CN108250243A - A kind of method of comprehensive utilization of waste hydrochloric acid containing arsenic - Google Patents
A kind of method of comprehensive utilization of waste hydrochloric acid containing arsenic Download PDFInfo
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- CN108250243A CN108250243A CN201810062040.7A CN201810062040A CN108250243A CN 108250243 A CN108250243 A CN 108250243A CN 201810062040 A CN201810062040 A CN 201810062040A CN 108250243 A CN108250243 A CN 108250243A
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Abstract
Waste hydrochloric acid containing arsenic is slowly added into the benzyl arsenic acid mother liquid of sodium containing alkalinity and carries out acid-base neutralization reaction by the present invention, and benzyl arsenic acid is precipitated；The benzyl arsenic acid of precipitation is dehydrated, obtains benzyl arsenic acid product；Dewatered arsenious waste solution passes through crystal desalination, is back to and prepares arsinic acid sodium solution.The benzyl arsenic acid mother liquid of sodium containing alkalinity is sodium arsenite to be obtained by the reaction, then benzyl arsenic acid mother liquid of sodium is obtained by the reaction with benzyl chloride by arsenic trioxide and excessive sodium hydroxide solution.It innovatively proposes the comprehensive utilization of waste hydrochloric acid containing arsenic being effectively treated to containing arsenic waste hydrochloric acid, reaching turns waste into wealth, and realizes comprehensive reutilization, can solve environmental issue and increase economic efficiency in the production of benzyl arsenic acid.
Description
Technical field
The present invention relates to the method for comprehensive utilization technical fields of waste hydrochloric acid containing arsenic.
Background technology
Hydrochloric acid belongs to hazardous chemical, and country is used for or place is equipped with stringent regulation.Waste hydrochloric acid containing arsenic is that OBPA (contains
Arsenic organic compound) production process generate a kind of by-product, yield is larger, can be to ambient atmosphere environment, soil environment, water
Body environment, building and biology cause seriously to pollute and destroy, therefore be unable to direct emission or processing.Existing processing is given up containing arsenic
Much methods of hydrochloric acid are alkali to be added to adjust pH value to 8-9, then add calcium salt/molysite deposition arsenic, and shortcoming is that alkali number consumption is big, into
This is higher, generates a large amount of arsenic-containing waste residue and causes secondary pollution, wastewater treatment is difficult to emission request.
Invention content
It is an object of the invention to effectively solve the environmental issue of the waste hydrochloric acid containing arsenic, provide one kind can consume hydrochloric acid and
The method of comprehensive utilization of waste hydrochloric acid containing arsenic that arsenic is reused can effectively be recycled.
The technical solution that the present invention takes is as follows：
A kind of method of comprehensive utilization of waste hydrochloric acid containing arsenic, method and step are as follows：
(1) waste hydrochloric acid containing arsenic is used as neutralization reaction liquid, and waste hydrochloric acid containing arsenic is slowly added into the benzyl arsenic acid containing alkalinity
Carry out acid-base neutralization reaction in mother liquid of sodium, hereinafter, it is 2~3 to be neutralized to pH, benzyl arsenic acid is precipitated at 50 DEG C in controlling reaction temperature；
(2) the benzyl arsenic acid of precipitation is dehydrated, obtains benzyl arsenic acid product；
(3) for dewatered arsenious waste solution by vacuum distillation crystal desalination, distillate, which is back to, prepares arsinic acid sodium solution.
The arsenic content of the waste hydrochloric acid of the present invention containing arsenic is less than 20g/L, content of organics is less than 1/50v/v, hydrochloric acid quality
Content is 20~31%.
Benzyl arsenic acid mother liquid of sodium of the present invention containing alkalinity is anti-by arsenic trioxide and excessive sodium hydroxide solution
Sodium arsenite should be obtained, then benzyl arsenic acid mother liquid of sodium is obtained by the reaction with benzyl chloride.
Benzyl arsenic acid is widely used in the flotation of cassiterite, wolframite and Rare Earth Mine a variety of as collecting agent and flotation
The collecting agent of metal oxide ore.The synthetic method of existing benzyl arsenic acid is as solvent and three oxidations two using sodium hydroxide
Arsenic reaction adds in benzyl chloride reaction into sodium arsenite, by being acidified with sulfuric acid, washing, being dried to obtain benzyl arsenic acid product.And this
It proposes to innovation to comprehensively utilize waste hydrochloric acid containing arsenic in the production of benzyl arsenic acid, effectively be located to containing arsenic waste hydrochloric acid
Reason, reaching turns waste into wealth, and realizes comprehensive reutilization, can solve environmental issue and increase economic efficiency.
Present invention process is simple, and production cost is low, and production process is generated without toxic and harmful gas such as acid gas, arsenic hydrides, tool
There is significant environmental protection and energy saving effect.
Specific embodiment
Embodiment 1
A kind of method of comprehensive utilization of waste hydrochloric acid containing arsenic, method and step are as follows：
(1) benzyl arsenic acid mother liquid of sodium of the 2000L containing alkalinity is added in neutralization chamber, then by arsenic content 17g/L, organic
Object content 1/86v/v, the waste hydrochloric acid containing arsenic that mass concentration is 28% are slowly added into neutralization chamber, and neutral temperature is controlled at 50 DEG C
Hereinafter, starting stirring, it is 2~3 to be neutralized to pH, and benzyl arsenic acid is precipitated；
(2) the benzyl arsenic acid of precipitation is dehydrated, obtains benzyl arsenic acid product；Dewatered arsenious waste solution is by decompression
Crystal desalination is distilled, distillate, which is back to, prepares arsinic acid sodium solution.
The casting yield of benzyl arsenic acid is 96.2%, consumption waste hydrochloric acid containing arsenic 1018L.
Embodiment 2
(1) benzyl arsenic acid mother liquid of sodium of the 2000L containing alkalinity is added in neutralization chamber, then by arsenic content 14g/L, organic
Object content 1/93v/v, the waste hydrochloric acid containing arsenic that mass concentration is 31% are slowly added into neutralization chamber, and neutral temperature is controlled at 50 DEG C
Hereinafter, starting stirring, it is 2~3 to be neutralized to pH, and benzyl arsenic acid is precipitated；
(2) the benzyl arsenic acid of precipitation is dehydrated, obtains benzyl arsenic acid product；Dewatered arsenious waste solution is by decompression
Crystal desalination is distilled, distillate, which is back to, prepares arsinic acid sodium solution.
The casting yield of benzyl arsenic acid is 97.3%, consumption waste hydrochloric acid containing arsenic 986L.
Embodiment 3
(1) benzyl arsenic acid mother liquid of sodium of the 2000L containing alkalinity is added in neutralization chamber, then by arsenic content 15g/L, organic
Object content 1/81v/v, the waste hydrochloric acid containing arsenic that mass concentration is 20% are slowly added into neutralization chamber, and neutral temperature is controlled at 50 DEG C
Hereinafter, starting stirring, it is 2~3 to be neutralized to pH, and benzyl arsenic acid is precipitated；
(2) the benzyl arsenic acid of precipitation is dehydrated, obtains benzyl arsenic acid product；Dewatered arsenious waste solution is by decompression
Crystal desalination is distilled, distillate, which is back to, prepares arsinic acid sodium solution.
The casting yield of benzyl arsenic acid is 95.3%, consumption waste hydrochloric acid containing arsenic 1327L.
The benzyl arsenic acid mother liquid of sodium containing alkalinity described in the above embodiment of the present invention is by arsenic trioxide and excessive hydrogen
Sodium arsenite is obtained by the reaction in sodium hydroxide solution, then reacts self-control with benzyl chloride and obtain benzyl arsenic acid mother liquid of sodium, wherein containing hydrogen-oxygen
Change sodium excessive amount 4.5mol/L, side product chlorinated sodium and principal product benzyl arsenic acid sodium.The crystallization of the dewatered arsenious waste solution
Prior art processes can be used in desalination.
Claims (3)
1. a kind of method of comprehensive utilization of waste hydrochloric acid containing arsenic, which is characterized in that method and step is as follows：
(1) waste hydrochloric acid containing arsenic is used as neutralization reaction liquid, and it is female that waste hydrochloric acid containing arsenic is slowly added into the benzyl arsenic acid sodium containing alkalinity
Carry out acid-base neutralization reaction in liquid, hereinafter, it is 2~3 to be neutralized to pH, benzyl arsenic acid is precipitated at 50 DEG C in controlling reaction temperature；
(2) the benzyl arsenic acid of precipitation is dehydrated, obtains benzyl arsenic acid product；Dewatered arsenious waste solution is de- by crystallization
Salt is back to and prepares arsinic acid sodium solution.
2. one kind method of comprehensive utilization of waste hydrochloric acid containing arsenic according to claim 1, which is characterized in that the waste hydrochloric acid containing arsenic
Arsenic content be less than 20g/L, content of organics be less than 1/50v/v, hydrochloric acid mass content be 20~31%.
3. one kind method of comprehensive utilization of waste hydrochloric acid containing arsenic according to claim 1, which is characterized in that the benzyl containing alkalinity
Base arsenic acid mother liquid of sodium is sodium arsenite to be obtained by the reaction, then react with benzyl chloride by arsenic trioxide and excessive sodium hydroxide solution
Obtain benzyl arsenic acid mother liquid of sodium.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810062040.7A CN108250243A (en) | 2018-01-23 | 2018-01-23 | A kind of method of comprehensive utilization of waste hydrochloric acid containing arsenic |
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| CN201810062040.7A CN108250243A (en) | 2018-01-23 | 2018-01-23 | A kind of method of comprehensive utilization of waste hydrochloric acid containing arsenic |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109265483A (en) * | 2018-10-11 | 2019-01-25 | 云南省环境工程评估中心 | A kind of method of arsenic sulfide slag comprehensive utilization |
| CN110282805A (en) * | 2019-07-22 | 2019-09-27 | 红河砷业有限责任公司 | A kind of method of comprehensive utilization of waste acid containing arsenic that flue gas during smelting generates |
| CN113307828A (en) * | 2021-04-26 | 2021-08-27 | 林西金易来砷业有限公司 | Synthesis process of benzyl arsonic acid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101269890A (en) * | 2008-05-06 | 2008-09-24 | 林建忠 | Comprehensive utilization method for acid waste liquid containing arsenic |
| CN102433440A (en) * | 2011-12-20 | 2012-05-02 | 湖南展泰有色金属有限公司 | Valuable recovery method of arsenic in high-arsenic metallurgy waste materials |
| CN103031442A (en) * | 2011-10-09 | 2013-04-10 | 林建忠 | Method for comprehensively utilizing arsenious waste liquor produced in copper-smelting process |
-
2018
- 2018-01-23 CN CN201810062040.7A patent/CN108250243A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101269890A (en) * | 2008-05-06 | 2008-09-24 | 林建忠 | Comprehensive utilization method for acid waste liquid containing arsenic |
| CN103031442A (en) * | 2011-10-09 | 2013-04-10 | 林建忠 | Method for comprehensively utilizing arsenious waste liquor produced in copper-smelting process |
| CN102433440A (en) * | 2011-12-20 | 2012-05-02 | 湖南展泰有色金属有限公司 | Valuable recovery method of arsenic in high-arsenic metallurgy waste materials |
Non-Patent Citations (3)
| Title |
|---|
| MENG-SHU LIU 等: "Introducing Chirality into Hybrid Clusters from an Achiral Ligand: Synthesis and Characterization of Polyoxomolybdates Containing a Benzylarsonate Group", 《EUR. J. INORG. CHEM.》 * |
| 张洪 等: "苄基胂酸合成研究", 《云南化工》 * |
| 朱建光 等: "锡石、黑钨细泥捕收剂苄基胂酸的研制", 《中南矿冶学院学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109265483A (en) * | 2018-10-11 | 2019-01-25 | 云南省环境工程评估中心 | A kind of method of arsenic sulfide slag comprehensive utilization |
| CN110282805A (en) * | 2019-07-22 | 2019-09-27 | 红河砷业有限责任公司 | A kind of method of comprehensive utilization of waste acid containing arsenic that flue gas during smelting generates |
| CN113307828A (en) * | 2021-04-26 | 2021-08-27 | 林西金易来砷业有限公司 | Synthesis process of benzyl arsonic acid |
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