CN109264745A - A kind of hydroxide flake potassium production method - Google Patents
A kind of hydroxide flake potassium production method Download PDFInfo
- Publication number
- CN109264745A CN109264745A CN201811500312.3A CN201811500312A CN109264745A CN 109264745 A CN109264745 A CN 109264745A CN 201811500312 A CN201811500312 A CN 201811500312A CN 109264745 A CN109264745 A CN 109264745A
- Authority
- CN
- China
- Prior art keywords
- lye
- concentration
- liquid glucose
- sugar
- production method
- 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
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910052700 potassium Inorganic materials 0.000 title claims abstract description 48
- 239000011591 potassium Substances 0.000 title claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Chemical compound OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims abstract description 55
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000003756 stirring Methods 0.000 claims abstract description 25
- 238000010907 mechanical stirring Methods 0.000 claims abstract description 19
- 239000003518 caustics Substances 0.000 claims abstract description 12
- 238000004094 preconcentration Methods 0.000 claims abstract description 11
- 235000000346 sugar Nutrition 0.000 claims description 50
- 238000007599 discharging Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000005054 agglomeration Methods 0.000 abstract description 4
- 230000002776 aggregation Effects 0.000 abstract description 4
- 238000012797 qualification Methods 0.000 abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 149
- 235000011121 sodium hydroxide Nutrition 0.000 description 71
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 24
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 238000009923 sugaring Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 5
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 239000002585 base Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical group O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 229910000480 nickel oxide Inorganic materials 0.000 description 2
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 2
- 229910001950 potassium oxide Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-N chloric acid Chemical compound OCl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-N 0.000 description 1
- 229940005991 chloric acid Drugs 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 235000021552 granulated sugar Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000009992 mercerising Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- -1 potassium boron hydrogen Chemical class 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
- C01D1/04—Hydroxides
- C01D1/44—Preparation in the form of granules, pieces, or other shaped products
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
- C01D1/04—Hydroxides
- C01D1/42—Concentration; Dehydration
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The present invention discloses a kind of hydroxide flake potassium production method, comprising the following steps: Step 1: lye measuring tank is equipped with lye, lye is delivered to falling liquid film preconcentrator by the first lye pump；Step 2: sugared slot is equipped with liquid glucose, sugared slot stirs liquid glucose by mechanical stirring device, so that even concentration, liquid glucose is delivered to the pipeline between the first lye pump and falling liquid film preconcentrator by liquid glucose metering pump；Step 3: falling liquid film preconcentrator pre-concentration lye, its concentration is promoted, the lye after pre-concentration is delivered to enrichment facility by the second lye pump；Step 4: lye is concentrated in enrichment facility, its concentration is promoted to 95% or more, is delivered to flake caustic unit；Step 5: lye is prepared into hydroxide flake potassium by flake caustic unit.Hydroxide flake potassium production method provided by the invention is stirred continuously liquid glucose by mechanical stirring device, easy to operate, the time is short, and liquid glucose will not be layered agglomeration, and the uniformity is high, ensure that the quality of hydroxide flake potassium, substantially increase qualification rate.
Description
Technical field
The present invention relates to hydroxide flake potassium production technical fields, more particularly to a kind of hydroxide flake potassium producer
Method.
Background technique
Potassium hydroxide, chemical formula KOH, a kind of white powder or chip solid, have strong basicity and corrosivity.Easily absorb
Moisture in air and deliquesce, absorbing carbon dioxide form potassium carbonate.There are extremely strong alkalinity and corrosivity, property and caustic soda phase
Seemingly.As basic chemical raw materials, potassium hydroxide is widely used in the raw material of sylvite production, such as producing potassium boron hydrogen, antisterone
Equal medical industries, for producing the light industry such as SOFT SOAP, alkaline storage battery, for dye industries such as reducing dyes, for being electroplated
Equal electrochemical industries, for print and dye, bleach and the textile industries such as mercerising in.
The color of hydroxide flake potassium is to measure one of most important index of its quality, guarantees hydroxide flake produced
With the variation of resting period discoloration does not occur for the color of potassium, is the key point for improving product quality.It is raw in hydroxide flake potassium
During production, the lye of high concentration is often condensed by the spent liquor evaporation of low concentration, then prepare hydroxide flake potassium, but concentrated base
There is certain corrosivity to nickel control equipment, chlorate, chlorate when temperature reaches 250 DEG C or more are mainly often contained in lye
Can gradually decompose, and release nascent oxygen and react with nickel control equipment, generate nickel oxide, nickel oxide be soluble in concentrated base and by
Lye is taken away.Such process is repeated in concentrated base evaporation and leads to nickel control equipment corrosion and damage, and hydroxide flake potassium is easy
Discoloration, so that hydroxide flake potassium is off quality.Common processing method is that sugar is dissolved as liquid glucose, is added to lye
In, be allowed to the chloric acid reactant salt in lye, and then control sheet potassium hydroxide coloration.
Its reaction mechanism are as follows: C12H22O11+8KClO3=8KCl+12CO2+11H2O；
The CO of generation2It is reacted with KOH: CO2+ 2KOH=K2CO3+H2O。
To guarantee that sugar also can quickly be dissolved in low temperature, the steam that sugaring passes through heating often is stirred, but steam stirs
It mixes and is artificially controlled, if quantity of steam is excessive, liquid glucose can be blown out, if quantity of steam is too small, sugared meltage is small, and needs to operate
Personnel constantly observe the size of quantity of steam and whether sugar is completely dissolved, time-consuming and laborious；And after sugar is completely dissolved, steam
Vapour stirring stops, and sugar easily layering agglomeration, concentration is unstable, and sugaring amount is uneven, and the hydroxide flake potassium produced is caused not to be
White, but there is green, purple or grey, seriously affect the quality of hydroxide flake potassium.
Summary of the invention
The purpose of the present invention is to provide a kind of hydroxide flake potassium production methods, to solve steam-stirring in the prior art
Sugar is easily layered the problem of agglomerating when time-consuming and laborious, stopping is stirred.
To achieve the goals above, the invention provides the following technical scheme: a kind of hydroxide flake potassium production method, described
Hydroxide flake potassium production method is the following steps are included: Step 1: the alkali that lye measuring tank is 48% ± 0.5% equipped with concentration
Liquid, the lye are delivered to falling liquid film preconcentrator by the first lye pump；Step 2: sugared slot is 5%~6.5% equipped with concentration
Liquid glucose, the sugar slot stir the liquid glucose by mechanical stirring device, so that the even concentration of the liquid glucose, the liquid glucose passes through
Liquid glucose metering pump is delivered to the pipeline between first lye pump and the falling liquid film preconcentrator；Step 3: the falling liquid film is pre-
Its concentration is promoted to 53.0% ± 0.5%, after pre-concentration by the lye that inspissator pre-concentration concentration is 48% ± 0.5%
The lye enrichment facility is delivered to by the second lye pump；Step 4: enrichment facility concentration concentration be 53.0% ±
Its concentration is promoted to 95% or more, is delivered to flake caustic unit by 0.5% lye；Step 5: the flake caustic unit is by concentration
95% or more the lye is prepared into hydroxide flake potassium.
Further, the step 3 further include: the lye after pre-concentration is defeated simultaneously by second lye pump
It send to the pipeline between first lye pump and the falling liquid film preconcentrator, for flowing back.
Further, the liquid glucose is sugar solution of the concentration between 5%~6.5%.
Further, the solvent of the sugar solution is steam condensate.
Further, the preparation process of liquid glucose described in step 2 includes: that the sugared slot is equipped with sugar bowl, into the sugar bowl
Steam condensate and sugar is added；The mechanical stirring device is dissolved into the liquid glucose with lowest speed mechanical stirring, the sugar.
Further, the mechanical stirring device includes stirring motor and blade, and the blade is set in the liquid glucose, institute
State the speed that stirring motor controls the blade rotation.
Further, the frequency of the stirring motor is between 30Hz~50Hz.
Further, the bottom of the sugar bowl is equipped with dirt discharging valve.
Compared with the prior art, hydroxide flake potassium production method provided by the invention has the advantage that
Hydroxide flake potassium production method provided by the invention is stirred continuously liquid glucose by mechanical stirring device, passes through stirring
Motor control stirring frequency, easy to operate, the time is short, stability is good, the liquid glucose will not be layered agglomeration, and the uniformity is high, guarantee
The quality of the hydroxide flake potassium of production, will not change colour, substantially increase the qualification rate of hydroxide flake potassium, decrease behaviour
Make the frequency of personnel's observation, it is time saving and energy saving.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram of the hydroxide flake potassium production system of preferred embodiment provided by the invention；
Fig. 2 is the step flow chart of the production method based on the production system of hydroxide flake potassium shown in Fig. 1.
Appended drawing reference:
1- hydroxide flake potassium production system, 11- lye measuring tank,
The first lye pump of 12-, 13- sugar slot,
131- sugar bowl, 133- mechanical stirring device,
1331- stirring motor, 1333- blade,
14- liquid glucose metering pump, 15- falling liquid film preconcentrator,
The second lye pump of 16-, 17- enrichment facility,
18- flake caustic unit.
Specific embodiment
The present invention provides many applicable creative concepts, which be can be reflected in a large number of on specific
Hereinafter.The specific embodiment described in following embodiments of the present invention is only used as a specific embodiment of the invention
Exemplary illustration, and be not meant to limit the scope of the invention.
The invention will be further described with specific embodiment with reference to the accompanying drawing.
As shown in Figure 1, wherein Fig. 1 is that a kind of hydroxide flake potassium of preferred embodiment provided by the invention produces system
The structural schematic diagram of system.The present embodiment is a kind of hydroxide flake potassium production system 1, the hydroxide flake potassium production system 1
Including lye measuring tank 11, the first lye pump 12, sugared slot 13, liquid glucose metering pump 14, falling liquid film preconcentrator 15, the second lye pump
16, enrichment facility 17 and flake caustic unit 18, the lye measuring tank 11 are connect with first lye pump 12, the sugar slot 13
It is connect with the liquid glucose metering pump 14, the outlet with first lye pump 12 respectively of the arrival end of the falling liquid film preconcentrator 15
End is connected with the outlet end of the liquid glucose metering pump 14 by pipeline, the outlet end of the falling liquid film preconcentrator 15 and described second
Lye pump 16, the enrichment facility 17 and the flake caustic unit 18 pass sequentially through pipeline connection.
The lye measuring tank 11 is equipped with lye, evaporation element of the lye in chlor-alkali production system, at this
In embodiment, the lye is the sodium hydroxide solution of concentration 48%, and in other embodiments, the lye can be according to preamble
Production process difference, be other concentration.
First lye pump 12 is used for the conveying of lye, and lye in the lye measuring tank 11 is delivered to the falling liquid film
Preconcentrator 15.
The sugar slot 13 is equipped with liquid glucose, and the liquid glucose is sugar solution of the concentration between 5%~6.5%, the food
The solvent of sugar juice is steam condensate, and the steam condensate is after the steam or steam that production generates in the process utilize again
Secondary steam, then changed thermogenetic condensate liquid, in the present embodiment, the steam condensate is water, and sugar is white granulated sugar.
The sugar slot 13 includes the sugar bowl 131 equipped with the liquid glucose and the mechanical stirring dress in the sugar bowl 131
133 are set, the mechanical stirring device 133 stirs the liquid glucose, so that the even concentration of the liquid glucose, guarantees the sheet hydrogen of production
The color of potassium oxide is constant, up-to-standard.
The sugar bowl 131 is for containing liquid glucose；The mechanical stirring device 133 is including stirring motor 1331 and by institute
The blade 1333 of the control of stirring motor 1331 is stated, the blade 1333 is set in the liquid glucose, and the stirring motor 1331 controls
The speed that the blade 1333 rotates, the frequency of the stirring motor 1331 is between 30Hz~50Hz.
The bottom of the sugar bowl 13 is additionally provided with dirt discharging valve, checks whether the sugar is completely dissolved by the dirt discharging valve,
The liquid glucose that the dirt discharging valve discharge is touched with hand, if the sugar has been completely dissolved without feeling of grittiness；If there are still feeling of grittiness,
Then the sugar is not yet completely dissolved.
Specifically, the preparation process of the liquid glucose are as follows:
For the sugar bowl 131 after steam condensate cleans up, the secondary steam that 131 liquid level 75% of sugar bowl is added is cold
Lime set；
150 jin of sugar are added in the sugar bowl 131；
Start the stirring motor 1331, the frequency of the stirring motor 1331 is adjusted to minimum, starts to stir；
After being completely dissolved to the sugar, sugar concentration described in analytical sampling；
Sugaring amount is adjusted at any time according to the variation of the whole specific electric load of solid caustic soda.Sugaring formula are as follows:
In formula,
F (SS) --- the flow of liquid glucose, m3/h；
C (SS) --- the concentration of liquid glucose, 5.0~6.5wt%；
P (SS) --- the density of solvent, 1000.0kg/m in liquid glucose；
The quality of m --- sugar, 80.0g/t；
F (KOH) --- the flow of lye, 3.5~8.0m3/h；
C (KOH) --- the concentration of lye, 53.0 ± 0.5wt%；
P (KOH) --- the density of lye, 1514.0kg/m；
F --- the frequency of liquid glucose metering pump, 0-120.0mun/min；
Vstroke --- constant, 0.0120.
According to the formula, the corresponding sugaring amount of solid caustic soda load such as table 1.
1 solid caustic soda load of the table-sugaring amount table of comparisons
Solid caustic soda load variations, corresponding flux of alkaline liquor also change, as shown in table 1, in the feelings of different solid caustic soda loads
Under condition, corresponding sugar amount is added.
In process of production, the mechanical stirring device 133 is for being stirred continuously the liquid glucose, the stirring motor 1331
Stirring frequency is controlled, easy to operate, the time is short, stability is good, the liquid glucose will not be layered agglomeration, and uniformity height ensure that life
The quality of the hydroxide flake potassium of production, will not change colour, and substantially increase the qualification rate of hydroxide flake potassium, decrease operator
The frequency of member's observation, it is time saving and energy saving.
The liquid glucose metering pump 14 is for conveying the liquid glucose, and metering pump is also referred to as constant displacement pump or proportioning pump, and one kind can expire
The various stringent process flows of foot need, flow can within the scope of 0-100% step-less adjustment, for conveying liquid (especially
Corrosive liquids) a kind of special positive displacement pump.The outstanding feature of metering pump is can to keep the constant flow rate unrelated with discharge pressure,
The function of conveying, metering and adjusting can be completed at the same time using metering pump, to simplify the technological process of production.
The concentration of the lye is promoted to 53% from 48% for lye described in pre-concentration by the falling liquid film preconcentrator 15
± 0.5%, in the present embodiment, the concentration of the lye is promoted to 52.7%.
Second lye pump 16 is for conveying lye, and in the present embodiment, concentration is by second lye pump 16
52.7% lye is delivered to the enrichment facility 17, at the same the outlet end of second lye pump 16 simultaneously with the drop
The arrival end of film preconcentrator 15 connects, and a part of lye is delivered to first lye pump 12 and the falling liquid film preconcentrator
Pipeline between 15, for the reflux of pump, conveying ratio is adjusted accordingly according to the pressure of second lye pump 16.
The enrichment facility 17 successively heats the concentration lye by high-temperature molten salt and flash vessel, by the dense of the lye
Degree is concentrated into 95% or more from 52.7%.
The flake caustic unit 18 is used to the lye of 95% or more concentration being prepared into hydroxide flake potassium.
It should be noted that in process of production, periodically carrying out nickel content analysis, and root to the quality of hydroxide flake potassium
Sugaring amount is adjusted according to analysis result, in the present embodiment, nickel content is less than 4ppm in the hydroxide flake potassium, at this time sheet hydrogen
The color of potassium oxide is constant, is qualified product.
As shown in Fig. 2, Fig. 2 is the step flow chart of the production method based on the production system of hydroxide flake potassium shown in Fig. 1.
The hydroxide flake potassium production method the following steps are included:
Step S1, the lye that the described lye measuring tank 11 is 48% ± 0.5% equipped with concentration, the lye pass through described the
One lye pump 12 is delivered to the falling liquid film preconcentrator 15；
Step S2, the liquid glucose that the described sugared slot 13 is 5%~6.5% equipped with concentration, the sugar slot 13 are filled by mechanical stirring
The 133 stirrings liquid glucose is set, so that the even concentration of the liquid glucose, the liquid glucose is delivered to described the by liquid glucose metering pump 14
Pipeline between one lye pump 12 and the falling liquid film preconcentrator 15；
Wherein, the preparation process of the liquid glucose includes:
Be added steam condensate and sugar into the sugar bowl 131, the additional amount of the steam condensate and sugar according to
Predetermined ratio is added；
The mechanical stirring device 133 is dissolved into the liquid glucose with the continuous mechanical stirring of lowest speed, the sugar.
Step S3, the lye that the described 15 pre-concentration concentration of falling liquid film preconcentrator is 48% ± 0.5%, its concentration is mentioned
53.0% ± 0.5% is risen to, the lye after pre-concentration is delivered to the enrichment facility 17 by second lye pump 16,
The pipeline being delivered between first lye pump 12 and the falling liquid film preconcentrator 15 simultaneously, for flowing back；
Step S4, the lye that concentration is 53.0% ± 0.5% is concentrated in the described enrichment facility 17, its concentration is promoted to
95% or more, it is delivered to the flake caustic unit 18；
Step S5, the lye of 95% or more concentration is prepared into hydroxide flake potassium by the described flake caustic unit 18.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and this
Field technical staff can be designed alternative embodiment without departing from the scope of the appended claims.In claim
In, any reference symbol between parentheses should not be configured to limitations on claims.Word "comprising" is not excluded for depositing
In element or step not listed in the claims.
Claims (8)
1. a kind of hydroxide flake potassium production method, which is characterized in that the hydroxide flake potassium production method includes following step
It is rapid:
Step 1: the lye that lye measuring tank (11) is 48% ± 0.5% equipped with concentration, the lye passes through the first lye pump
(12) falling liquid film preconcentrator (15) are delivered to；
Step 2: the liquid glucose that sugared slot (13) is 5%~6.5% equipped with concentration, the sugar slot (13) passes through mechanical stirring device
(133) liquid glucose is stirred, so that the even concentration of the liquid glucose, the liquid glucose is delivered to described by liquid glucose metering pump (14)
Pipeline between first lye pump (12) and the falling liquid film preconcentrator (15)；
Step 3: the lye that falling liquid film preconcentrator (15) the pre-concentration concentration is 48% ± 0.5%, its concentration is promoted
To 53.0% ± 0.5%, the lye after pre-concentration is delivered to enrichment facility (17) by the second lye pump (16)；
Step 4: the lye that enrichment facility (17) the concentration concentration is 53.0% ± 0.5%, its concentration is promoted to
95% or more, it is delivered to flake caustic unit (18)；
Step 5: the lye of 95% or more concentration is prepared into hydroxide flake potassium by the flake caustic unit (18).
2. a kind of hydroxide flake potassium production method according to claim 1, which is characterized in that the step 3 is also wrapped
Include: the lye after pre-concentration passes through second lye pump (16) while being delivered to first lye pump (12) and described
Pipeline between falling liquid film preconcentrator (15), for flowing back.
3. a kind of hydroxide flake potassium production method according to claim 1, which is characterized in that the liquid glucose is concentration Jie
Sugar solution between 5%~6.5%.
4. a kind of hydroxide flake potassium production method according to claim 3, which is characterized in that the sugar solution it is molten
Agent is steam condensate.
5. a kind of hydroxide flake potassium production method according to claim 1, which is characterized in that liquid glucose described in step 2
Preparation process include:
The sugar slot (13) is equipped with sugar bowl (131), and steam condensate and sugar are added into the sugar bowl (131)；
For the mechanical stirring device (133) with lowest speed mechanical stirring, the sugar is dissolved into the liquid glucose.
6. a kind of hydroxide flake potassium production method according to claim 5, which is characterized in that the mechanical stirring device
It (133) include stirring motor (1331) and blade (1333), the blade (1333) is set in the liquid glucose, the stirring motor
(1331) speed of blade (1333) rotation is controlled.
7. a kind of hydroxide flake potassium production method according to claim 6, which is characterized in that the stirring motor
(1331) frequency is between 30Hz~50Hz.
8. a kind of hydroxide flake potassium production method according to claim 5, which is characterized in that the sugar bowl (131)
Bottom is equipped with dirt discharging valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811500312.3A CN109264745A (en) | 2018-12-07 | 2018-12-07 | A kind of hydroxide flake potassium production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811500312.3A CN109264745A (en) | 2018-12-07 | 2018-12-07 | A kind of hydroxide flake potassium production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109264745A true CN109264745A (en) | 2019-01-25 |
Family
ID=65187513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811500312.3A Pending CN109264745A (en) | 2018-12-07 | 2018-12-07 | A kind of hydroxide flake potassium production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109264745A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117602645A (en) * | 2023-12-05 | 2024-02-27 | 江苏奥喜埃化工有限公司 | Production process and system of food-grade potassium hydroxide |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2727102A1 (en) * | 1994-11-21 | 1996-05-24 | Rhone Poulenc Chimie | PROCESS FOR REMOVING METALLIC IMPURITIES BY ELECTROCHEMICAL PATHWAY |
| CN202164130U (en) * | 2011-07-04 | 2012-03-14 | 山东布莱恩化工技术有限公司 | Caustic soda solidifying device for ionic membrane caustic soda production |
| CN102530993A (en) * | 2011-12-29 | 2012-07-04 | 张健 | Device and method for preparing alkali |
| CN102583444A (en) * | 2012-02-07 | 2012-07-18 | 张健 | Alkali-manufacturing device and alkali-manufacturing method for manufacturing alkali in three-section falling film coal burning method |
| CN204022953U (en) * | 2014-08-11 | 2014-12-17 | 江苏理文化工有限公司 | A kind of production equipment of high purity sodium hydroxide |
| CN206108917U (en) * | 2016-10-19 | 2017-04-19 | 上海新增鼎工业科技有限公司 | Concentrated film -making device of potash |
-
2018
- 2018-12-07 CN CN201811500312.3A patent/CN109264745A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2727102A1 (en) * | 1994-11-21 | 1996-05-24 | Rhone Poulenc Chimie | PROCESS FOR REMOVING METALLIC IMPURITIES BY ELECTROCHEMICAL PATHWAY |
| CN202164130U (en) * | 2011-07-04 | 2012-03-14 | 山东布莱恩化工技术有限公司 | Caustic soda solidifying device for ionic membrane caustic soda production |
| CN102530993A (en) * | 2011-12-29 | 2012-07-04 | 张健 | Device and method for preparing alkali |
| CN102583444A (en) * | 2012-02-07 | 2012-07-18 | 张健 | Alkali-manufacturing device and alkali-manufacturing method for manufacturing alkali in three-section falling film coal burning method |
| CN204022953U (en) * | 2014-08-11 | 2014-12-17 | 江苏理文化工有限公司 | A kind of production equipment of high purity sodium hydroxide |
| CN206108917U (en) * | 2016-10-19 | 2017-04-19 | 上海新增鼎工业科技有限公司 | Concentrated film -making device of potash |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117602645A (en) * | 2023-12-05 | 2024-02-27 | 江苏奥喜埃化工有限公司 | Production process and system of food-grade potassium hydroxide |
| CN117602645B (en) * | 2023-12-05 | 2024-05-14 | 江苏奥喜埃化工有限公司 | Production process and system of food-grade potassium hydroxide |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110106497A (en) | Chemical plating automatic liquid supply method | |
| CN209259708U (en) | A kind of hydroxide flake potassium production system | |
| CN109264745A (en) | A kind of hydroxide flake potassium production method | |
| CN106831334A (en) | A kind of continuous production processes of alkaline process petrohol potassium | |
| CN108946684A (en) | The method of Waste Sulfuric Acid removing free chlorine in a kind of production of chlorine industry | |
| CN115872362A (en) | Method for continuously preparing high-purity sodium hypochlorite | |
| CN107814395A (en) | A kind of cyanamide production technology | |
| CN110510583B (en) | Production method of sodium hydrosulfite | |
| CN218674921U (en) | Portable measuring device of pH and solid content in precursor synthesis process | |
| CN101648872A (en) | Preparation method of triethylamine hydrogen fluoride complex | |
| CN209276535U (en) | A fully automatic enzymatic conversion equipment | |
| CN211070082U (en) | Polycarboxylate water reducing agent mother liquor synthesizer | |
| CN108611378A (en) | A kind of continuous cooling rapid crystallization method of calcium gluconate | |
| CN203474479U (en) | Device for preparing sodium thiocyanate from coking ammonium thiocyanate | |
| CN218115607U (en) | Recycling system of caustic soda evaporation condensate water | |
| CN111111593A (en) | Preparation equipment and preparation method of ternary precursor material | |
| CN102849777A (en) | Production process of active copper oxide | |
| CN106966421B (en) | Medicinal barium sulfate automatically controls production technology | |
| CN106044723B (en) | The method for removing free chlorine in the Waste Sulfuric Acid that dry chlorine process generates | |
| CN110244781A (en) | A kind of chemical plating automatic liquid supply method and its system | |
| CN220990715U (en) | Soda ash pressing and leaching device for producing lithium carbonate | |
| CN212975068U (en) | Pharmaceutical device | |
| CN104192864B (en) | The preparation facilities of ammonium bifluoride with high purity and preparation method | |
| CN211537690U (en) | Gas-liquid intermittent reaction device | |
| CN218012756U (en) | 2-ethyl anthraquinone production system capable of reducing dissolution closed-loop acid consumption |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190125 |