CN103205580A - Desulfurization method in noble metal enriching process - Google Patents
Desulfurization method in noble metal enriching process Download PDFInfo
- Publication number
- CN103205580A CN103205580A CN2013101373508A CN201310137350A CN103205580A CN 103205580 A CN103205580 A CN 103205580A CN 2013101373508 A CN2013101373508 A CN 2013101373508A CN 201310137350 A CN201310137350 A CN 201310137350A CN 103205580 A CN103205580 A CN 103205580A
- Authority
- CN
- China
- Prior art keywords
- noble metal
- desulfurization
- potential
- control
- slag
- 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)
Abstract
The invention relates to a desulfurization method in a noble metal enriching process and relates to a desulfurization method for carrying out control potential chlorination leaching to separate out base metal elements to obtain noble metal control-potential chlorinated slag during metal sulfide ore smelting. The desulfurization method is characterized by comprising the following steps of firstly slurrying control-potential chlorinated slag, adding sodium sulfite to react, filtering and washing after the reaction to obtain the desulfurized filter residue. According to the desulfurization method disclosed by the invention, the noble metal enriching desulfurization is realized by utilizing the fact that the sodium sulfite and the sulfur react to generate sodium thiosulfate which is easily solved in water. The sulfur in the noble metal control-potential chlorinated slag mostly exists in a form of elementary substance, sodium sulfite is added to the noble metal control-potential chlorinated slag to react so that the most of elementary sulfur in the control-potential chlorinated slag can be removed, the desulfurization rate to the control-potential chlorinated slag is more than 90%, the content of the noble metal in the generated desulfurization liquid is smaller than 0.001g/L, and the noble metal loss during the desulfurization is small; and the desulfurization method has the advantages of short process flow, simpleness in operation, low production cost and small environment pollution.
Description
Technical field
Sulfur method in a kind of concentration of precious metal process, the sulfur method that separation base metal element obtains precious metal chloridizing with controlled voltage slag is leached in the current potential chlorination of controlling that relates in a kind of metal sulfide smelting.
Background technology
All contain the platinum metals in copper nickel sulfide mineral and nickel raw material, behind pyrometallurgical smelting, most of platinum family concentration of precious metal is rich in the secondary cupronickel of precious metal through the floating output of high sulfonium mill in high nickel matte.Because base metal and sulphur account for 98%～99% of total mass in the secondary cupronickel.Therefore, must control current potential chlorination leaching separation base metal element and obtain precious metal chloridizing with controlled voltage slag, after desulfurization, just can make precious metal further obtain enrichment then.
Usually the sulfur removal technology of precious metal in enrichment process adopts the desulfurization of zellon method, but desulfurization material needs oven dry when adopting this method, and simultaneously because zellon is organic solvent, high volatility, toxicity is big, operating environment is abominable.In addition, adopt alkali to soak sulfur removal technology, though less to the influence of environment, reaction back solution viscosity height is difficult for filtering, and the content of precious metals such as the platinum in the filtrate, palladium, gold is higher, is unfavorable for the recovery of precious metal.
Summary of the invention
Purpose of the present invention is exactly the deficiency that exists at above-mentioned prior art, and providing a kind of can remove most of elemental sulfur, desulfuration efficiency height, the sulfur method in the little concentration of precious metal process of precious metal losses.
Purpose of the present invention can be achieved through the following technical solutions.
Sulfur method in a kind of concentration of precious metal process is characterized in that its process at first carries out pulp with the chloridizing with controlled voltage slag, adds S-WAT then and reacts, and filters after the reaction, washs and obtain the desulfurization filter residue.
Sulfur method in a kind of concentration of precious metal process of the present invention, after it is characterized in that the chloridizing with controlled voltage slag carried out pulp, control pH value of solution value is 8 ~ 9.
Sulfur method in a kind of concentration of precious metal process of the present invention is characterized in that the add-on of S-WAT is calculated Na by precious metal chloridizing with controlled voltage slag sulphur content
2SO
3: S=2 ~ 5:1.
Sulfur method in a kind of concentration of precious metal process of the present invention is characterized in that the solvent and solute weight ratio that reacts is 5 ~ 8:1.
Sulfur method in a kind of concentration of precious metal process of the present invention is characterized in that the temperature of reacting is 90 ℃-95 ℃, and the reaction times is 0.5 ~ 1h.
Sulfur method in a kind of concentration of precious metal process of the present invention utilizes S-WAT and sulphur to react generation Sulfothiorine soluble in water under certain condition and realizes the concentration of precious metal desulfurization.Because the sulphur major part in the precious metal chloridizing with controlled voltage slag exists with the simple substance form, add the S-WAT reaction, most of elemental sulfur in the chloridizing with controlled voltage slag can be removed, to the desulfurization degree of chloridizing with controlled voltage slag all more than 90%, the content of the precious metal in the doctor solution that produces is all less than 0.001g/L, and precious metal losses is little in the sweetening process; It is short to have technical process, and simple to operate, production cost is low, the advantage that environmental pollution is little.
Description of drawings
Fig. 1 is the process flow sheet of method of the present invention.
Embodiment
Sulfur method in a kind of concentration of precious metal process, its process reason is carried out pulp with the chloridizing with controlled voltage slag, adds S-WAT then and reacts, and filters after the reaction, washs and obtain the desulfurization filter residue.After the chloridizing with controlled voltage slag carried out pulp, control pH value of solution value was 8 ~ 9; The add-on of S-WAT is pressed precious metal chloridizing with controlled voltage slag sulphur content and is calculated, Na
2SO
3: S=2 ~ 5:1; Solvent and solute weight ratio is 5 ~ 8:1; The temperature of reaction is 90 ℃-95 ℃, and the reaction times is 0.5 ~ 1h.
The invention will be further described below in conjunction with embodiment.
Embodiment 1
Inject 300ml water in container, add 200g sulfur-bearing 80% precious metal chloridizing with controlled voltage slag, stir 5min, survey pH value of solution=4, drip NaOH solution, regulator solution pH=8 adds 800g technical grade Na then
2SO
37H
2O, moisturizing to cumulative volume is 1000ml, carry out heat temperature raising, when temperature reaches 100 ℃, isothermal reaction 1h, moisturizing is to 1000ml and cooling, filter during to 80 ℃, to neutral, obtain 40.5g sulfur-bearing 29.8% precious metal desulfurization slag with the hot wash filter residue, desulfurization degree reaches 92%, and the content that detects Au in the doctor solution is that the content of 0.0009g/L, Pd is that the content of 0.0002g/L, Pt is 0.0007g/L.
Embodiment 2
In the 3000L container, inject 800L water, start stirring, add 400kg sulfur-bearing 81.5% precious metal chloridizing with controlled voltage slag, survey pH=3, add industrial alkali liquid regulator solution pH=9, add 2000kg S-WAT (technical grade Na
2SO
37H
2O), moisturizing to cumulative volume is 3000L, heat temperature raising, when temperature arrives 100 ℃, isothermal reaction 0.8h, moisturizing is filtered to 3000L and when being cooled to 80 ℃, extremely neutral with the hot wash filter residue, obtain 100kg sulfur-bearing 27.8% precious metal desulfurization slag, desulfurization degree reaches 92%, and the content of Au is that the content of 0.0008g/L, Pd is that the content of 0.0002g/L, Pt is 0.0006g/L in the doctor solution after testing.
Claims (5)
1. the sulfur method in the concentration of precious metal process is characterized in that its process reason carries out pulp with the chloridizing with controlled voltage slag, adds S-WAT then and reacts, and filters after the reaction, washs and obtain the desulfurization filter residue.
2. the sulfur method in a kind of concentration of precious metal process according to claim 1, after it is characterized in that the chloridizing with controlled voltage slag carried out pulp, control pH value of solution value is 8 ~ 9.
3. the sulfur method in a kind of concentration of precious metal process according to claim 1 is characterized in that the add-on of S-WAT is calculated Na by precious metal chloridizing with controlled voltage slag sulphur content
2SO
3: S=2 ~ 5:1.
4. the sulfur method in a kind of concentration of precious metal process according to claim 1 is characterized in that the solvent and solute weight ratio that reacts is 5 ~ 8:1.
5. the sulfur method in a kind of concentration of precious metal process according to claim 1 is characterized in that the temperature of reacting is 90 ℃-95 ℃, and the reaction times is 0.5 ~ 1h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101373508A CN103205580A (en) | 2013-04-19 | 2013-04-19 | Desulfurization method in noble metal enriching process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101373508A CN103205580A (en) | 2013-04-19 | 2013-04-19 | Desulfurization method in noble metal enriching process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103205580A true CN103205580A (en) | 2013-07-17 |
Family
ID=48752983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101373508A Pending CN103205580A (en) | 2013-04-19 | 2013-04-19 | Desulfurization method in noble metal enriching process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103205580A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498052A (en) * | 2013-10-11 | 2014-01-08 | 金川集团股份有限公司 | Method for efficiently enriching rare precious metals from complex low-grade heat filter residues |
| CN104445092A (en) * | 2014-12-07 | 2015-03-25 | 金川集团股份有限公司 | Method for preparing anhydrous sodium thiosulfate from platinum family metal desulfurization solution |
| CN106148689A (en) * | 2016-08-29 | 2016-11-23 | 金川集团股份有限公司 | Oxygen pressure acidleach efficiently concentrating gold and the method for platinum group metal concentrate |
| CN106379867A (en) * | 2016-10-21 | 2017-02-08 | 金川集团股份有限公司 | Method for producing sodium thiosulfate pentahydrate |
| CN106430114A (en) * | 2016-10-21 | 2017-02-22 | 金川集团股份有限公司 | Production method of sodium thiosulfate pentahydrate |
| CN111519036A (en) * | 2020-04-29 | 2020-08-11 | 金川集团股份有限公司 | Method for enriching precious metals from low-grade complex materials difficult to process |
| CN113652541A (en) * | 2021-08-20 | 2021-11-16 | 宁波大地化工环保有限公司 | Wet desulphurization process of nickel anode mud |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052834A (en) * | 1991-01-24 | 1991-07-10 | 陈汉长 | Low-temp desulfurization method of lithopone |
| CN1186523A (en) * | 1995-06-07 | 1998-07-01 | 康明柯工程服务有限公司 | Chloride assisted hydrometallurgical extraction of metal |
| CN1477215A (en) * | 2003-04-04 | 2004-02-25 | 山东招金集团金翅岭矿冶有限公司 | Method for extracting gold and silver from indissoluble gold and silver preparation concentrate |
| CN1732277A (en) * | 2002-12-31 | 2006-02-08 | 英泰克有限公司 | Recovering metals from sulfidic materials |
| CN101024907A (en) * | 2007-03-23 | 2007-08-29 | 山东海龙股份有限公司 | High-wetness modulus adhesive colloid fiber and preparing method |
| CN101104959A (en) * | 2007-06-14 | 2008-01-16 | 山东海龙股份有限公司 | Method for preparing viscose fiber |
| CN101879404A (en) * | 2010-07-12 | 2010-11-10 | 华东理工大学 | Recycled flue gas desulfurization and denitration method |
| CN102978397A (en) * | 2012-10-12 | 2013-03-20 | 金川集团股份有限公司 | Removal method of arsenic from arsenic-containing waste liquid with high acidity |
-
2013
- 2013-04-19 CN CN2013101373508A patent/CN103205580A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052834A (en) * | 1991-01-24 | 1991-07-10 | 陈汉长 | Low-temp desulfurization method of lithopone |
| CN1186523A (en) * | 1995-06-07 | 1998-07-01 | 康明柯工程服务有限公司 | Chloride assisted hydrometallurgical extraction of metal |
| CN1732277A (en) * | 2002-12-31 | 2006-02-08 | 英泰克有限公司 | Recovering metals from sulfidic materials |
| CN1477215A (en) * | 2003-04-04 | 2004-02-25 | 山东招金集团金翅岭矿冶有限公司 | Method for extracting gold and silver from indissoluble gold and silver preparation concentrate |
| CN101024907A (en) * | 2007-03-23 | 2007-08-29 | 山东海龙股份有限公司 | High-wetness modulus adhesive colloid fiber and preparing method |
| CN101104959A (en) * | 2007-06-14 | 2008-01-16 | 山东海龙股份有限公司 | Method for preparing viscose fiber |
| CN101879404A (en) * | 2010-07-12 | 2010-11-10 | 华东理工大学 | Recycled flue gas desulfurization and denitration method |
| CN102978397A (en) * | 2012-10-12 | 2013-03-20 | 金川集团股份有限公司 | Removal method of arsenic from arsenic-containing waste liquid with high acidity |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498052A (en) * | 2013-10-11 | 2014-01-08 | 金川集团股份有限公司 | Method for efficiently enriching rare precious metals from complex low-grade heat filter residues |
| CN104445092A (en) * | 2014-12-07 | 2015-03-25 | 金川集团股份有限公司 | Method for preparing anhydrous sodium thiosulfate from platinum family metal desulfurization solution |
| CN106148689A (en) * | 2016-08-29 | 2016-11-23 | 金川集团股份有限公司 | Oxygen pressure acidleach efficiently concentrating gold and the method for platinum group metal concentrate |
| CN106148689B (en) * | 2016-08-29 | 2018-12-07 | 金川集团股份有限公司 | The method that oxygen presses acidleach efficiently concentrating gold and platinum group metal concentrate |
| CN106379867A (en) * | 2016-10-21 | 2017-02-08 | 金川集团股份有限公司 | Method for producing sodium thiosulfate pentahydrate |
| CN106430114A (en) * | 2016-10-21 | 2017-02-22 | 金川集团股份有限公司 | Production method of sodium thiosulfate pentahydrate |
| CN111519036A (en) * | 2020-04-29 | 2020-08-11 | 金川集团股份有限公司 | Method for enriching precious metals from low-grade complex materials difficult to process |
| CN111519036B (en) * | 2020-04-29 | 2022-05-17 | 金川集团股份有限公司 | Method for enriching precious metals from low-grade complex materials difficult to process |
| CN113652541A (en) * | 2021-08-20 | 2021-11-16 | 宁波大地化工环保有限公司 | Wet desulphurization process of nickel anode mud |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103205580A (en) | Desulfurization method in noble metal enriching process | |
| Ding et al. | Recovery of precious metals from electronic waste and spent catalysts: A review | |
| Liu et al. | Recovery of scattered and precious metals from copper anode slime by hydrometallurgy: A review | |
| Guo et al. | Recovery of metal values from waste printed circuit boards using an alkali fusion–leaching–separation process | |
| CN103305699B (en) | Method for extracting platinum-palladium out of copper anode mud | |
| CA2798302C (en) | Process for recovering valuable metals from precious metal smelting slag | |
| CN102433439B (en) | Method for recovering rhenium from arsenic filter cake | |
| CN102390819B (en) | Method for preparing tellurium dioxide from tellurium slag | |
| CN102851497A (en) | Method for treating arsenic-containing material | |
| CN103626221B (en) | A kind of method of the useless agent regeneration co-production ammonium sulfate of zinc oxide desulfurization | |
| CN101328539A (en) | Oxidation oven ash hydrometallurgical leaching process | |
| CN103993180A (en) | Method for recovering valuable metals from scrap copper anode slime | |
| CN106148689B (en) | The method that oxygen presses acidleach efficiently concentrating gold and platinum group metal concentrate | |
| Wen et al. | Researches on preparation and properties of sodium polysulphide as gold leaching agent | |
| JP2013147685A (en) | Gold recovery method, and gold production method using the same | |
| CN102560123A (en) | Method for utilization and harmless treatment of multi-metal material containing arsenic and indium | |
| CN104060106A (en) | Method for preparing bismuth oxide by extracting bismuth from bismuth-containing liquor through solvent extracting method | |
| CN101565780B (en) | Smelting method of polymetallic lead-zinc sulfide ore | |
| CN110607450B (en) | Method for recovering palladium in printed circuit board by selective leaching precipitation | |
| CN102586584B (en) | Method for selectively separating valuable metals from complex lead-containing precious metal material | |
| CN103498052B (en) | Method for efficiently enriching rare precious metals from complex low-grade heat filter residues | |
| CN104495761A (en) | Method for preparing copper telluride from high nickel copper anode slime | |
| CN103352125B (en) | Method for high-efficiently enriching gold and platinum metal from complex low-grade chlorine soaked slag | |
| CN103409635A (en) | Technology for enrichment of valuable metals in tin anode slurry | |
| CN104004907A (en) | Method for separating copper from lead matte and comprehensively utilizing lead matte |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130717 |