CN105624402A - Method for preparing copper arsenate from arsenic sulfide-containing waste residue - Google Patents
Method for preparing copper arsenate from arsenic sulfide-containing waste residue Download PDFInfo
- Publication number
- CN105624402A CN105624402A CN201410598072.0A CN201410598072A CN105624402A CN 105624402 A CN105624402 A CN 105624402A CN 201410598072 A CN201410598072 A CN 201410598072A CN 105624402 A CN105624402 A CN 105624402A
- Authority
- CN
- China
- Prior art keywords
- arsenic
- waste residue
- copper arsenate
- leachate
- containing waste
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a method for preparing copper arsenate from arsenic sulfide-containing waste residue, belongs to the field of industrial arsenic waste treatment, and aims to solve the problem that in the prior art, because arsenic in the arsenic sulfide-containing waste residue is mainly recovered in the form of arsenic oxide, and arsenic oxide is a poisonous chemical, serious environmental pollution is caused during a production process, a storage process and a transportation process. The method adopts an oxidation alkaline leaching-precipitation method and comprises the following steps of conducting oxidation alkaline leaching on the waste residue with NaOH and hydrogen peroxide, so as to obtain arsenic leachate; and conducting precipitation on the arsenic leachate with CuSO4 serving as a precipitating agent, so as to obtain copper arsenate. According to the method, recycling, reduction and harmless treatment of the waste residue are realized, the production cost and the running cost are lowered, and the discharge is reduced.
Description
Technical field
The invention belongs to industry arsenic-containing waste residue process field.
Background technology
It is the common method processing industry arsenic-containing waste water that sulfuration method processes arsenic-containing waste water. In the Containing Sulfur arsenic waste residue precipitated, arsenic content is very
Height, the pollution caused is extremely serious, it is necessary to arsenic is reclaimed. At present, both at home and abroad the many forms with arsenic oxide arsenoxide of the arsenic in Containing Sulfur arsenic waste residue are reclaimed, but arsenic oxide arsenoxide is also toxic chemical, production process and storage and transportation will also result in serious environmental pollution, thus be restricted gradually in application.
Summary of the invention
It is an object of the invention to provide and a kind of process the Containing Sulfur arsenic processing method that afterproduct is harmless and can be utilized.
The present invention is achieved by the following technical programs: a kind of method that copper arsenate prepared by Containing Sulfur arsenic waste residue, by waste residue water bath with thermostatic control heating at 90 DEG C, the hydrogen peroxide of the NaOH solution and 30% (w) that are slowly added into 6mol/L under agitation carries out alkali oxide leaching, extraction time is 4h, leach complete, after filtration under diminished pressure, obtain arsenic leachate, take arsenic leachate, the pH=5 of solution is regulated, with saturated CuSO with strong aqua ammonia4Solution is precipitant, water bath with thermostatic control, adopts magnetic agitation, after reaction 30min, is centrifuged by reactant liquor, precipitate scrubbed, obtain copper arsenate after drying.
Described reaction temperature is 50 DEG C.
Described mixing speed is 500r/min.
There is advantages that
The method reduce bed drain purge, save equipment operating cost, it is achieved that waste residue resource, minimizing and innoxious.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described.
Specific embodiment: the method for the invention, by waste residue water bath with thermostatic control heating at 90 DEG C, the hydrogen peroxide of the NaOH solution and 30% (w) that are slowly added into 6mol/L under agitation carries out alkali oxide leaching, and extraction time is 4h. Leach complete, after filtration under diminished pressure, obtain arsenic leachate, take arsenic leachate, regulate the pH=5 of solution with strong aqua ammonia, with saturated CuSO4Solution is precipitant, water bath with thermostatic control, and reaction temperature is 50 DEG C, adopting magnetic agitation, mixing speed is 500r/min, after reaction 30min, reactant liquor is centrifuged, precipitate scrubbed, obtain copper arsenate after drying, and copper arsenate is the preparation important source material containing arsenic series timber preservative.
When the method for the invention, waste residue arsenic leaching rate in the dipped journey of alkali oxide is 96.53%, and arsenic rate of deposition all reaches 93.96%; The copper arsenate product prepared mainly contains Cu3As208, Cu40(As04)2, Cu4(As207)02, copper arsenate purity reaches 87.2%, meets company standard requirement; Product is carried out SEM sign, and result shows, copper arsenate product is graininess, and particle diameter is about 500nm.
Method described in the embodiment of the present invention achieves the waste residue resource, the minimizing and innoxious that produce in production process, reduces production run expense, decreases CER.
Above content is the further description present invention done in conjunction with specific embodiment, it is impossible to assert that specific embodiment of the invention is confined to these explanations. For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace, protection scope of the present invention all should be considered as belonging to.
Claims (3)
1. the method preparing copper arsenate with Containing Sulfur arsenic waste residue, it is characterized in that: by waste residue water bath with thermostatic control heating at 90 DEG C, the hydrogen peroxide of the NaOH solution and 30% (w) that are slowly added into 6mol/L under agitation carries out alkali oxide leaching, extraction time is 4h, leach complete, after filtration under diminished pressure, obtain arsenic leachate, take arsenic leachate, the pH=5 of solution is regulated, with saturated CuSO with strong aqua ammonia4Solution is precipitant, water bath with thermostatic control, adopts magnetic agitation, after reaction 30min, is centrifuged by reactant liquor, precipitate scrubbed, obtain copper arsenate after drying.
2. the method for claim 1, it is characterised in that: described reaction temperature is 50 DEG C.
3. method as claimed in claim 1 or 2, it is characterised in that: described mixing speed is 500r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410598072.0A CN105624402A (en) | 2014-10-31 | 2014-10-31 | Method for preparing copper arsenate from arsenic sulfide-containing waste residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410598072.0A CN105624402A (en) | 2014-10-31 | 2014-10-31 | Method for preparing copper arsenate from arsenic sulfide-containing waste residue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105624402A true CN105624402A (en) | 2016-06-01 |
Family
ID=56039743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410598072.0A Pending CN105624402A (en) | 2014-10-31 | 2014-10-31 | Method for preparing copper arsenate from arsenic sulfide-containing waste residue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105624402A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112811465A (en) * | 2020-12-31 | 2021-05-18 | 沈阳化工大学 | Method for preparing magnesium arsenate by leaching arsenic sulfide mud paste with NaOH |
| CN112850786A (en) * | 2020-12-31 | 2021-05-28 | 沈阳化工大学 | Na2CO3Method for preparing magnesium arsenate by leaching arsenic sulfide mud paste |
| CN113603301A (en) * | 2021-08-17 | 2021-11-05 | 中国科学院城市环境研究所 | Device and method for treating low-concentration arsenic-containing wastewater by using microalgae |
-
2014
- 2014-10-31 CN CN201410598072.0A patent/CN105624402A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112811465A (en) * | 2020-12-31 | 2021-05-18 | 沈阳化工大学 | Method for preparing magnesium arsenate by leaching arsenic sulfide mud paste with NaOH |
| CN112850786A (en) * | 2020-12-31 | 2021-05-28 | 沈阳化工大学 | Na2CO3Method for preparing magnesium arsenate by leaching arsenic sulfide mud paste |
| CN113603301A (en) * | 2021-08-17 | 2021-11-05 | 中国科学院城市环境研究所 | Device and method for treating low-concentration arsenic-containing wastewater by using microalgae |
| CN113603301B (en) * | 2021-08-17 | 2023-10-24 | 中国科学院城市环境研究所 | Device and method for treating low-concentration arsenic-containing wastewater by utilizing microalgae |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101821202B (en) | Method for treatment of arsenic-containing nonferrous smelting intermediate product | |
| CN104438287B (en) | The recycling processing method of a kind of arsenic sulfide waste residue and device thereof | |
| CN101743203A (en) | Method of treating diarsenic trioxide | |
| CA2996328C (en) | Process for removal of arsenic from materials containing same | |
| CN101580317A (en) | Nickel-containing wastewater treatment technology | |
| AU2015389766A1 (en) | Method for manufacturing nickel and cobalt mixed sulfide and nickel oxide ore hydrometallurgical method | |
| CN106315682B (en) | A kind of method of richness rhenium slag production ammonium perrhenate | |
| CN108249480A (en) | A kind of comprehensive recovering process of Copper making arsenic sulfide slag, flue dust leachate arsenic | |
| CN105624402A (en) | Method for preparing copper arsenate from arsenic sulfide-containing waste residue | |
| CN110117052A (en) | A kind of absorption process of sulfide precipitation system hydrogen sulfide tail gas | |
| CN103551037A (en) | Method for separating and concentrating acid in contaminated acid | |
| CN102910760A (en) | Treatment process of contaminated acid containing heavy metals | |
| CN104386737B (en) | A kind of zinc abstraction prepares the method for Cadmium oxide containing cadmium fumes | |
| CN107099672A (en) | The recovery method of the fume from steel making containing zinc | |
| CN103952563A (en) | Method for removing arsenic from white smoke | |
| CN107118820B (en) | Coal dearsenification method | |
| CN210595295U (en) | Device for harmless treatment and recovery of basic copper chloride | |
| CN104961269A (en) | Nonferrous metal mine acidic wastewater comprehensive treatment method | |
| AU2014380678B2 (en) | Facility of manufacturing sulphide and method of manufacturing same | |
| CN105543481A (en) | Method for separating copper, bismuth and arsenic in high-acid waste liquor generated by copper anode slime treatment | |
| CN203558939U (en) | Heavy metal/polluting acid wastewater recycling device | |
| CN106906363B (en) | A kind of processing method of the slag containing arsenical copper | |
| CN109133416A (en) | The treatment process of arsenic-containing waste water | |
| CN106636632B (en) | A kind of method that normal pressure decomposes wolframite or Scheelite-Wolframite Mixed Mine in alkaline system | |
| CN105174527B (en) | Method for carrying out selective oxidation treatment on beneficiation wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160601 |
|
| WD01 | Invention patent application deemed withdrawn after publication |