CN108975375A - A kind of high whiteness native sulfate of barium production technology of high pure and ultra-fine - Google Patents
A kind of high whiteness native sulfate of barium production technology of high pure and ultra-fine Download PDFInfo
- Publication number
- CN108975375A CN108975375A CN201810899920.XA CN201810899920A CN108975375A CN 108975375 A CN108975375 A CN 108975375A CN 201810899920 A CN201810899920 A CN 201810899920A CN 108975375 A CN108975375 A CN 108975375A
- Authority
- CN
- China
- Prior art keywords
- sections
- product
- water
- washing
- leaching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
- C01F11/462—Sulfates of Sr or Ba
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/20—Halides
- C01F11/24—Chlorides
- C01F11/28—Chlorides by chlorination of alkaline-earth metal compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
- C01P2006/65—Chroma (C*)
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses a kind of high whiteness native sulfate of barium production technologies of high pure and ultra-fine, including broken process, acidleach process, washing step, evaporation and concentration process, film process process.The tcrude ore of barite is by rinsing, roughly grinding, sizing mixing and fine grinding again, ore grain size is set to reach 1000 mesh of D90 < or less, using two-stage acid leaching and dedusting, it is washed using four sections, again after depth fine grinding, drying are gathered dust, purity 94-98%, the high pure and ultra-fine barium sulfate or other grade products of whiteness 94-98%, granularity D90 for 3000-10000 mesh can be obtained.Present invention process adaptability is extremely strong, and technological operation is simple, and production cost is low, and the rate of recovery of the barium sulfate in raw ore is up to 98% or more.
Description
Technical field
The present invention relates to a kind of high whiteness native sulfate of barium production technologies of high pure and ultra-fine.
Background technique
Native sulfate of barium, that is, barite belongs to nonmetal mineral product.Pure barite whitening color is (due to impurity and tramp material
Influence also often in yellow, red or taupe etc.), there is glassy lustre.Barite system sulfate mineral.Ingredient is BaSO4.Weight is brilliant
Stone crystal grain is crystalloid crystal form feature, orthorhombic structure.Specific gravity 4.5, Mohs' hardness 3-3.5,1480 DEG C of fusing point.It
It is a kind of important industrial chemicals, is widely used in the production of barium salt industrial products and petroleum, natural gas extraction, medical treatment, pigment, fills out
In the industries such as material and cement industry mineralizer.Currently, the production method of barium sulfate has two classes.One is passed through using barite
Washing, removal of impurities, classification are crossed, then carries out crushing and processing and obtains.The essence improved for the purpose of its purity as far as possible is mentioned in many documents
The method of native sulfate of barium processed, such as through wet process acid alkali carries it is pure, brighten, wash, filter after obtain the process of refined natural barium sulfate:
Wherein, the common pure concrete processing procedure of wet process acid alkali carries is that certain density hydroxide is added in native sulfate of barium to be purified
In sodium solution, partial impurities reaction generates water-soluble product under hot conditions, and another part impurity is not reacted or generated
Hydroxide not soluble in water, then so that it is converted into water-soluble chloride with salt acid soak, gained slurries are through being filtered, washed
After obtain high-purity natural barium sulfate；It brightens to be added sodium dithionite with the high-purity natural barium sulfate of certain solid-to-liquid ratio
In slurries made of powder, and the process separated after dozens of minutes is stirred with certain speed.At this stage, also no discovery is not adopted in the industry
With the above process for refining, bulk industrial produces the enterprise of high-purity micro-fine native sulfate of barium powder.
Wherein, native sulfate of barium powder is because purity is low, color is gloomy and there are corner angle and surface to split on crystal fine particle surface
The defects of line and cause mobility poor, can only generally meet the application of downstream industry low-end product.Chemical synthesis barium sulfate
The production of one of raw material soluble barium salt, be with native sulfate of barium under the high temperature conditions, with charcoal occur redox reaction obtain
Then water-soluble barium sulphide makes it be then converted into other barium products, such as barium chloride, barium carbonate and barium hydroxide, this is more
It is the industry of a heavily contaminated, highly energy-consuming.Because production equipment investment is big, production technology is complicated, belong to high production cost, the energy disappears
The " three high " industry that consumption is high and three wastes discharge amount is big, faces growing environmental protection pressure, walks sustainable development with current China
The thinking of exhibition is seriously runed counter to, and is the limitation intermediate item in National Development and Reform Committee's industry restructuring guidance list；And chemical synthesis
Barium sulfate has the shortcomings that dispersibility is bad, oil absorption is higher and specific surface area is larger.
Technical problems to be solved and the technical solution adopted by the present invention carry out patent retrieval, retrieval knot according to the present invention
Fruit is as follows.
Patentee is Central South University, Patent No. 200910042777.3, a kind of production of barium sulfate of disclosure of the invention
Method, which is characterized in that S1 pulp transition: barium carbonate powder stirring is added to the water pulp, soluble sulfuric acid is then added
Salt carries out isomerization, and liquid after barium sulfate filter cake and transition is obtained by filtration；Or barium carbonate powder is stirred, soluble sulphur is added
Pulp in acid salt solution, and isomerization is carried out simultaneously, liquid after barium sulfate filter cake and transition is obtained by filtration；S2 washing: it filters
To barium sulfate filter cake dried after dilute sulfuric acid washs and obtain blanc fixe；S3 synthetical recovery: sulfuric acid is stirred, transition is added
Liquid afterwards, the soluble sulphate solution reacted return to pulp transition process and are recycled, and react the CO of generation2As carbonic acid
The raw materials for production of barium；Or by CO2Gas is passed through after transition crystallization in liquid and bicarbonate is precipitated, and crystalline mother solution returns to pulp transition
Process is recycled.The purpose of the present invention is to provide a kind of barium sulfate production methods, can effectively improve barium sulfate production
Economic benefit improves product quality, protects environment, improves the comprehensive resource utilization rate of barium sulfate production process.
Patentee is Central South University, application No. is 201110205890.6, a kind of nano barium sulfate of disclosure of the invention
Production method, which comprises the following steps: S1 catalysis transition: barium carbonate stirring is added and contains catalyst and buffer
Sulfuric acid solution in make the transition, filter to obtain barium sulfate filter cake；S2 washing: the barium sulfate filter cake being obtained by filtration directly adds water washing, or
Washing is added water after drying；S3 is dry: water washed barium sulfate first dries to obtain nano barium sulfate with dehydrated alcohol elution again, or will
Water washed barium sulfate adds water to size mixing, is spray-dried to obtain nano barium sulfate.The purpose of the present invention is to provide can be effectively controlled to receive
The partial size and particle diameter distribution of nano-barium sulfate improve product quality and economic benefit, a kind of nano barium sulfate to reduce environmental pollution
Production method.
By the retrieval of patent document, does not find the prior art that can destroy the invention patent novelty, do not deposit yet
The file of the invention can be destroyed be combineding with each other.
Summary of the invention
The invention discloses a kind of high whiteness native sulfate of barium production technologies of high pure and ultra-fine, which is characterized in that including following process:
S1, broken process: the tcrude ore of barite is by rinsing the ore warp by the silt inclusion removal in raw ore, after cleaning
Broken and corase grinding, it is 200 mesh or less that granularity, which reaches D90,；It sizes mixing again, the ore pulp after pulp is subjected to fine grinding, makes its granularity
Reaching D90 is 1000 mesh or less；Fine ground ore pulp obtains filtrate and filter residue after filters pressing, and the filtrate is without soda acid and calcium etc.
Impurity enters subsequent processing in the filter residue of this process circulating and recovering, generation；
S2, acidleach process:
One section of acidleach: the filter residue after fine grinding filters pressing in S1 process enters acidleach process, and filter residue carries out mixing leaching with hydrochloric acid solution
Out, the liquid of 20% volume enters evaporation and concentration process in the leachate that the ore pulp after leaching generates after filters pressing, remaining
Liquid is recycled in this process, and the primary leaching product of generation enters secondary pickling；
Two-stage acid leaching: the primary product that leaches continues to mix leaching with hydrochloric acid solution, contains in leaching process depending on solution impurity
Additive A is added in amount, stops reaction, the secondary leachate that the ore pulp after leaching generates after filters pressing after pH reaches 2.0-2.5
One section of acidleach is returned, the secondary leaching product of generation enters washing step；Wherein, the additive A is zinc powder or aluminium powder；
S3, washing step:
One section of washing: the secondary leaching product through generating in S2 process generates one section of water lotion and one after water rinses, through filters pressing
Duan Shuixi product, one section of water lotion return to S2 process, and one section of washing product enters two sections of water-washing steps；
Two sections of washings: the one section of washing product generated in one section of washing generates two sections of water lotions and two after water rinses, through filters pressing
Duan Shuixi product, two sections of water lotions return to one section of water-washing step, and two sections of washing products enter three sections of water-washing steps；
Three sections of washings: the two sections of washing products generated in two sections of washings generate three sections of water lotions and three after water rinses, through filters pressing
Duan Shuixi product, three sections of water lotions return to two sections of washings, and three sections of washing products enter four sections of water-washing steps；
Four sections of washings: the three sections of washing products generated in three sections of washings generate four sections of water lotions and four sections through filters pressing after water rinses
Product is washed, four sections of water lotions enter film processing system, and four sections of washing products enter formed product process；
S4, formed product process:
Four sections of washing products in S3 process are subjected to depth fine grinding, drying, packing:
Depth fine grinding: four sections of washing products regard customer requirement, carry out depth fine grinding, it is 3000-10000 that product granularity, which reaches D90,
Additive B and addition of C is added in mesh during the grinding process, it is ensured that the particle of product does not reunite while increasing product whiteness, after mill
Product is sent into drying system；The additive B be it is indigo, the addition of C be stearate or metatitanic acid rouge；
It is dry: the product after fine grinding to be dried, the product after drying enters packaging system；
Be packaged: the product after dry is gathered dust packaging and warehousing.
Further, the barium sulfate production technology further includes being concentrated by evaporation process: the primary leaching through generating in S2 process
Liquid is after lime neutralizes out, and into process is concentrated by evaporation, the evaporation water of generation returns to S3 process, and the concentrated water of generation is crystallized through being granulated
After form calcium chloride product.
Further, the barium sulfate production technology further includes film process process: four sections of water lotions are laggard through soda ash drop calcium
Enter press filteration system, generate filtrate and filter residue, filtrate returns to four sections of water in S3 process through ultrafiltration, counter-infiltration system, the fresh water of generation
It washes and makees wash water, concentrated water returns and rushes mine in S1 process, and filter residue, which returns, is concentrated by evaporation process.
Further, in the acidleach process filter residue and hydrochloric acid solution involved in one section of acidleach and two-stage acid leaching according to
Liquid-solid ratio 2.5:1 carries out mixing leaching.
Further, one section of acidleach and extraction temperature involved in two-stage acid leaching are 30-60 DEG C in the acidleach process,
Extraction time is 30-60 minutes.
Further, the dosage of additive A involved in two-stage acid leaching is pickle liquor per ton in the acidleach process
In add additive A 3-6kg.
Further, in the washing step one section washing, two sections washing, three sections washing, four sections washing described in be related to
The additional amount of rinse water is 2.5 times of required rinse products amount.
This technique has technological operation simple compared with traditional precipitation method, and production cost is low, and barium sulfate returns in raw ore
Yield is up to 98%, and traditional precipitation method generally only have the characteristics of 70-80%, stable product quality, function admirable.
This technique is compared with Traditional Method, without destroying BaSO in raw material in this art production process4Mineral crystal structure,
In subsequent processing, the pattern of product is in spherical substantially, compared with the product that traditional mode of production goes out, in certain application field (such as blooms
Product) there is more obvious advantage.This Technological adaptability is extremely strong, can produce different grain size, purity, white according to different demands
The product of degree.
The most important, this technique have a clear superiority in environmental protection compared with traditional precipitation method, and whole set process is being transported
There is no waste residue, exhaust gas, waste water to generate in capable process.This technique has the high rate of recovery, the chlorination generated in production process
Calcium also forms calcium chloride product after processing, and without solid waste, and Traditional Method is because of rate of recovery < 80%, inevitably
A large amount of waste residue is had to generate；The a small amount of acid mist tail gas generated in this technical process is handled through lye absorption, is generated without exhaust gas；
All liquid in production process, third section washing before solution all returns upper level utilize, the 4th section of wash water through membranous system at
After reason, fresh water returns to the 4th section of reuse, and fresh water more can guarantee the quality of product, and concentrated water returns to front and rushes mine, sizes mixing.On the one hand
Water consumption has been saved, has on the other hand ensured that this technique emits no waste water.With good economic benefit and environmental benefit.
Detailed description of the invention
Fig. 1 is for process flow chart of the invention.
Specific embodiment
Embodiment 1
The invention discloses a kind of high whiteness native sulfate of barium production technologies of high pure and ultra-fine, which is characterized in that including following process:
Broken process, acidleach process, washing step are concentrated by evaporation process, film process process.
S1, broken process:
The tcrude ore of barite by rinse the ore by inclusion removals such as silts in raw ore, after cleaning through it is broken with it is thick
Mill, it is 200 mesh or less that granularity, which reaches D90,.Size mixing again, barite powder with water by 1:1 mixing pulp, by the mine after pulp
Slurry carries out fine grinding, its granularity is made to reach 1000 mesh of D90 or less.Fine ground ore pulp obtains filtrate and filter residue after filters pressing.It should
Filtrate is without the impurity such as soda acid and calcium, in this process circulating and recovering.The filter residue of generation enters subsequent processing.
S2, acidleach process:
One section of acidleach: the filter residue after fine grinding filters pressing in S1 process enters acidleach process, and filter residue and hydrochloric acid solution are according to liquid-solid ratio
2.5:1 carrying out mixing leaching.35 DEG C of extraction temperature, extraction time 60 minutes.Ore pulp after leaching generates primary after filters pressing
The liquid of about 20% volume enters evaporation and concentration process in leachate, and remaining liquid is recycled in this process, the primary leaching of generation
Product enters secondary pickling.
Two-stage acid leaching: the primary product that leaches carries out mixing leaching in this step according to liquid-solid ratio 2.5:1 with hydrochloric acid solution,
35 DEG C of extraction temperature, extraction time 45 minutes, be to add 6kg in pickle liquor per ton in the dosage of leaching process additive A, to
PH stablizes stops reaction after 2.0-2.5.The secondary leachate that ore pulp after leaching generates after filters pressing returns one section of acidleach, generates
Secondary leaching product enter washing step.The additive A is zinc powder or aluminium powder.
S3, washing step:
One section of washing: the secondary leaching product through generating in S2 process generates one section of water lotion and one section through filters pressing after water rinses
Wash product.Wherein the additional amount of rinse water is secondary 2.5 times for leaching product volume.One section of water lotion return S2 process, one section
It washes product and enters two sections of water-washing steps.
Two sections of washings: in one section of washing one section of washing product generating after water rinses through filters pressing generate two sections of water lotions with
Two sections of washing products.Wherein, the additional amount of rinse water is 2.5 times of one section of washing product volume.Two sections of water lotions return to one section of water
Step is washed, two sections of washing products enter three sections of water-washing steps.
Three sections of washings: in two sections of washings two sections of washing products generating after water rinses through filters pressing generate three sections of water lotions with
Three sections of washing products.Wherein, the additional amount of rinse water is 2.5 times of two sections of washing product volumes.Three sections of water lotions return to two sections of water
It washes, three sections of washing products enter four sections of water-washing steps.
Four sections of washings: in three sections of washings three sections of washing products generating after water rinses through filters pressing generate four sections of water lotions with
Four sections of washing products, wherein the additional amount of rinse water is 2.5 times of three sections of washing product volumes.Four sections of water lotions enter film process
System, four sections of washing products enter formed product process.
S4, formed product process
Include depth fine grinding by four sections of washing products in S3 process, drying, be packaged step.
Depth fine grinding: four sections of washing products carry out depth fine grinding, and product granularity reaches 3000 mesh of D90, in process of lapping
Middle addition additive B and addition of C, it is ensured that the particle of product does not reunite while increasing product whiteness, and last product is sent into drying
System.The additive B be it is indigo, the addition of C be stearate or metatitanic acid rouge, it is preferable that the addition of C be tristearin
Sour sodium.
Dry: the product after upper section fine grinding is dried, and the product after drying enters packaging system.
Be packaged: the product after dry is packaged into the product warehousing of certain specification through gathering dust.Product is through detecting, BaSO4Content
> 96.8%, whiteness 97%, Ca content 0.01%, Mg content 0.001%, Fe content 0.003%.
S5, it is concentrated by evaporation process:
A leachate through generating in S2 process is after lime neutralizes, and into process is concentrated by evaporation, the evaporation water of generation is returned
The concentrate of S3 process, generation forms calcium chloride product after being granulated crystallization.
S6, film process process
Four sections of water lotions enter press filteration system after calcium drops in soda ash, generate filtrate and filter residue, filtrate through ultrafiltration, counter-infiltration system,
The fresh water of generation returns to four sections of washings in S3 process, and concentrated water returns and rushes mine in S1 process, and filter residue returns to S5 process.
Embodiment 2
The invention discloses a kind of high whiteness native sulfate of barium production technologies of high pure and ultra-fine, which is characterized in that including following process:
Broken process, acidleach process, washing step are concentrated by evaporation process, film process process.
S1, broken process:
The tcrude ore of barite by rinse the ore by inclusion removals such as silts in raw ore, after cleaning through it is broken with it is thick
Mill, it is 200 mesh or less that granularity, which reaches D90,.Size mixing again, barite powder with water by 1:1 mixing pulp, by the mine after pulp
Slurry carries out fine grinding, its granularity is made to reach 1000 mesh of D90 or less.Fine ground ore pulp obtains filtrate and filter residue after filters pressing.It should
Filtrate is without the impurity such as soda acid and calcium, in this process circulating and recovering.The filter residue of generation enters subsequent processing.
S2, acidleach process:
One section of acidleach: the filter residue after fine grinding filters pressing in S1 process enters acidleach process, and filter residue and hydrochloric acid solution are according to liquid-solid ratio
2.5:1 carrying out mixing leaching.60 DEG C of extraction temperature, extraction time 60 minutes.Ore pulp after leaching generates primary after filters pressing
The liquid of about 20% volume enters evaporation and concentration process in leachate, and remaining liquid is recycled in this process, the primary leaching of generation
Product enters secondary pickling.
Two-stage acid leaching: the primary product that leaches carries out mixing leaching in this step according to liquid-solid ratio 2.5:1 with hydrochloric acid solution,
60 DEG C of extraction temperature, extraction time 60 minutes.It is to add 5kg in pickle liquor per ton in the dosage of leaching process additive A.To
PH stablizes stops reaction after 2.0-2.5.The secondary leachate that ore pulp after leaching generates after filters pressing returns one section of acidleach, generates
Secondary leaching product enter washing step.Wherein, the additive A is zinc powder or aluminium powder.
S3, washing step:
One section of washing: the secondary leaching product through generating in S2 process generates one section of water lotion and one section through filters pressing after water rinses
Wash product.Wherein the additional amount of rinse water is secondary 2.5 times for leaching product volume.One section of water lotion return S2 process, one section
It washes product and enters two sections of water-washing steps.
Two sections of washings: in one section of washing one section of washing product generating after water rinses through filters pressing generate two sections of water lotions with
Two sections of washing products.Wherein the additional amount of rinse water is 2.5 times of one section of washing product volume.Two sections of water lotions return to one section of washing
Step, two sections of washing products enter three sections of water-washing steps.
Three sections of washings: in two sections of washings two sections of washing products generating after water rinses through filters pressing generate three sections of water lotions with
Three sections of washing products.Wherein the additional amount of rinse water is 2.5 times of two sections of washing product volumes.Three sections of water lotions return to two sections of water
It washes, three sections of washing products enter four sections of water-washing steps.
Four sections of washings: in three sections of washings three sections of washing products generating after water rinses through filters pressing generate four sections of water lotions with
Four sections of washing products, wherein the additional amount of rinse water is 2.5 times of three sections of washing product volumes.Four sections of water lotions enter film process system
System, four sections of washing products enter formed product process.
S4, formed product process:
Include depth fine grinding by four sections of washing products in S3 process, drying, be packaged step.
Depth fine grinding: four sections of washing products carry out depth fine grinding, and it is 10000 mesh that product granularity, which reaches D90, ground
Additive B and addition of C are added in journey, it is ensured that the particle of product does not reunite while increasing product whiteness, and last product is sent into dry
Drying system.The additive B be it is indigo, the addition of C be stearate or metatitanic acid rouge, it is preferable that the addition of C is hard
Resin acid sodium.
Dry: the product after upper section fine grinding is dried, and the product after drying enters packaging system.
Be packaged: the product after dry is packaged into the product warehousing of certain specification through gathering dust.Product is through detecting, BaSO4Content
> 98%, whiteness 98%, Ca content 0.009%, Mg content 0.002%, Fe content 0.002%.
S5, it is concentrated by evaporation process:
A leachate through generating in S2 process is after lime neutralizes, and into process is concentrated by evaporation, the evaporation water of generation is returned
The concentrate of S3 process, generation forms calcium chloride product after being granulated crystallization.
S6, film process process
Four sections of water lotions enter press filteration system after calcium drops in soda ash, generate filtrate and filter residue.Filtrate through ultrafiltration, counter-infiltration system,
The fresh water of generation returns to four sections of washings in S3 process, and concentrated water returns in S1 process and rushes mine.Filter residue returns to S5 process.
Embodiment 3
The invention discloses a kind of high whiteness native sulfate of barium production technologies of high pure and ultra-fine, which is characterized in that including following process:
S1, broken process:
The tcrude ore of barite by rinse the ore by inclusion removals such as silts in raw ore, after cleaning through it is broken with it is thick
Mill, it is 200 mesh or less that granularity, which reaches D90,.Size mixing again, barite powder with water by 1:1 mixing pulp, by the mine after pulp
Slurry carries out fine grinding, its granularity is made to reach 1000 mesh of D90 or less.Fine ground ore pulp obtains filtrate and filter residue after filters pressing.It should
Filtrate is without the impurity such as soda acid and calcium, in this process circulating and recovering.The filter residue of generation enters subsequent processing.
S2, acidleach process:
One section of acidleach: the filter residue after fine grinding filters pressing in S1 process enters acidleach process, and filter residue and hydrochloric acid solution are according to liquid-solid ratio
2.5:1 carrying out mixing leaching.60 DEG C of extraction temperature, extraction time 30 minutes.Ore pulp after leaching generates primary after filters pressing
The liquid of about 20% volume enters evaporation and concentration process in leachate, and remaining liquid is recycled in this process, the primary leaching of generation
Product enters secondary pickling.
Two-stage acid leaching: the primary product that leaches carries out mixing leaching in this step according to liquid-solid ratio 2.5:1 with hydrochloric acid solution,
60 DEG C of extraction temperature, extraction time 30 minutes.It is to add 4kg in pickle liquor per ton in the dosage of leaching process additive A.To
PH stablizes stops reaction after 2.0-2.5.The secondary leachate that ore pulp after leaching generates after filters pressing returns one section of acidleach.It generates
Secondary leaching product enter washing step.Wherein, the additive A is zinc powder or aluminium powder.
S3, washing step:
One section of washing: the secondary leaching product through generating in S2 process generates one section of water lotion and one section through filters pressing after water rinses
Wash product.Wherein the additional amount of rinse water is secondary 2.5 times for leaching product volume.One section of water lotion return S2 process, one section
It washes product and enters two sections of water-washing steps.
Two sections of washings: in one section of washing one section of washing product generating after water rinses through filters pressing generate two sections of water lotions with
Two sections of washing products.Wherein the additional amount of rinse water is 2.5 times of one section of washing product volume.Two sections of water lotions return to one section of washing
Step, two sections of washing products enter three sections of water-washing steps.
Three sections of washings: in two sections of washings two sections of washing products generating after water rinses through filters pressing generate three sections of water lotions with
Three sections of washing products.Wherein the additional amount of rinse water is 2.5 times of two sections of washing product volumes.Three sections of water lotions return to two sections of water
It washes, three sections of washing products enter four sections of water-washing steps.
Four sections of washings: in three sections of washings three sections of washing products generating after water rinses through filters pressing generate four sections of water lotions with
Four sections of washing products, wherein the additional amount of rinse water is 2.5 times of three sections of washing product volumes.Four sections of water lotions enter film process system
System, four sections of washing products enter formed product process.
S4, formed product process
Include depth fine grinding by four sections of washing products in S3 process, drying, be packaged step.
Depth fine grinding: four sections of washing products carry out depth fine grinding, and product granularity reaches 7000 mesh of D90, in process of lapping
Middle addition additive B and addition of C, it is ensured that the particle of product does not reunite while increasing product whiteness, and last product is sent into drying
System.The additive B be it is indigo, the addition of C be stearate or metatitanic acid rouge, it is preferable that the addition of C be tristearin
Sour sodium.
Dry: the product after upper section fine grinding is dried, and the product after drying enters packaging system.
Be packaged: the product after dry is packaged into the product warehousing of certain specification through gathering dust.Product is through detecting, BaSO4Content
> 97.5%, whiteness 97.6%, Ca content 0.013%, Mg content 0.003%, Fe content 0.001%.
The high whiteness native sulfate of barium production technology of a kind of high pure and ultra-fine further includes being concentrated by evaporation process:
A leachate through generating in S2 process is after lime neutralizes, and into process is concentrated by evaporation, the evaporation water of generation is returned
The concentrate of S3 process, generation forms calcium chloride product after being granulated crystallization.
The high whiteness native sulfate of barium production technology of a kind of high pure and ultra-fine, further includes film process process:
Four sections of water lotions enter press filteration system after calcium drops in soda ash, generate filtrate and filter residue.Filtrate through ultrafiltration, counter-infiltration system,
The fresh water of generation returns to four sections of washings in S3 process, and concentrated water returns and rushes mine in S1 process, and filter residue, which returns, is concentrated by evaporation process.
Above embodiments are only the preferred embodiment of the present invention, it is noted that those skilled in the art,
Without departing from the principles of the invention, made several improvement, also should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of high whiteness native sulfate of barium production technology of high pure and ultra-fine, which is characterized in that including following process:
S1, broken process: the tcrude ore of barite is by rinsing the ore warp by the silt inclusion removal in raw ore, after cleaning
Broken and corase grinding, it is 200 mesh or less that granularity, which reaches D90,；It sizes mixing again, the ore pulp after pulp is subjected to fine grinding, makes its granularity
Reaching D90 is 1000 mesh or less；Fine ground ore pulp obtains filtrate and filter residue after filters pressing, and the filtrate is without soda acid and calcium etc.
Impurity enters subsequent processing in the filter residue of this process circulating and recovering, generation；
S2, acidleach process:
One section of acidleach: the filter residue after fine grinding filters pressing in S1 process enters acidleach process, and filter residue carries out mixing leaching with hydrochloric acid solution
Out, the liquid of 20% volume enters evaporation and concentration process in the leachate that the ore pulp after leaching generates after filters pressing, remaining
Liquid is recycled in this process, and the primary leaching product of generation enters secondary pickling；
Two-stage acid leaching: the primary product that leaches continues to mix leaching with hydrochloric acid solution, and additive A is added in leaching process,
The additive A is zinc powder or aluminium powder, stops reaction after pH reaches 2.0-2.5, what the ore pulp after leaching generated after filters pressing
Secondary leachate returns one section of acidleach, and the secondary leaching product of generation enters washing step；
S3, washing step:
One section of washing: the secondary leaching product through generating in S2 process generates one section of water lotion and one after water rinses, through filters pressing
Duan Shuixi product, one section of water lotion return to S2 process, and one section of washing product enters two sections of water-washing steps；
Two sections of washings: the one section of washing product generated in one section of washing generates two sections of water lotions and two after water rinses, through filters pressing
Duan Shuixi product, two sections of water lotions return to one section of water-washing step, and two sections of washing products enter three sections of water-washing steps；
Three sections of washings: the two sections of washing products generated in two sections of washings generate three sections of water lotions and three after water rinses, through filters pressing
Duan Shuixi product, three sections of water lotions return to two sections of washings, and three sections of washing products enter four sections of water-washing steps；
Four sections of washings: the three sections of washing products generated in three sections of washings generate four sections of water lotions and four sections through filters pressing after water rinses
Product is washed, four sections of water lotions enter film processing system, and four sections of washing products enter formed product process；
S4, formed product process:
Four sections of washing products in S3 process are subjected to depth fine grinding, drying, packing:
Depth fine grinding: four sections of washing products regard customer requirement, carry out depth fine grinding, it is 3000-10000 that product granularity, which reaches D90,
Additive B and addition of C is added in mesh during the grinding process, it is ensured that the particle of product does not reunite while increasing product whiteness, after mill
Product is sent into drying system；Wherein, the additive B is indigo, and the addition of C is stearate or metatitanic acid rouge；
It is dry: the product after fine grinding to be dried, the product after drying enters packaging system；
Be packaged: the product after dry is gathered dust packaging and warehousing.
2. a kind of high whiteness native sulfate of barium production technology of high pure and ultra-fine as described in claim 1, which is characterized in that further include
Be concentrated by evaporation process: a leachate through generating in S2 process is after lime neutralizes, into evaporation and concentration process, the steaming of generation
Shampoo returns to S3 process, and the concentrated water of generation forms calcium chloride product after being granulated crystallization.
3. a kind of high whiteness native sulfate of barium production technology of high pure and ultra-fine as described in claim 1, which is characterized in that further include
Film process process: four sections of water lotions enter press filteration system after calcium drops in soda ash, generate filtrate and filter residue, filtrate is through ultrafiltration, reverse osmosis
Permeable system, the fresh water of generation return to four sections of washings in S3 process and make wash water, and concentrated water returns and rushes mine in S1 process, and filter residue returns to evaporation
Enrichment process.
4. a kind of high whiteness native sulfate of barium production technology of high pure and ultra-fine as described in claim 1, it is characterised in that: described
One section of acidleach carries out mixing leaching according to liquid-solid ratio 2.5:1 with hydrochloric acid solution with filter residue involved in two-stage acid leaching in acidleach process
Out.
5. a kind of high whiteness native sulfate of barium production technology of high pure and ultra-fine as described in claim 1, it is characterised in that: described
One section of acidleach and extraction temperature involved in two-stage acid leaching are 30-60 DEG C in acidleach process, and extraction time is 30-60 minutes.
6. a kind of high whiteness native sulfate of barium production technology of high pure and ultra-fine as described in claim 1, it is characterised in that: described
The dosage of additive A involved in two-stage acid leaching is to add additive A 3-6kg in pickle liquor per ton in acidleach process.
7. a kind of high whiteness native sulfate of barium production technology of high pure and ultra-fine as described in claim 1, it is characterised in that: described
In washing step one section washing, two sections washing, three sections washing, four sections washing described in be related to rinse water additional amount be required rinsing
2.5 times of product volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810899920.XA CN108975375A (en) | 2018-08-09 | 2018-08-09 | A kind of high whiteness native sulfate of barium production technology of high pure and ultra-fine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810899920.XA CN108975375A (en) | 2018-08-09 | 2018-08-09 | A kind of high whiteness native sulfate of barium production technology of high pure and ultra-fine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108975375A true CN108975375A (en) | 2018-12-11 |
Family
ID=64556148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810899920.XA Pending CN108975375A (en) | 2018-08-09 | 2018-08-09 | A kind of high whiteness native sulfate of barium production technology of high pure and ultra-fine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108975375A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111302378A (en) * | 2020-03-17 | 2020-06-19 | 湖南楚天钡业有限公司 | Process for producing barium sulfate and calcium sulfate by using barite |
| CN111348672A (en) * | 2020-03-17 | 2020-06-30 | 湖南楚天钡业有限公司 | Process for producing barium sulfate and calcium chloride by using barite |
| CN113200562A (en) * | 2021-05-10 | 2021-08-03 | 江西铜业技术研究院有限公司 | Method for purifying and whitening barite concentrate |
| CN113387381A (en) * | 2021-05-10 | 2021-09-14 | 江西铜业技术研究院有限公司 | Process for producing industrial precipitated barium sulfate by taking barite concentrate as raw material |
| CN114684841A (en) * | 2022-04-09 | 2022-07-01 | 贵州邦丹纳米科技有限公司 | Barite high-purity purification process |
| CN114956148A (en) * | 2022-06-30 | 2022-08-30 | 包头稀土研究院 | Method for reducing content of rare earth elements in barium sulfate precipitate and application of hydrochloric acid solution |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RO59657A2 (en) * | 1972-02-09 | 1976-04-15 | ||
| JPS5135592B2 (en) * | 1973-12-28 | 1976-10-04 | ||
| CN1065874A (en) * | 1992-04-29 | 1992-11-04 | 武汉地质管理干部学院 | Barite powder miniaturization and bleaching process |
| CN101481129A (en) * | 2009-03-04 | 2009-07-15 | 中南大学 | Method for producing barium sulfate |
| CN102303890A (en) * | 2011-08-19 | 2012-01-04 | 卢长生 | Production process for converting gray black barite into white barite finished product |
| CN102351233A (en) * | 2011-07-22 | 2012-02-15 | 中南大学 | Production process for nanometer barium sulfate |
| CN102616824A (en) * | 2012-04-09 | 2012-08-01 | 武汉理工大学 | Method for preparing ultrafine high-whiteness active barite powder |
| CN106587128A (en) * | 2016-12-30 | 2017-04-26 | 刘军 | Production process of super-thin high purity and high whiteness barium sulfate |
-
2018
- 2018-08-09 CN CN201810899920.XA patent/CN108975375A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RO59657A2 (en) * | 1972-02-09 | 1976-04-15 | ||
| JPS5135592B2 (en) * | 1973-12-28 | 1976-10-04 | ||
| CN1065874A (en) * | 1992-04-29 | 1992-11-04 | 武汉地质管理干部学院 | Barite powder miniaturization and bleaching process |
| CN101481129A (en) * | 2009-03-04 | 2009-07-15 | 中南大学 | Method for producing barium sulfate |
| CN102351233A (en) * | 2011-07-22 | 2012-02-15 | 中南大学 | Production process for nanometer barium sulfate |
| CN102303890A (en) * | 2011-08-19 | 2012-01-04 | 卢长生 | Production process for converting gray black barite into white barite finished product |
| CN102616824A (en) * | 2012-04-09 | 2012-08-01 | 武汉理工大学 | Method for preparing ultrafine high-whiteness active barite powder |
| CN106587128A (en) * | 2016-12-30 | 2017-04-26 | 刘军 | Production process of super-thin high purity and high whiteness barium sulfate |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111302378A (en) * | 2020-03-17 | 2020-06-19 | 湖南楚天钡业有限公司 | Process for producing barium sulfate and calcium sulfate by using barite |
| CN111348672A (en) * | 2020-03-17 | 2020-06-30 | 湖南楚天钡业有限公司 | Process for producing barium sulfate and calcium chloride by using barite |
| CN113200562A (en) * | 2021-05-10 | 2021-08-03 | 江西铜业技术研究院有限公司 | Method for purifying and whitening barite concentrate |
| CN113387381A (en) * | 2021-05-10 | 2021-09-14 | 江西铜业技术研究院有限公司 | Process for producing industrial precipitated barium sulfate by taking barite concentrate as raw material |
| CN114684841A (en) * | 2022-04-09 | 2022-07-01 | 贵州邦丹纳米科技有限公司 | Barite high-purity purification process |
| CN114956148A (en) * | 2022-06-30 | 2022-08-30 | 包头稀土研究院 | Method for reducing content of rare earth elements in barium sulfate precipitate and application of hydrochloric acid solution |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108975375A (en) | A kind of high whiteness native sulfate of barium production technology of high pure and ultra-fine | |
| CN104480314B (en) | Method for recycling waste residue in manganese industry production | |
| CN102249253A (en) | Method for producing aluminum oxide and co-producing active calcium silicate through high-alumina fly ash | |
| CN102976387B (en) | Improved preparation technology of white mud calcium carbonate for papermaking filler | |
| CN109052447A (en) | Pass through the brightness improvement of the lime causticization product of predigestion | |
| CN106587128A (en) | Production process of super-thin high purity and high whiteness barium sulfate | |
| CN107540009A (en) | A kind of method that nano-calcium carbonate is prepared using carbide slag | |
| CN108529658B (en) | A kind of method of reclaiming aluminium hydroxide from aluminium ash | |
| CN102161495A (en) | Method for recycling soda waste mud from soda plant | |
| CN101306819A (en) | Process for abstracting white carbon black from fly ash or slag | |
| CN1094466C (en) | Method of extracting potassium chloride from mixed ore of sylvine and carnallite | |
| CN106517277A (en) | Method for producing aluminum oxide co-production silicon fertilizer from bauxite | |
| CN101823745B (en) | Method for producing superfine light calcium carbonate, ammonium chloride and carbon powder by using combined alkali waste liquid and carbide slag | |
| CN108840363A (en) | A kind of preparation process of high-purity high whiteness barium sulfate | |
| NO131890B (en) | ||
| CN113737004A (en) | Process for recovering lithium from neutralization impurity-removed lithium slag | |
| CN101823736B (en) | Method for producing light magnesium carbonate and co-producing calcium carbonate and water glass by chlor-alkali salt sludge | |
| CN111333093A (en) | Method for producing light calcium carbonate by using industrial alkaline residue white mud | |
| CN102092757B (en) | Method for producing fine light calcium carbonate, ammonium chloride and carbon powder by using combined alkali waste liquid and carbide slag | |
| CN103073125B (en) | Method for using acidolysis nickel laterite ore wastewater | |
| CN101823744B (en) | Method for producing light calcium carbonate, ammonium chloride and carbon powder by using combined alkali waste liquid and carbide slag | |
| CN101830493A (en) | Method for treating waste salt slurry of sodium carbonate with sodium carbonate and sodium sulfate | |
| CN101837997B (en) | Method for preparing magnesium carbonate and co-producing sodium carbonate and calcium sulfate by using waste soda ash salt slurry | |
| CN101823737B (en) | Method for producing light magnesium carbonate and co-producing ultra-fine calcium carbonate and sodium silicate by chlor-alkali salt sludge | |
| CN108101105A (en) | The method of preparation and use of calcining seeds in sulfuric acid method titanium pigment production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181211 |