CN109264762A - A kind of native sulfate of barium method of purification and equipment - Google Patents
A kind of native sulfate of barium method of purification and equipment Download PDFInfo
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- CN109264762A CN109264762A CN201811334261.1A CN201811334261A CN109264762A CN 109264762 A CN109264762 A CN 109264762A CN 201811334261 A CN201811334261 A CN 201811334261A CN 109264762 A CN109264762 A CN 109264762A
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- barium
- native sulfate
- sulfate
- hydrochloric acid
- raw material
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- 229910052788 barium Inorganic materials 0.000 title claims abstract description 88
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 title claims abstract description 88
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000000746 purification Methods 0.000 title claims abstract description 36
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 79
- 239000012535 impurity Substances 0.000 claims abstract description 47
- 239000002994 raw material Substances 0.000 claims abstract description 46
- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000005406 washing Methods 0.000 claims description 39
- 238000003825 pressing Methods 0.000 claims description 34
- 238000002386 leaching Methods 0.000 claims description 20
- 238000000227 grinding Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 13
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 9
- 239000008139 complexing agent Substances 0.000 claims description 9
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 8
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 8
- 239000003546 flue gas Substances 0.000 claims description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000011780 sodium chloride Substances 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 5
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 4
- 239000011668 ascorbic acid Substances 0.000 claims description 4
- 229960005070 ascorbic acid Drugs 0.000 claims description 4
- 235000010323 ascorbic acid Nutrition 0.000 claims description 4
- 238000001354 calcination Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000001103 potassium chloride Substances 0.000 claims description 4
- 235000011164 potassium chloride Nutrition 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 239000005864 Sulphur Substances 0.000 claims description 3
- 235000015165 citric acid Nutrition 0.000 claims description 3
- 235000006408 oxalic acid Nutrition 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000000536 complexating effect Effects 0.000 claims 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 abstract description 30
- 229910052601 baryte Inorganic materials 0.000 abstract description 7
- 239000010428 baryte Substances 0.000 abstract description 7
- 238000010924 continuous production Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 17
- 229910052742 iron Inorganic materials 0.000 description 10
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 9
- 239000011575 calcium Substances 0.000 description 9
- 229910052791 calcium Inorganic materials 0.000 description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 7
- 239000002253 acid Substances 0.000 description 7
- 239000011777 magnesium Substances 0.000 description 7
- 229910052749 magnesium Inorganic materials 0.000 description 7
- 239000010936 titanium Substances 0.000 description 7
- 229910052719 titanium Inorganic materials 0.000 description 7
- 238000001035 drying Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000000945 filler Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 150000003841 chloride salts Chemical class 0.000 description 3
- 238000005660 chlorination reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- -1 papermaking Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
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
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- 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
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
This application discloses a kind of native sulfate of barium methods of purification, comprising the following steps: villaumite a, is added into native sulfate of barium raw material, mixes, then roasting cools down；B, roasting material after cooling second is crushed, is washed, hydrochloric acid reaction is added, filters, rinses, dry, depolymerization obtains finished product native sulfate of barium.The application also provides a kind of equipment for above-mentioned method of purification.Native sulfate of barium method of purification provided by the present application, it can remove the impurity component in native sulfate of barium, improve purity, purify the whiteness and purity is high of obtained finished product native sulfate of barium, processing is brightened in the purification for being particularly suitable for the barite raw material of native sulfate of barium of the whiteness greater than 50 and barium sulfate content greater than 75%.Equipment provided by the present application is suitable for industrializing continuous production.
Description
Technical field
This application involves chemical process and equipment technical fields, more particularly to a kind of native sulfate of barium method of purification and set
It is standby.
Background technique
Barite is with barium sulfate (BaSO4) nonmetallic minerals as main component, it is pure barite whitening color, glossy,
But since grey, light red, light brown, light yellow etc. can be also presented in the mixed influence of the impurity such as iron, titanium.The Mohs of barite is hard
Moderate, chemical property stabilization is spent, there is extensive use in multiple fields such as chemical industry, medicine, papermaking, plastics industries.
The impurity and associated minerals contained in barite (i.e. native sulfate of barium) directly affects its utility value industrially,
It needs to carry out purification processes to it.And impurity usually has color, influences the whiteness of native sulfate of barium, therefore, whiteness is natural
One of the important indicator of barium sulfate grade.
How native sulfate of barium is carried out brightening purification processes, obtains the high product of purity is high, whiteness, be art technology
Personnel's technical problem urgently to be resolved.
Summary of the invention
In order to solve the above technical problems, the first purpose of this invention is to provide a kind of native sulfate of barium method of purification；This
Second purpose of invention is to provide a kind of equipment for above-mentioned method of purification；Native sulfate of barium purification side provided by the present application
Method can remove the impurity component in native sulfate of barium, and the whiteness and purity is high of the finished product native sulfate of barium purified are especially suitable
Processing is brightened in purification for native sulfate of barium.Equipment provided by the present application is suitable for industrializing continuous production.
Technical solution provided by the invention is as follows:
A kind of native sulfate of barium method of purification, comprising the following steps:
A, villaumite is added into native sulfate of barium raw material, mixes, then roasting cools down；
B, roasting material after cooling second is crushed, is washed, hydrochloric acid reaction is added, filters, rinses, dry, depolymerization obtains
Finished product native sulfate of barium.
Preferably, the villaumite is specially sodium chloride, any one in potassium chloride；The quality of villaumite used is natural sulphur
The 40%-60% of impurity quality in sour barium raw material；And/or
The maturing temperature is 600-780 DEG C, calcining time 1.5-2.5h.
Preferably, in the step a, native sulfate of barium raw material first is crushed to 200-325 mesh and is used；And/or
In the step b, second is crushed to roasting material partial size as 200-325 mesh.
Preferably, in the step b, the mole of hydrochloric acid used is that impurity needs sour mole in native sulfate of barium raw material
1.0-1.2 again；And/or
After hydrochloric acid is added, the insulation reaction 2-2.5h at 60-70 DEG C.
Preferably, after hydrochloric acid insulation reaction 1.5-2h is added, complexing agent is added and continues insulation reaction 0.5-1h, the network
Mixture is specially oxalic acid, citric acid, ascorbic acid, any one or more in EDTA.
Preferably, it in the step b, washes 2-4 times, hydrochloric acid reaction is then added；And/or
Filters pressing is carried out after washing every time, enters back into and washes next time.
Preferably, in the step b, filtering is specially filters pressing；And/or
Rinsing 2-4 times carries out filters pressing after rinsing every time, enters back into and rinse next time.
Preferably, in the step b, it is 2-2.5 μm that the roasting material third after washing, which is crushed to D97, is then added
Hydrochloric acid reaction.
A kind of equipment for method of purification described in any of the above embodiments, including calciner, the crushing dress being sequentially connected
It sets, water washing device, leaching device, filters pressing rinsing combination unit, dry depolymerizer, the calciner is used for puritan filler
Barium raw material and villaumite mixing are roasted, and the calciner is additionally provided with flue gas recovery device, and the leaching device is for roasting
Material and hydrochloric acid are reacted, and the filters pressing rinsing combination unit specifically includes filter-pressing device and rinsing device, the filters pressing rinsing
Combination unit is equipped with 2-4 group.
Preferably, further include grinding device, grinding device setting the water washing device and the leaching device it
Between.
The application provides a kind of native sulfate of barium method of purification, comprising the following steps: a, adds into native sulfate of barium raw material
Enter villaumite, mix, then roasting cools down；B, roasting material after cooling second is crushed, is washed, hydrochloric acid reaction is added, filters,
Rinsing, dry, depolymerization obtains finished product native sulfate of barium.Native sulfate of barium method of purification provided by the present application, chlorination salt is roasted
The mode that burning, acid adding leach is used in combination, and can remove the impurity such as iron, titanium, silicon, calcium, the magnesium in native sulfate of barium raw material, especially
Purification suitable for native sulfate of barium raw material.Meanwhile except impurity such as de-iron, titanium, silicon, calcium, magnesium, native sulfate of barium is also just eliminated
Coloring matter in raw material can be improved the whiteness and purity of gained finished product native sulfate of barium.In general, provided by the present application natural
Barium sulfate method of purification, the weight of barium sulfate raw material and barium sulfate content more than or equal to 75% suitable for whiteness greater than 50 are brilliant
The purification of stone.And when barium sulfate content is less than 75% in barite, use native sulfate of barium method of purification provided by the present application
Removal of impurities cost is higher, after can first passing through gravity separation method or floatation removal of impurities, reuses native sulfate of barium purification provided by the present application
Method is further purified.
Equipment provided by the present application is suitable for industrializing continuous production.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the overall structure diagram of native sulfate of barium equipment for purifying in the embodiment of the present invention；
Fig. 2 is the part-structure enlarged diagram of native sulfate of barium equipment for purifying in the embodiment of the present invention (from calciner
To water washing device)；
Fig. 3 is the part-structure enlarged diagram of native sulfate of barium equipment for purifying in the embodiment of the present invention (from leaching device
To rinsing device, grinding device is arranged before leaching device)；
Fig. 4 is part-structure enlarged diagram (the dry depolymerization dress of native sulfate of barium equipment for purifying in the embodiment of the present invention
It sets)；
Appended drawing reference: 1- calciner；11- flue gas processing device；2- grinding device；3- water washing device；4- leaching device；
5- filter-pressing device；6- rinsing device；7- dries depolymerizer；8- grinding device；A1- native sulfate of barium raw material storage arrangement；a2-
Alkali storage arrangement；A3- metering device；B- elevator；C- powder collecting device；7a- drying machine；7b- collar vortex mill.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The application protection all should belong in technical staff's every other embodiment obtained without making creative work
Range.
Please be as shown in Figures 1 to 4, the embodiment of the present invention provides a kind of native sulfate of barium method of purification, comprising the following steps:
A, villaumite is added into native sulfate of barium raw material, mixes, then roasting cools down；
B, roasting material after cooling second is crushed, is washed, hydrochloric acid reaction is added, filters, rinses, dry, depolymerization obtains
Finished product native sulfate of barium.
The application provides a kind of native sulfate of barium method of purification, comprising the following steps: a, adds into native sulfate of barium raw material
Enter villaumite, mix, then roasting cools down；B, roasting material after cooling second is crushed, is washed, hydrochloric acid reaction is added, filters,
Rinsing, dry, depolymerization obtains finished product native sulfate of barium.Native sulfate of barium method of purification provided by the present application, chlorination salt is roasted
The mode that burning, acid adding leach is used in combination, and can remove the impurity such as iron, titanium, silicon, calcium, the magnesium in native sulfate of barium raw material, especially
Purification suitable for native sulfate of barium raw material.Meanwhile except impurity such as de-iron, titanium, silicon, calcium, magnesium, native sulfate of barium is also just eliminated
Coloring matter in raw material can be improved the whiteness and purity of gained finished product native sulfate of barium.In general, provided by the present application natural
Barium sulfate method of purification, the weight of barium sulfate raw material and barium sulfate content more than or equal to 75% suitable for whiteness greater than 50 are brilliant
The purification of stone.And when barium sulfate content is less than 75% in barite, use native sulfate of barium method of purification provided by the present application
Removal of impurities cost is higher, after can first passing through gravity separation method or floatation removal of impurities, reuses native sulfate of barium purification provided by the present application
Method is further purified.
Preferably, the villaumite is specially sodium chloride, any one in potassium chloride；The quality of villaumite used is natural sulphur
The 40%-60% of impurity quality in sour barium raw material；And/or
The maturing temperature is 600-780 DEG C, calcining time 1.5-2.5h.
In native sulfate of barium method of purification provided by the present application, the villaumite is specially sodium chloride, any in potassium chloride
It is a kind of.Villaumite is reacted with impurity such as iron, titanium, calcium, magnesium in native sulfate of barium raw material at high temperature, chloride is generated, through washing
Removal of impurities and the removal of impurities of subsequent HCl treatment.From the cost consideration of industrial application, usual multiselect sodium chloride.
The quality of villaumite used is the 40%-60% of impurity quality in native sulfate of barium raw material, in native sulfate of barium raw material
The amount of impurity can carry out detection determination by extracting sample, and then according to the quality of impurity, 40%-60% villaumite is added, mixes
It is even to be roasted.For example, determining through detection, when impurity content is 10% in native sulfate of barium raw material, addition quality is impurity matter
The sodium chloride of amount 40% is roasted.The effect for adding chloride salt baking to clean is good, effectively can convert chlorination for impurity such as iron, titaniums
Object avoids direct acid adding ferriferous oxide or the nonreactive problem of titanium oxide.
In native sulfate of barium method of purification provided by the present application, the maturing temperature is 600-780 DEG C, and calcining time is
1.5-2.5h.The impurity such as iron, titanium, calcium, magnesium can sufficiently be reacted at 600-780 DEG C.Lower than 600 DEG C then reaction time of maturing temperature
Long low efficiency, and maturing temperature is higher than 780 DEG C, certain inert elements can also react, and influence finished product native sulfate of barium instead
Whiteness.
Preferably, in the step a, native sulfate of barium raw material first is crushed to 200-325 mesh and is used；And/or
In the step b, second is crushed to roasting material partial size as 200-325 mesh.
Preferably, native sulfate of barium raw material, before adding chloride salt baking, first is crushed to 200-325 mesh, it is conducive to and powder
The villaumite of shape is uniformly mixed, while being also conducive to roasting process thermally equivalent, being conducive to impurity reaction.
And after baking, being crushed to roasting material partial size to roasting material cooling and then by second is 200-325 mesh, can
To prevent the roasting material to agglomerate after roasting to be directly entered water-washing step, the roasting material of agglomeration is not easy to impurity dissolution, while also shadow
Ring washing efficiency and water washing effect.
Preferably, in the step b, the mole of hydrochloric acid used is that impurity needs sour mole in native sulfate of barium raw material
1.0-1.2 again；And/or
After hydrochloric acid is added, the insulation reaction 2-2.5h at 60-70 DEG C.
It is to react still remaining impurity after removing plus chloride salt baking washing that hydrochloric acid, which is added,.In the application, hydrochloric acid used
Mole be according to by roasting, washing after raw material in still remaining impurity reacted, it is required acid mole carry out
It calculates, the amount of impurity can be obtained by detection, can also pass through the amount of impurity in the native sulfate of barium raw material that most starts, warp
Theoretical residual after roasting washing measures.Need sour mole different and different according to the type of impurity, such as calcium ion is two
Valence, then the need acid amount containing calcium impurities is twice of the mole containing calcium impurities.After the usage amount of hydrochloric acid is slightly above washed in raw material
The sour mole of impurity need, usually 1.0-1.2 times.
After hydrochloric acid is added, insulation reaction 2-2.5h at 60-70 DEG C is heated the mixture to.The insulation reaction at 60-70 DEG C
It can effectively accelerating impurity and hydrochloric acid react, improve reaction efficiency.
Preferably, after hydrochloric acid insulation reaction 1.5-2h is added, complexing agent is added and continues insulation reaction 0.5-1h, the network
Mixture is specially oxalic acid, citric acid, ascorbic acid, any one or more in EDTA.
It is further preferred that in the last 0.5-1h (preferably last 0.5h) that hydrochloric acid insulation reaction is added, the addition of complexing agent
Amount, according to how much determinations of impurity iron content.The additional amount of complexing agent is no more than 2 ‰ in general native sulfate of barium per ton.It is added
Complexing agent continues insulation reaction, and the impurity such as iron ion are changed into complex compound, into water, are removed through subsequent filter rinse step
It goes.Since complexing agent reacts comparatively fast with impurity element, complexing agent should not be added too early.Complexing agent used herein is specially grass
Acid, citric acid, ascorbic acid, any one or more in EDTA.
Preferably, it in the step b, washes 2-4 times, hydrochloric acid reaction is then added；And/or
Filters pressing is carried out after washing every time, enters back into and washes next time.
Water-washing process is to prepare to remove partial impurities for subsequent salt Ore Leaching.For example, the impurity such as calcium, magnesium are through roasting
It is converted into calcium oxide, magnesia, calcium chloride, magnesium chloride after burning, part is removed by water-washing process.Washing 2-4 time, it is each between
Last water for cleaning is removed by filtering (such as filters pressing) step, then carries out water-washing step next time, enters back into salt acidleach
Out the step of.
Preferably, in the step b, filtering is specially filters pressing；And/or
Rinsing 2-4 times carries out filters pressing after rinsing every time, enters back into and rinse next time.
It is preferred that being separated by solid-liquid separation using filters pressing.Certain pressure is applied to raw material slurry by filter-pressing device, accelerates liquid
Exudation improves filter efficiency, is convenient for industrialized production progress.
It is preferred that filtered raw material rinses 2-4 times, more preferable 3 times, the rinsings such as hydrochloric acid, impurity are removed.Rinse it every time
Between, it is separated by solid-liquid separation using the method for filters pressing.
Preferably, in the step b, it is 2-2.5 μm that the roasting material third after washing, which is crushed to D97, is then added
Hydrochloric acid reaction.
Preferably, it is 2-2.5 μm that roasting material third, which is crushed to D97, after washing, hydrochloric acid reaction is then added.
D97 is 2-2.5 μm and refers to the smashed puritan filler barium dust of third, and 97% can cross 2 μm to 2.5 μm of sieve.After washing
Native sulfate of barium third be crushed to D97 be 2-2.5 μm after, wrapped up when roasting material is crushed to 200-325 mesh through second
Partial impurities release, and are more favorable for the progress of acidleach, and are conducive to its application industrially, such as rubber additive,
Oil paint additive etc..The smashed native sulfate of barium of third, through reacting, filtering with hydrochloric acid, rinse, after baking step, it may occur that
Agglomeration, at this time through depolymehzation step (the puritan filler barium dust reunited disperses again after i.e. by mechanical equipment by drying),
The partial size that D97 is 2-2.5 μm can be restored to.Finished product puritan filler barium dust after depolymerization can directly pack sale, can also
Sale is packed again after needing modified processing according to client.
A kind of equipment for method of purification described in any of the above embodiments, including calciner 1, the crushing dress being sequentially connected
2, water washing device 3, leaching device 4, filters pressing rinsing combination unit, dry depolymerizer 7 are set, the calciner 1 is used for day
Right barium sulfate raw material and villaumite mixing are roasted, and the calciner 1 is additionally provided with flue gas recovery device 11, the leaching device
4 are reacted for roasting material and hydrochloric acid, and the filters pressing rinsing combination unit specifically includes filter-pressing device 5 and rinsing device 6, institute
It states filters pressing rinsing combination unit and is equipped with 2-4 group.
The application also provides a kind of equipment for method of purification described in any of the above embodiments, including the roasting being sequentially connected
Device 1, grinding device 2, water washing device 3, leaching device 4, filters pressing rinsing combination unit, dry depolymerizer 7, the roasting dress
1 is set for roasting to native sulfate of barium raw material and villaumite mixing, the calciner 1 is additionally provided with flue gas recovery device 11,
The leaching device 4 is reacted for roasting material and hydrochloric acid, and the filters pressing rinsing combination unit specifically includes 5 He of filter-pressing device
Rinsing device 6, the filters pressing rinsing combination unit are equipped with 2-4 group.Equipment provided by the present application is suitable for industrializing continuous life
It produces.
In equipment provided by the present application, each device is sequentially communicated, and native sulfate of barium raw material enters the roasting of calciner 1, together
The flue gas that Shi Fanying is generated is collected by flue gas recovery device 11；Then enter grinding device 2 by 1 discharge port of calciner to crush,
Smashed roasting material, which enters in water washing device 3, to be washed, and is entered back into leaching device 4 and is reacted with hydrochloric acid, enters after reaction
Filters pressing rinsing combination unit 5 filters pressing of filter-pressing device, enters back into rinsing device 6 and rinses, and rinses combination unit setting according to filters pressing
Quantity into drying and depolymerization in dry depolymerizer 7, obtain through primary or for several times after filters pressing-rinsing-filters pressing-rinse cycle
To finished product puritan filler barium dust.
Wherein, calciner 1 is preferably rotary kiln, and rotary kiln itself includes rotary kiln body, preheater, cooler, can be
The mixture of native sulfate of barium raw material and villaumite is sufficiently stirred and is roasted within the scope of set temperature, meanwhile, roasting finishes
Roasting material after cooler is cooling, into being crushed in grinding device 2.The roasting material that calciner 1 comes out, can be with boosted machine
In b feeding grinding device 2 (as shown in Figure 1 and Figure 2).Grinding device 2 can be pulverizer or beat grinding machine, and powder collection is arranged
Device c (as shown in Figure 1 and Figure 2) is collected through the second smashed roasting material, and in batches of feeding water washing device 3 and is carried out water
It washes.Water washing device 3 is preferably washed agitator or washing agitator tank and be can be set according to the amount of raw material and washing parameter request
2-4 group filter press and washing agitator or washing agitator tank complete water-washing process.After raw material after washing is separated by filtration liquid,
Into in leaching device 4, reacted with a certain amount of hydrochloric acid.It can be arranged in leaching device 4 and quantitatively add mechanism, and be connected to salt
The storage tank of acid realizes the automatic ration addition in hydrochloric acid；Leaching device 4 should also be equipped with heating mechanism, so that raw material and hydrochloric acid
Reaction setting at a temperature of carry out.Dry depolymerizer 7 can be the device for integrating dry depolymerization, such as honeycomb
Mill, while heated-air drying native sulfate of barium, breaks up depolymerization for native sulfate of barium by blade or blade, comes back to D97
For 2-2.5 μm of granularity.Dry depolymerizer 7 is also possible to separated drying device and depolymerizer, for example, using drying machine
(drying machine 7a shown in Fig. 1, Fig. 4) will native sulfate of barium it is dry after, be re-fed into depolymerizer (such as whirlpool shown in Fig. 1, Fig. 4
Ring grinds 7b) it carries out breaing up disaggregation processing.
Before calciner, native sulfate of barium raw material storage arrangement a1, villaumite storage arrangement a2, metering dress can be set
A3 (as shown in Figure 1 and Figure 2) is set, native sulfate of barium raw material is measured respectively with villaumite, and mixes to be sent into calciner 1 and carry out
Roasting.
It preferably, further include grinding device 8, the grinding device 8 is arranged in the water washing device 3 and the leaching device
Between 4.
It is also preferable to include grinding device 8, grinding device 8 is arranged between the water washing device 3 and the leaching device 4,
It is 2-2.5 microns that native sulfate of barium, which is first ground to D97, before hydrochloric acid reaction.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of native sulfate of barium method of purification, which comprises the following steps:
A, villaumite is added into native sulfate of barium raw material, mixes, then roasting cools down；
B, roasting material after cooling second is crushed, is washed, hydrochloric acid reaction is added, filters, rinses, dry, depolymerization obtains finished product
Native sulfate of barium.
2. the method according to claim 1, wherein the villaumite be specially sodium chloride, it is any in potassium chloride
It is a kind of；The quality of villaumite used is the 40%-60% of impurity quality in native sulfate of barium raw material；And/or
The maturing temperature is 600-780 DEG C, calcining time 1.5-2.5h.
3. the method according to claim 1, wherein native sulfate of barium raw material first is crushed in the step a
It is used to 200-325 mesh；And/or
In the step b, second is crushed to roasting material partial size as 200-325 mesh.
4. the method according to claim 1, wherein the mole of hydrochloric acid used is natural sulphur in the step b
Impurity needs 1.0-1.2 times of sour mole in sour barium raw material；And/or
After hydrochloric acid is added, the insulation reaction 2-2.5h at 60-70 DEG C.
5. according to the method described in claim 4, it is characterized in that, complexing is added after hydrochloric acid insulation reaction 1.5-2h is added
Agent continues insulation reaction 0.5-1h, the complexing agent be specially oxalic acid, citric acid, ascorbic acid, in EDTA any one or
It is a variety of.
6. the method according to claim 1, wherein washing 2-4 times in the step b, it is anti-that hydrochloric acid being then added
It answers；And/or
Filters pressing is carried out after washing every time, enters back into and washes next time.
7. the method according to claim 1, wherein filtering is specially filters pressing in the step b；And/or
Rinsing 2-4 times carries out filters pressing after rinsing every time, enters back into and rinse next time.
8. method according to any one of claims 1-7, which is characterized in that in the step b, by the roasting after washing
It is 2-2.5 μm that material third, which is crushed to D97, then adds hydrochloric acid reaction.
9. a kind of equipment for method of purification of any of claims 1-8, which is characterized in that including being sequentially connected
Calciner (1), grinding device (2), water washing device (3), leaching device (4), filters pressing rinsing combination unit, dry depolymerization dress
It sets (7), the calciner (1) is used to roast native sulfate of barium raw material and villaumite mixing, and the calciner (1) is also
Equipped with flue gas recovery device (11), the leaching device (4) is reacted for roasting material and hydrochloric acid, the filters pressing rinsing combination
Device specifically includes filter-pressing device (5) and rinsing device (6), and the filters pressing rinsing combination unit is equipped with 2-4 group.
10. equipment according to claim 9, which is characterized in that further include grinding device (8), the grinding device (8) sets
It sets between the water washing device (3) and the leaching device (4).
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| CN112850771A (en) * | 2021-01-23 | 2021-05-28 | 湖南华中矿业有限公司 | Purification and whitening processing technology and processing system for barite ore powder |
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