CN102167383A - Method for preparing ordinary barium sulfate by using barium sulfide waste residue to co-produce soda sulfide and industrial salt - Google Patents
Method for preparing ordinary barium sulfate by using barium sulfide waste residue to co-produce soda sulfide and industrial salt Download PDFInfo
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- CN102167383A CN102167383A CN 201010561887 CN201010561887A CN102167383A CN 102167383 A CN102167383 A CN 102167383A CN 201010561887 CN201010561887 CN 201010561887 CN 201010561887 A CN201010561887 A CN 201010561887A CN 102167383 A CN102167383 A CN 102167383A
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- barium
- sulfide
- waste residue
- sodium
- barium sulfate
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- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 title claims abstract description 96
- CJDPJFRMHVXWPT-UHFFFAOYSA-N barium sulfide Chemical compound [S-2].[Ba+2] CJDPJFRMHVXWPT-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000002699 waste material Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 25
- 150000003839 salts Chemical class 0.000 title claims abstract description 12
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 title claims description 25
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 title 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 30
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims abstract description 26
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 claims abstract description 23
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910001626 barium chloride Inorganic materials 0.000 claims abstract description 20
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 239000011780 sodium chloride Substances 0.000 claims abstract description 15
- 239000000047 product Substances 0.000 claims abstract description 14
- 239000013078 crystal Substances 0.000 claims abstract description 12
- 229910052788 barium Inorganic materials 0.000 claims abstract description 11
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims abstract description 11
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 6
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 6
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 6
- 229910052979 sodium sulfide Inorganic materials 0.000 claims abstract description 5
- 239000002244 precipitate Substances 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 229940045511 barium chloride Drugs 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 12
- 235000011089 carbon dioxide Nutrition 0.000 claims description 12
- 235000017550 sodium carbonate Nutrition 0.000 claims description 12
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 11
- 230000007797 corrosion Effects 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 9
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 claims description 8
- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 claims description 8
- WBZKQQHYRPRKNJ-UHFFFAOYSA-L disulfite Chemical compound [O-]S(=O)S([O-])(=O)=O WBZKQQHYRPRKNJ-UHFFFAOYSA-L 0.000 claims description 8
- 239000012065 filter cake Substances 0.000 claims description 8
- 238000001556 precipitation Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007795 chemical reaction product Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 5
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 239000012141 concentrate Substances 0.000 claims description 4
- 238000004821 distillation Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 abstract description 4
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 12
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 8
- 238000001914 filtration Methods 0.000 description 5
- 239000011575 calcium Substances 0.000 description 4
- 235000010265 sodium sulphite Nutrition 0.000 description 4
- UBXAKNTVXQMEAG-UHFFFAOYSA-L strontium sulfate Chemical compound [Sr+2].[O-]S([O-])(=O)=O UBXAKNTVXQMEAG-UHFFFAOYSA-L 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- MVXMNHYVCLMLDD-UHFFFAOYSA-N 4-methoxynaphthalene-1-carbaldehyde Chemical compound C1=CC=C2C(OC)=CC=C(C=O)C2=C1 MVXMNHYVCLMLDD-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- LBVNUQQORDPZCR-UHFFFAOYSA-N calcium;sulfane Chemical compound S.[Ca] LBVNUQQORDPZCR-UHFFFAOYSA-N 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 229910001631 strontium chloride Inorganic materials 0.000 description 1
- AHBGXTDRMVNFER-UHFFFAOYSA-L strontium dichloride Chemical compound [Cl-].[Cl-].[Sr+2] AHBGXTDRMVNFER-UHFFFAOYSA-L 0.000 description 1
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a method for preparing common barium sulfate and co-producing sodium sulfide and industrial salt by using barium sulfide waste residue, which uses hydrochloric acid to convert barium in the barium sulfide waste residue into barium chloride and release hydrogen sulfide gas, and the barium chloride reacts with sodium sulfate to obtain a mixture of common crystal barium sulfate precipitate and sodium chloride solution, and the mixture is filtered to obtain a common barium sulfate product and a sodium chloride solution.
Description
Technical field
The present invention relates to the disposal of three wastes of inorganic chemical industry thiocarbamide manufacturing and utilize technical field, especially prepare the method for common barium sulfate and co-produced Sodium Sulphide and Industrial Salt with barium sulfide waste residue.
Background technology
The production method of thiocarbamide is a lot, wherein traditional method is to utilize barium sulphide and sulfuric acid reaction to generate hydrogen sulfide and barium sulfate precipitate, hydrogen sulfide absorbs through the milk of lime negative pressure and makes the hydrogen sulfide calcium solution, then react with calcium cyanamide again, the mol ratio of calcium sulfhydrate and calcium cyanamide is 1: 5, under constantly stirring, temperature of reaction is (80 ± 5) ℃, reaction times is 3h, through negative pressure filtration, can generate thiocarbamide liquid, again through evaporation, filtration, cooling, crystallization, promptly get the crystal thiocarbamide, centrifugal drying gets product.Reaction equation is as follows:
BaS+H
2SO
4→BaSO
4↓+H
2S↑
2H
2S+Ca(OH)
2→Ca(SH)
2+2H
2O
2CaCN
2+Ca(SH
2)
2+6H
2O→2(NH
2)
2CS+3Ca(OH)
2
Aforesaid method is produced thiocarbamide, and its main industrial residue is exactly the barium sulfate waste residue, and according to one's analysis, one ton of thiocarbamide of every production will produce 9.5 tons barium sulfide waste residue, discovers, also contains a large amount of barium sulphides and Preparation of Metallic Strontium in the barium sulfate waste residue.
If with the above-mentioned barium sulfate waste residue of hydrochloric acid purifying, then not only can all take off insoluble impurity, can also form solution such as more purified bariumchloride and strontium chloride.Based on this discovery, the applicant has explored the method for preparing common barium sulfate and co-produced Strontium Sulphate and Sodium Sulphide with barium sulfide waste residue through the experiment and the research of science.
Summary of the invention
The objective of the invention is to, the method for preparing common barium sulfate and co-produced Sodium Sulphide and Industrial Salt with barium sulfide waste residue is provided, this method with hydrochloric acid with the barium in the barium sulfide waste residue be converted into bariumchloride and and discharge hydrogen sulfide, and bariumchloride is after tensio-active agent is handled, react with sodium sulfate again, obtain the mixture of common crystal barium sulfate precipitate and sodium chloride solution, filter, promptly get common barium sulfate product and sodium chloride solution, this method is simple to operate, facility investment is few, and the effective constituent in the barium sulfide waste residue is converted into industrial utilizable material, is an economic and practical method.
Technical scheme of the present invention is as follows: barium sulfide waste residue prepares the method for common barium sulfate and co-produced Sodium Sulphide and Industrial Salt, comprises following concrete steps:
Steps A: the molar content of barium in the conversion barium sulfide waste residue, and configuration barium sulfide waste residue suspension liquid;
Step B: is 1: 1.6～2.4 successively to drop into first corrosion-resistant reactor (1) lining with barium sulfide waste residue suspension liquid and hydrochloric acid according to the ratio of the molar content of barium and the molar weight of hydrogenchloride, under stirring slowly, carry out chemical reaction, generate bariumchloride precipitation and hydrogen sulfide;
Step C: after treating that hydrogen sulfide is overflowed, step B gained reaction product is filtered through first strainer (2), remove insoluble impurities, obtain the clarifying solution that contains bariumchloride;
Step D: preparation metabisulfite solution, according to the ratio of the molar weight of the molar weight of bariumchloride and sodium sulfate is 1: 0.8～1.2 the solution that contains bariumchloride of step C gained and metabisulfite solution sent in the reactor (3) to carry out chemical reaction, obtains the mixture of barium sulfate precipitate and sodium chloride solution;
Step e: with the mixture of step D gained barium sulfate-containing precipitation and sodium chloride solution through second strainer (4) filtration, filter barium sulfate-containing filter cake and sodium chloride solution;
Step F: the barium sulfate-containing filter cake of step e gained is washed through first washing machine (5), first moisture eliminator (6) drying, first pulverizer (7) is pulverized, and obtains barium sulfate product (8);
Step G: the hydrogen sulfide of step B gained is fed surplus the 3rd corrosion-resistant reactor (9) lining that soda ash solution is arranged, and the mol ratio of maintenance hydrogen sulfide and yellow soda ash is 1: 0.8～1.2, under the stirring slowly, hydrogen sulfide and yellow soda ash reaction generate the mixture of Containing Sulfur sodium, carbonic acid gas and water;
Step H: after the mixture of step G gained Containing Sulfur sodium, carbonic acid gas and water treated that carbonic acid gas is overflowed, concentrate with distiller (10) distillation, when liquid reaches capacity, cooling again, separate out sodium sulfide crystal this moment, filter, promptly get Sodium Sulphide crystal product (12) through the 3rd strainer (11).
Buried or the burning of step C gained insoluble impurities.
The related chemical principle of the application is:
BaS+2HCl＝＝＝＝＝BaCl
2+H
2S
BaCl
2+Na
2SO
4＝＝＝＝＝BaSO
4+2NaCl
H
2S+Na
2CO
3＝＝＝＝＝Na
2S+CO
2+H
2O
Beneficial effect of the present invention is: barium sulfide waste residue of the present invention prepares the method for common barium sulfate and co-produced sodium sulphite and Industrial Salt, through the chemical reaction between the compound, utilize the difference of compound dissolution character, pass through filtering separation, can realize that this method is simple to operate, facility investment is few, and the effective constituent in the barium sulfide waste residue is converted into industrial utilizable material, be an economic and practical method.
Description of drawings
Fig. 1 is the process flow sheet that barium sulfide waste residue of the present invention prepares the method for common barium sulfate and co-produced Strontium Sulphate, wherein, and (1) first corrosion-resistant reactor, (2) first strainers filter, (3) reactor, (4) second strainers, (5) first washing machines, (6) first moisture eliminators, (7) first pulverizers, (8) barium sulfate product, (9) the 3rd corrosion-resistant reactors, (10) distiller, (11) the 3rd strainers, (12) Sodium Sulphide crystal product.
Embodiment
Embodiment 1:
With reference to Fig. 1, barium sulfide waste residue prepares the method for common barium sulfate and co-produced sodium sulphite and Industrial Salt, method comprises following concrete steps, weighing 500kg barium sulfide waste residue, the mass content of barium sulphide is 15% in the conversion barium sulfide waste residue,, then the molar content of the barium of calculating according to the molar mass 169.4g/m of barium sulphide is 442.7, earlier described barium sulfate waste residue being pulverized is 40 orders, configuration barium sulfide waste residue suspension liquid; With barium sulfide waste residue suspension liquid and hydrochloric acid according to the ratio of the molar weight of barium and the molar weight of hydrogenchloride be 1: 1.6 successively put into first corrosion-resistant reactor (1) lining, under stirring slowly, carry out chemical reaction, generate 354.2 moles of bariumchlorides and 354.2 mole of hydrogen sulfide gas; After treating that hydrogen sulfide is overflowed, the gained reaction product is filtered through first strainer (2), remove insoluble impurities, obtain the clarifying solution that contains bariumchloride, insoluble impurities burns; The preparation metabisulfite solution, and be will contain the solution of bariumchloride and metabisulfite solution at 1: 0.8 to send in the reactor (3) and carry out chemical reaction according to the ratio of the molar weight of the molar weight of bariumchloride and sodium sulfate, the mixture of barium sulfate-containing precipitation and sodium chloride solution obtained; With the mixture of barium sulfate-containing precipitation and sodium chloride solution through second strainer (4) filtration, filter barium sulfate-containing filter cake and sodium chloride solution; The barium sulfate-containing filter cake is washed through first washing machine (5), first moisture eliminator (6) drying, first pulverizer (7) is pulverized, and obtains barium sulfate product (8), and the barium sulfate that wherein contains is 66.13kg.
The hydrogen sulfide of gained is fed surplus the 3rd corrosion-resistant reactor (9) lining that soda ash solution is arranged, and the mol ratio of maintenance hydrogen sulfide and yellow soda ash is 1: 0.8, under the stirring slowly, hydrogen sulfide and yellow soda ash reaction generate the mixture of Containing Sulfur sodium, carbonic acid gas and water; After the mixture of Containing Sulfur sodium, carbonic acid gas and water treated that carbonic acid gas is overflowed, concentrate with distiller (10) distillation, when liquid reaches capacity, cooling again, separate out sodium sulfide crystal this moment, filter through the 3rd strainer (11), promptly getting its Sodium Sulphide that contains of Sodium Sulphide crystal product (12) is 22.10kg.
Embodiment 2:
With reference to Fig. 1, barium sulfide waste residue prepares the method for common barium sulfate and co-produced sodium sulphite and Industrial Salt, method comprises following concrete steps, weighing 500kg barium sulfide waste residue, the mass content of barium sulphide is 15% in the conversion barium sulfide waste residue,, then the molar content of the barium of calculating according to the molar mass 169.4g/m of barium sulphide is 442.7, earlier described barium sulfate waste residue being pulverized is 40 orders, configuration barium sulfide waste residue suspension liquid; With barium sulfide waste residue suspension liquid and hydrochloric acid according to the ratio of the molar weight of barium and the molar weight of hydrogenchloride be 1: 2.4 successively put into first corrosion-resistant reactor (1) lining, under stirring slowly, carry out chemical reaction, generate 442.7 moles of bariumchlorides and 442.7 mole of hydrogen sulfide gas; After treating that hydrogen sulfide is overflowed, the gained reaction product is filtered through first strainer (2), remove insoluble impurities, obtain the clarifying solution that contains bariumchloride, insoluble impurities burns; The preparation metabisulfite solution, and be will contain the solution of bariumchloride and metabisulfite solution at 1: 1.2 to send in the reactor (3) and carry out chemical reaction according to the ratio of the molar weight of the molar weight of bariumchloride and sodium sulfate, the mixture of barium sulfate-containing precipitation and sodium chloride solution obtained; With the mixture of barium sulfate-containing precipitation and sodium chloride solution through second strainer (4) filtration, filter barium sulfate-containing filter cake and sodium chloride solution; The barium sulfate-containing filter cake is washed through first washing machine (5), first moisture eliminator (6) drying, first pulverizer (7) is pulverized, and obtains barium sulfate product (8), and the barium sulfate that wherein contains is 103.32kg.
The hydrogen sulfide of gained is fed surplus the 3rd corrosion-resistant reactor (9) lining that soda ash solution is arranged, and the mol ratio of maintenance hydrogen sulfide and yellow soda ash is 1: 1.2, under the stirring slowly, hydrogen sulfide and yellow soda ash reaction generate the mixture of Containing Sulfur sodium, carbonic acid gas and water; After the mixture of Containing Sulfur sodium, carbonic acid gas and water treated that carbonic acid gas is overflowed, concentrate with distiller (10) distillation, when liquid reaches capacity, cooling again, separate out sodium sulfide crystal this moment, filter through the 3rd strainer (11), promptly get Sodium Sulphide crystal product (12), its Sodium Sulphide that contains is 34.53kg.。
Embodiment 3:
With reference to Fig. 1, barium sulfide waste residue prepares the method for common barium sulfate and co-produced sodium sulphite and Industrial Salt, method comprises following concrete steps, weighing 500kg barium sulfide waste residue, the mass content of barium sulphide is 15% in the conversion barium sulfide waste residue,, then the molar content of the barium of calculating according to the molar mass 169.4g/m of barium sulphide is 442.7, earlier described barium sulfate waste residue being pulverized is 40 orders, configuration barium sulfide waste residue suspension liquid; With barium sulfide waste residue suspension liquid and hydrochloric acid according to the ratio of the molar weight of barium and the molar weight of hydrogenchloride be 1: 2 successively put into first corrosion-resistant reactor (1) lining, under stirring slowly, carry out chemical reaction, generate 442.7 moles of bariumchlorides and 442.7 mole of hydrogen sulfide gas; After treating that hydrogen sulfide is overflowed, the gained reaction product is filtered through first strainer (2), remove insoluble impurities, obtain the clarifying solution that contains bariumchloride, insoluble impurities burns; The preparation metabisulfite solution, and be will contain the solution of bariumchloride and metabisulfite solution at 1: 1 to send in the reactor (3) and carry out chemical reaction according to the ratio of the molar weight of the molar weight of bariumchloride and sodium sulfate, the mixture of barium sulfate-containing precipitation and sodium chloride solution obtained; With the mixture of barium sulfate-containing precipitation and sodium chloride solution through second strainer (4) filtration, filter barium sulfate-containing filter cake and sodium chloride solution; The barium sulfate-containing filter cake is washed through first washing machine (5), first moisture eliminator (6) drying, first pulverizer (7) is pulverized, and obtains barium sulfate product (8), and the barium sulfate that wherein contains is 103.32kg.
The hydrogen sulfide of gained is fed surplus the 3rd corrosion-resistant reactor (9) lining that soda ash solution is arranged, and the mol ratio of maintenance hydrogen sulfide and yellow soda ash is 1: 1, under the stirring slowly, hydrogen sulfide and yellow soda ash reaction generate the mixture of Containing Sulfur sodium, carbonic acid gas and water; After the mixture of Containing Sulfur sodium, carbonic acid gas and water treated that carbonic acid gas is overflowed, concentrate with distiller (10) distillation, when liquid reaches capacity, cooling again, separate out sodium sulfide crystal this moment, filter through the 3rd strainer (11), promptly get Sodium Sulphide crystal product (12), its Sodium Sulphide that contains is 34.53kg.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, its framework form can be flexible and changeable, can the subseries product.Just make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the present invention is determined by claims of being submitted to.
Claims (2)
1. one kind prepares the method for common barium sulfate and co-produced Sodium Sulphide and Industrial Salt with barium sulfide waste residue, it is characterized in that, comprises following concrete steps:
Steps A: the molar content of barium in the conversion barium sulfide waste residue, and configuration barium sulfide waste residue suspension liquid;
Step B: with barium sulfide waste residue suspension liquid and hydrochloric acid according to the ratio of the molar content of barium and the molar weight of hydrogenchloride be 1: 1.6～2.4 successively put into first corrosion-resistant reactor (1) lining, under stirring slowly, carry out chemical reaction, generate bariumchloride precipitation and hydrogen sulfide;
Step C: after treating that hydrogen sulfide is overflowed, step B gained reaction product is filtered through first strainer (2), remove insoluble impurities, obtain the clarifying solution that contains bariumchloride;
Step D: preparation metabisulfite solution, according to the ratio of the molar weight of the molar weight of bariumchloride and sodium sulfate is 1: 0.8～1.2 the solution that contains bariumchloride of step C gained and metabisulfite solution sent in the reactor (3) to carry out chemical reaction, obtains the mixture of barium sulfate precipitate and sodium chloride solution;
Step e: step D gained reaction product is filtered through second strainer (4), filter the filter cake and the sodium chloride solution of barium sulfate;
Step F: the barium sulfate filter cake of step e gained is washed first moisture eliminator through first washing machine (5)
(6) drying, first pulverizer (7) is pulverized, and obtains barium sulfate product (8);
Step G: the hydrogen sulfide of step B gained is fed surplus the 3rd corrosion-resistant reactor (9) lining that soda ash solution is arranged, and the mol ratio of maintenance hydrogen sulfide and yellow soda ash is 1: 0.8～1.2, under the stirring slowly, hydrogen sulfide and yellow soda ash reaction generate the mixture of Containing Sulfur sodium, carbonic acid gas and water;
Step H: after the mixture of step G gained Containing Sulfur sodium, carbonic acid gas and water treated that carbonic acid gas is overflowed, concentrate with distiller (10) distillation, when liquid reaches capacity, cooling again, separate out sodium sulfide crystal this moment, filter, promptly get Sodium Sulphide crystal product (12) through the 3rd strainer (11).
2. as claimed in claim 1ly prepare the method for common barium sulfate and co-produced Sodium Sulphide and Industrial Salt with barium sulfide waste residue, it is characterized in that, it is characterized in that, step C gained insoluble impurities is buried or burn.
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| CN106698481A (en) * | 2016-12-15 | 2017-05-24 | 袁超鹏 | Device and method for environmental-protection recycling of solid wastes in production process of sodium sulfide |
| CN110563017A (en) * | 2019-09-17 | 2019-12-13 | 龙蟒佰利联集团股份有限公司 | Method for preparing sulfuric acid by utilizing sulfuric acid method titanium dioxide byproduct |
| CN110883061A (en) * | 2019-12-04 | 2020-03-17 | 新晃鲁湘钡业有限公司 | Barium-containing slag mud innocent treatment system |
| CN113371750A (en) * | 2021-06-08 | 2021-09-10 | 龙蟒佰利联集团股份有限公司 | Method for preparing barium sulfate by combining titanium white waste acid obtained by chlorination process and titanium white waste acid obtained by sulfuric acid process |
-
2010
- 2010-11-25 CN CN 201010561887 patent/CN102167383A/en active Pending
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| Title |
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| 《无机化学》 20050228 刘幸平 等 无机化学 科学出版社 第36页 1-2 , 第一版 1 * |
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| CN106698481A (en) * | 2016-12-15 | 2017-05-24 | 袁超鹏 | Device and method for environmental-protection recycling of solid wastes in production process of sodium sulfide |
| CN106698481B (en) * | 2016-12-15 | 2017-11-17 | 袁超鹏 | The environmental protection recycling method and device of solid waste in a kind of vulcanized sodium production process |
| CN110563017A (en) * | 2019-09-17 | 2019-12-13 | 龙蟒佰利联集团股份有限公司 | Method for preparing sulfuric acid by utilizing sulfuric acid method titanium dioxide byproduct |
| CN110883061A (en) * | 2019-12-04 | 2020-03-17 | 新晃鲁湘钡业有限公司 | Barium-containing slag mud innocent treatment system |
| CN113371750A (en) * | 2021-06-08 | 2021-09-10 | 龙蟒佰利联集团股份有限公司 | Method for preparing barium sulfate by combining titanium white waste acid obtained by chlorination process and titanium white waste acid obtained by sulfuric acid process |
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Application publication date: 20110831 |