RU2441929C1 - Extraction of gold, palladium and platinum from chloride solution - Google Patents
Extraction of gold, palladium and platinum from chloride solution Download PDFInfo
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- RU2441929C1 RU2441929C1 RU2010150231/02A RU2010150231A RU2441929C1 RU 2441929 C1 RU2441929 C1 RU 2441929C1 RU 2010150231/02 A RU2010150231/02 A RU 2010150231/02A RU 2010150231 A RU2010150231 A RU 2010150231A RU 2441929 C1 RU2441929 C1 RU 2441929C1
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- Prior art keywords
- gold
- platinum
- palladium
- extraction
- sorption
- Prior art date
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims abstract description 46
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 239000010931 gold Substances 0.000 title claims abstract description 26
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 24
- 229910052697 platinum Inorganic materials 0.000 title claims abstract description 22
- 229910052763 palladium Inorganic materials 0.000 title claims abstract description 20
- 238000000605 extraction Methods 0.000 title abstract description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 title 1
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims abstract description 16
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical class [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims abstract description 15
- 238000003795 desorption Methods 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 235000010288 sodium nitrite Nutrition 0.000 claims abstract description 8
- 238000001179 sorption measurement Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 5
- 150000001450 anions Chemical class 0.000 claims description 10
- 239000011734 sodium Substances 0.000 claims description 10
- 150000001805 chlorine compounds Chemical class 0.000 abstract description 4
- 239000007864 aqueous solution Substances 0.000 abstract 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 abstract 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- 235000010265 sodium sulphite Nutrition 0.000 description 6
- 229910000510 noble metal Inorganic materials 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical class [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000003957 anion exchange resin Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 239000011780 sodium chloride Chemical class 0.000 description 2
- 239000002594 sorbent Substances 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- SAMJGBVVQUEMGC-UHFFFAOYSA-N 1-ethenoxy-2-(2-ethenoxyethoxy)ethane Chemical compound C=COCCOCCOC=C SAMJGBVVQUEMGC-UHFFFAOYSA-N 0.000 description 1
- ITUNZCVRYICLQM-UHFFFAOYSA-N 1-ethenyl-1,2,4-triazole Chemical compound C=CN1C=NC=N1 ITUNZCVRYICLQM-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical class [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910021591 Copper(I) chloride Inorganic materials 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000005349 anion exchange Methods 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Chemical class 0.000 description 1
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
Description
Изобретение относится к металлургии благородных металлов, в частности к гидрометаллургии золота, платины и палладия, способам извлечения их из растворов методом сорбции анионообменниками.The invention relates to the metallurgy of noble metals, in particular to the hydrometallurgy of gold, platinum and palladium, methods for their extraction from solutions by sorption by anion exchangers.
Известен способ сорбции комплексных хлоридов золота, платины и палладия анионообменниками во всем диапазоне концентраций HCl (Справочник химика под ред. Б.П.Никольского, 1955 г. Т.4. С.174).A known method of sorption of complex chlorides of gold, platinum and palladium by anion exchangers in the entire range of concentrations of HCl (Handbook of a chemist under the editorship of B.P. Nikolsky, 1955, T.4. P.174).
Наиболее близким по технической сущности решением является патент "Сетчатые сополимеры 1-винил-1,2,4-триазола с дивиниловым эфиром диэтиленгликоля в качестве сорбентов благородных металлов из кислых сред и способ их получения" (RU 2326131 С2 (МПК B01J 20/26, опубл. 10.06.2008). Десорбцию благородных металлов проводят раствором тиомочевины. Предложенный сорбент обладает комплексообразующими свойствами, что может привести к затруднениям при десорбции.The solution closest in technical essence is the patent "Mesh copolymers of 1-vinyl-1,2,4-triazole with diethylene glycol divinyl ether as sorbents of noble metals from acidic media and the method for their preparation" (RU 2326131 C2 (IPC B01J 20/26, publ. 10.06.2008). The desorption of noble metals is carried out with a solution of thiourea. The proposed sorbent has complexing properties, which can lead to difficulties in desorption.
Отличием заявленного изобретения является то, что сорбцию проводят на низкоосновных анионитах, а десорбцию проводят раствором смеси солей сульфита натрия (Na2SO3) и нитрита натрия (NaNO2.)The difference of the claimed invention is that sorption is carried out on low-basic anion exchangers, and desorption is carried out by a solution of a mixture of salts of sodium sulfite (Na 2 SO 3 ) and sodium nitrite (NaNO 2. )
Задачей изобретения является разработка количественного извлечения золота, платины и палладия в связи с планируемым освоением месторождения Сухой Лог с балансовым запасом золота более 1000 тонн, средним содержанием золота 2,71 г/т и содержанием платины в пределах от сотых до десятых г/т. По данным В.И.Гончарова и др. в золоторудных месторождениях - мезозойских черносланцевых толщах Северо-Востока России - содержание платины и палладия в некоторых пробах достигает 0,5-1 г/т (В.И.Гончаров и др. Золото Сибири и Дальнего Востока. Тезисы 3 Всероссийского симпозиума. Улан-Удэ. 2004. С.53-57).The objective of the invention is to develop a quantitative extraction of gold, platinum and palladium in connection with the planned development of the Sukhoi Log deposit with a gold reserves of more than 1000 tons, an average gold content of 2.71 g / t and a platinum content in the range from hundredths to tenths / g. According to V.I. Goncharov et al. In gold deposits - Mesozoic black shale strata of the North-East of Russia - the content of platinum and palladium in some samples reaches 0.5-1 g / t (V.I. Goncharov and others. Gold of Siberia and Far East. Abstracts 3 of the All-Russian Symposium. Ulan-Ude. 2004. P.53-57).
Целесообразно рассмотреть возможность совместного в одну операцию извлечения золота, платины и палладия из концентратов, полученных из руды месторождения Сухой Лог с содержанием золота 100 г/т и содержанием платины 20 г/т. Сущность изобретения состоит в том, что комплекные хлориды золота, платины и палладия эффективно сорбируются низкоосновными анионообменниками из растворов HCl, извлечение золота, платины и палладия из анионита проводят в одну операцию раствором смеси солей сульфита натрия (Na2SO3) и нитрита натрия (NaNO2). Для десорбции применяется раствор смеси солей сульфита натрия (Na2SO3) и нитрита натрия (NaNO2), имеющий щелочной характер, что приводит к нейтрализации протонированной формы низкоосновных анионитов и, таким образом, к потере (анионообменных свойств) способности удерживания анионов. При десорбции раствором смеси солей сульфита натрия (Na2SO3) и нитрита натрия (NaNO2) благородные металлы переходят в растворимые соединения: золото в Na3[Au(SO3)2], платина в Na2[Pt(NO2)4], палладий в Na2[Pd(NO2)4] и, таким образом, остаются в растворе. Десорбция происходит фронтальным вытеснением сорбированных анионов, что обеспечивает получение концентрированных растворов.It is advisable to consider the possibility of joint extraction of gold, platinum and palladium from concentrates obtained from ore from the Sukhoi Log deposit with a gold content of 100 g / t and a platinum content of 20 g / t in one operation. The essence of the invention lies in the fact that complex chlorides of gold, platinum and palladium are effectively sorbed by low-basic anion exchangers from HCl solutions, the extraction of gold, platinum and palladium from anion exchange resin is carried out in one operation by a solution of a mixture of salts of sodium sulfite (Na 2 SO 3 ) and sodium nitrite (NaNO 2 ). For desorption, a solution of a mixture of salts of sodium sulfite (Na 2 SO 3 ) and sodium nitrite (NaNO 2 ), which is alkaline in nature, is used, which leads to the neutralization of the protonated form of low-basic anion exchangers and, thus, to the loss of (anion-exchange properties) anion retention capacity. Upon desorption with a solution of a mixture of salts of sodium sulfite (Na 2 SO 3 ) and sodium nitrite (NaNO 2 ), noble metals pass into soluble compounds: gold in Na 3 [Au (SO 3 ) 2 ], platinum in Na 2 [Pt (NO 2 ) 4 ], palladium in Na 2 [Pd (NO 2 ) 4 ] and, thus, remain in solution. Desorption occurs by frontal displacement of sorbed anions, which provides concentrated solutions.
ПримерExample
Извлечение золота, платины и палладия в виде комплексных хлоридов производилось низкоосновным анионообменником Пьюролайт S 990 из раствора, солевой фон которого представлен солянокислыми солями железа, меди, хлористого натрия и соляной кислоты:The extraction of gold, platinum and palladium in the form of complex chlorides was carried out by the low-basic Pyrolight S 990 anion exchanger from a solution, the salt background of which is represented by hydrochloric salts of iron, copper, sodium chloride and hydrochloric acid:
Содержание благородных металлов составляло:The content of precious metals was:
Раствор пропускался через колонку со смолой в циркуляционном режиме со скоростью 2 объема смолы в час (BV/h) для получения насыщенной смолы. Соотношение раствор:смола=1000:0,2 г. Навеска смолы 0,2 г имеет теоретическую емкость в молях, в 10 раз превышающую общее содержание суммы благородных металлов в молях в 1 л раствора.The solution was passed through a column of resin in a circulating mode at a rate of 2 volumes of resin per hour (BV / h) to obtain a saturated resin. The ratio of solution: resin = 1000: 0.2 g. A portion of 0.2 g of resin has a theoretical capacity in moles, 10 times the total content of the amount of precious metals in moles per 1 liter of solution.
Насыщенная смола отмывалась от железа промывкой водой объемом 5-10 BV/h. Для элюирования благородных металлов насыщенная смола выдерживалась в 1 М растворе смеси солей по сульфиту натрия (Na2SO3) и по нитриту натрия (NaNO2) при 20 или 50°С 1 или 4 часа. Соотношение при элюировании смола:раствор=1:25.Saturated resin was washed from iron by washing with water of 5-10 BV / h. For elution of noble metals, the saturated resin was kept in a 1 M solution of a mixture of salts of sodium sulfite (Na 2 SO 3 ) and sodium nitrite (NaNO 2 ) at 20 or 50 ° C for 1 or 4 hours. The ratio when eluting resin: solution = 1: 25.
Емкость ионита Пьюролайт S 990 в мг/г составила по:The capacity of the Purolight S 990 ion exchanger in mg / g was as follows:
при равновесии с раствором по:at equilibrium with the solution according to:
Поэтому, очевидно, емкость анионита будет выше при полном насыщении и, соответственно, содержание в элюате.Therefore, obviously, the capacity of the anion exchange resin will be higher at full saturation and, accordingly, the content in the eluate.
Содержание в рафинате составляло:The raffinate content was:
Содержание в элюате/растворе смеси солей сульфита натрия (Na2SO3) и нитрита натрия (NaNO2) составляло, используя:The content in the eluate / solution of a mixture of salts of sodium sulfite (Na 2 SO 3 ) and sodium nitrite (NaNO 2 ) was using:
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2010150231/02A RU2441929C1 (en) | 2010-12-07 | 2010-12-07 | Extraction of gold, palladium and platinum from chloride solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2010150231/02A RU2441929C1 (en) | 2010-12-07 | 2010-12-07 | Extraction of gold, palladium and platinum from chloride solution |
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| Publication Number | Publication Date |
|---|---|
| RU2441929C1 true RU2441929C1 (en) | 2012-02-10 |
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| RU2010150231/02A RU2441929C1 (en) | 2010-12-07 | 2010-12-07 | Extraction of gold, palladium and platinum from chloride solution |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112442599A (en) * | 2020-11-24 | 2021-03-05 | 金川集团股份有限公司 | Method for efficiently separating platinum and palladium from gold extraction residual liquid |
| RU2844836C1 (en) * | 2025-01-20 | 2025-08-07 | Акционерное общество "Аксион-Редкие и Драгоценные Металлы" (АО "АРДМ") | Method of gold desorption from hydrochloric acid solutions |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1228989A (en) * | 1984-10-05 | 1987-11-10 | Philip A. Distin | Recovery of precious metals from materials containing same |
| US5074910A (en) * | 1987-11-23 | 1991-12-24 | Chevron Research And Technology Company | Process for recovering precious metals from sulfide ores |
| WO2002053788A1 (en) * | 2000-12-29 | 2002-07-11 | Nichromet Extraction Inc. | Method for the recovery of base and precious metals by extractive chloridation |
| RU2267544C1 (en) * | 2004-07-28 | 2006-01-10 | Государственное образовательное учреждение высшего профессионального образования "Уральский государственный технический университет-УПИ" | Method for extracting of precious metals from solutions by sorption |
| RU2326131C2 (en) * | 2006-06-27 | 2008-06-10 | Иркутский институт химии им. А.Е. Фаворского СО РАН | 1-vinyl-1,2,4-triazole network copolymers with divinyl ester of diethylene glycol as sorbents of noble metals from acidic media and method of obtaining them |
| RU2394109C1 (en) * | 2009-01-11 | 2010-07-10 | Закрытое Акционерное Общество "Уралкалий-Технология" | Procedure for sorption extraction of valuable metals |
-
2010
- 2010-12-07 RU RU2010150231/02A patent/RU2441929C1/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1228989A (en) * | 1984-10-05 | 1987-11-10 | Philip A. Distin | Recovery of precious metals from materials containing same |
| US5074910A (en) * | 1987-11-23 | 1991-12-24 | Chevron Research And Technology Company | Process for recovering precious metals from sulfide ores |
| WO2002053788A1 (en) * | 2000-12-29 | 2002-07-11 | Nichromet Extraction Inc. | Method for the recovery of base and precious metals by extractive chloridation |
| RU2267544C1 (en) * | 2004-07-28 | 2006-01-10 | Государственное образовательное учреждение высшего профессионального образования "Уральский государственный технический университет-УПИ" | Method for extracting of precious metals from solutions by sorption |
| RU2326131C2 (en) * | 2006-06-27 | 2008-06-10 | Иркутский институт химии им. А.Е. Фаворского СО РАН | 1-vinyl-1,2,4-triazole network copolymers with divinyl ester of diethylene glycol as sorbents of noble metals from acidic media and method of obtaining them |
| RU2394109C1 (en) * | 2009-01-11 | 2010-07-10 | Закрытое Акционерное Общество "Уралкалий-Технология" | Procedure for sorption extraction of valuable metals |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112442599A (en) * | 2020-11-24 | 2021-03-05 | 金川集团股份有限公司 | Method for efficiently separating platinum and palladium from gold extraction residual liquid |
| RU2844836C1 (en) * | 2025-01-20 | 2025-08-07 | Акционерное общество "Аксион-Редкие и Драгоценные Металлы" (АО "АРДМ") | Method of gold desorption from hydrochloric acid solutions |
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