RU2205239C2 - Method for intensifying sorption of noble metals on thio ether and aminothio ether type sorbents - Google Patents
Method for intensifying sorption of noble metals on thio ether and aminothio ether type sorbents Download PDFInfo
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- RU2205239C2 RU2205239C2 RU2001121211/02A RU2001121211A RU2205239C2 RU 2205239 C2 RU2205239 C2 RU 2205239C2 RU 2001121211/02 A RU2001121211/02 A RU 2001121211/02A RU 2001121211 A RU2001121211 A RU 2001121211A RU 2205239 C2 RU2205239 C2 RU 2205239C2
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- sorption
- ether
- aminothio
- intensifying
- noble metals
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 10
- 239000002594 sorbent Substances 0.000 title claims description 12
- 229910000510 noble metal Inorganic materials 0.000 title abstract description 5
- 150000003568 thioethers Chemical class 0.000 title description 3
- RJCQMRTZKKPRPL-UHFFFAOYSA-N s-aminosulfanyloxythiohydroxylamine Chemical compound NSOSN RJCQMRTZKKPRPL-UHFFFAOYSA-N 0.000 title 1
- 239000010970 precious metal Substances 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 229910001516 alkali metal iodide Inorganic materials 0.000 claims description 2
- 125000000446 sulfanediyl group Chemical group *S* 0.000 claims description 2
- PFRUBEOIWWEFOL-UHFFFAOYSA-N [N].[S] Chemical compound [N].[S] PFRUBEOIWWEFOL-UHFFFAOYSA-N 0.000 claims 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract description 16
- 239000000243 solution Substances 0.000 abstract description 12
- 229910052697 platinum Inorganic materials 0.000 abstract description 10
- 238000000605 extraction Methods 0.000 abstract description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052737 gold Inorganic materials 0.000 abstract description 4
- 239000010931 gold Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 229910001385 heavy metal Inorganic materials 0.000 abstract 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 229910052740 iodine Inorganic materials 0.000 abstract 1
- 239000011630 iodine Substances 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- -1 platinum group metals Chemical class 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MXVVJAPMTOADGU-UHFFFAOYSA-N 1,3,5-dithiazinane Chemical compound C1NCSCS1 MXVVJAPMTOADGU-UHFFFAOYSA-N 0.000 description 1
- CSSZUJQOBYMFGV-UHFFFAOYSA-N 5-[2-(1,3,5-dithiazinan-5-yl)ethyl]-1,3,5-dithiazinane Chemical compound C1SCSCN1CCN1CSCSC1 CSSZUJQOBYMFGV-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000005206 flow analysis Methods 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 235000009518 sodium iodide Nutrition 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
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- 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
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- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Изобретение относится к гидрометаллургии благородных металлов, в частности к способам извлечения золота и металлов платиновой группы из растворов. The invention relates to hydrometallurgy of precious metals, in particular to methods for extracting gold and platinum group metals from solutions.
Известные эффективные сорбенты благородных металлов ряда тио- и аминотиоэфиров - полимерный тиоэфир (1. Известия ВУЗов. Серия "Химия и химическая технология", 1988, т. 31, 65, с. 3), полидитиопропан (2. Патент РФ 2134307), 1,2-бис-(пергидро-1,3,5-дитиазин-5-ил)этан. (3. Патент РФ 2102508) и их аналоги обладают высокой сорбционной емкостью, устойчивостью в сильнокислых средах и достаточной селективностью, что позволяет им находить применение в ряде процессов извлечения благородных металлов, в частности в аналитической химии. Known effective sorbents of noble metals of a number of thio- and aminothioesters are polymer thioether (1. University News. Series "Chemistry and Chemical Technology", 1988, v. 31, 65, p. 3), polydithiopropane (2. RF Patent 2134307), 1 , 2-bis- (perhydro-1,3,5-dithiazin-5-yl) ethane. (3. RF patent 2102508) and their analogues have high sorption capacity, stability in strongly acidic environments and sufficient selectivity, which allows them to be used in a number of precious metal extraction processes, in particular in analytical chemistry.
Наиболее близким по технической сущности к заявляемому способу является способ извлечения драгоценных металлов из растворов с помощью полимерного тиоэфира (Известия ВУЗов. Серия "Химия и химическая технология", 1988, т. 31, 65, с. 3), в котором раствор извлекаемого металла контактирует с неионообменным сорбентом, после чего сорбент-концентрат сжигают. The closest in technical essence to the claimed method is a method for extracting precious metals from solutions using polymer thioether (Izvestia VUZov. Series "Chemistry and Chemical Technology", 1988, v. 31, 65, p. 3), in which the solution of the extracted metal is in contact with a nonionic exchange sorbent, after which the sorbent concentrate is burned.
Однако достаточно значительное время контакта сорбентов с раствором, требуемое для достижения полноты извлечения элементов (2-10 ч), является препятствием к применению указанных сорбентов в динамических схемах технологических процессов. However, a sufficiently significant contact time of the sorbents with the solution, required to achieve the completeness of the extraction of elements (2-10 hours), is an obstacle to the use of these sorbents in dynamic schemes of technological processes.
Известен технологический прием повышения скорости извлечения платиновых металлов для динамического концентрирования в целях анализа (Сорбционное концентрирование платиновых металлов и золота в проточных системах анализа. Л. В. Богачева, И.А.Ковалев и др. 17 Международное Черняевское совещание по химии, анализу и технологии платиновых металлов, Москва, 17-19 апр. 2001 г. Тезисы докладов, М., ГЕОХИ, 2001). Суть указанного приема - разбавление сильнокислых растворов платиновых металлов перед подачей в колонну с сорбентом. Недостаток этого способа повышения эффективности сорбции - усложнение последующих операций с отработанным раствором вследствие повышения объема стоков. There is a known technique for increasing the rate of extraction of platinum metals for dynamic concentration for analysis purposes (Sorption concentration of platinum metals and gold in flow analysis systems. L. V. Bogacheva, I. A. Kovalev and others. 17 International Chernyaev meeting on chemistry, analysis and technology platinum metals, Moscow, April 17-19, 2001. Abstracts, M., GEOKHI, 2001). The essence of this technique is the dilution of strongly acidic solutions of platinum metals before being fed into a column with a sorbent. The disadvantage of this method of increasing the efficiency of sorption is the complication of subsequent operations with the spent solution due to increased volume of effluents.
Предложен способ извлечения благородных металлов из растворов, включающий сорбцию на серо-, серазотсодержащих сорбентах типа тио-, аминотиоэфиров, согласно изобретению, перед сорбцией в раствор добавляют иодиды щелочных металлов. A method for the extraction of precious metals from solutions is proposed, including sorption on sulfur-, sulfur-containing sorbents of the thio-, aminothioesters type, according to the invention, before sorption, alkali metal iodides are added to the solution.
Техническим результатом предложенного способа является сокращение времени контакта, необходимого для извлечения золота, платины и платиноидов. Сокращение времени контакта с нескольких часов до минут открывает возможность применения указанных сорбентов в динамических схемах процессов извлечения металлов из растворов. Изобретение иллюстрируется примерами:
Пример 1
В модельный раствор, содержащий 30% соляной кислоты и 40 мг платины, добавляли 160 мг иодида натрия, растворенного в минимальном количестве воды, после чего вносили в раствор 200 мг сорбента 1,2-бис-(пергидро-1,3,5-дитиазин-5-ил) этана при комнатной температуре и выдерживали при данной температуре 10 мин при интенсивном перемешивании. По истечении заданного времени твердую фазу отфильтровывали, промывали водой на фильтре, высушивали и определяли содержание платины в сорбенте-концентрате. Найдено: 38 мг платины. Степень извлечения платины -95%.The technical result of the proposed method is to reduce the contact time required to extract gold, platinum and platinoids. Reducing the contact time from several hours to minutes opens the possibility of using these sorbents in dynamic schemes of the processes of metal extraction from solutions. The invention is illustrated by examples:
Example 1
To a model solution containing 30% hydrochloric acid and 40 mg of platinum, 160 mg of sodium iodide dissolved in a minimum amount of water was added, after which 200 mg of the sorbent 1,2-bis- (perhydro-1,3,5-dithiazine was added -5-yl) ethane at room temperature and kept at this temperature for 10 minutes with vigorous stirring. After a predetermined time, the solid phase was filtered off, washed with water on a filter, dried and the platinum content in the sorbent concentrate was determined. Found: 38 mg platinum. The recovery rate of platinum is -95%.
Примеры 2-5 выполнены аналогично примеру 1, но при различных условиях, указанных в таблице. Examples 2-5 are performed analogously to example 1, but under various conditions indicated in the table.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2001121211/02A RU2205239C2 (en) | 2001-07-27 | 2001-07-27 | Method for intensifying sorption of noble metals on thio ether and aminothio ether type sorbents |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2001121211/02A RU2205239C2 (en) | 2001-07-27 | 2001-07-27 | Method for intensifying sorption of noble metals on thio ether and aminothio ether type sorbents |
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| Publication Number | Publication Date |
|---|---|
| RU2001121211A RU2001121211A (en) | 2003-05-27 |
| RU2205239C2 true RU2205239C2 (en) | 2003-05-27 |
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| RU2001121211/02A RU2205239C2 (en) | 2001-07-27 | 2001-07-27 | Method for intensifying sorption of noble metals on thio ether and aminothio ether type sorbents |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2590806C2 (en) * | 2014-12-09 | 2016-07-10 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский технологический университет "МИСиС" | Method for sorption extraction of selenium, tellurium and arsenic from aqueous solutions |
| RU2824510C1 (en) * | 2023-12-27 | 2024-08-08 | Федеральное государственное бюджетное учреждение науки Институт общей и неорганической химии им. Н.С. Курнакова Российской академии наук (ИОНХ РАН) | Method for sorption extraction of rare-earth elements in presence of fluoride ions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4319923A (en) * | 1979-12-26 | 1982-03-16 | Western Electric Co., Inc. | Recovery of gold and/or palladium from an iodide-iodine etching solution |
| RU2102508C1 (en) * | 1994-11-04 | 1998-01-20 | Акционерное общество "Ставропольполимер" | Method of recovering gold and palladium from solutions |
| RU2134307C1 (en) * | 1997-11-12 | 1999-08-10 | Институт нефтехимии и катализа АН Республики Башкортостан | Method of noble metals recovery from solutions |
-
2001
- 2001-07-27 RU RU2001121211/02A patent/RU2205239C2/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4319923A (en) * | 1979-12-26 | 1982-03-16 | Western Electric Co., Inc. | Recovery of gold and/or palladium from an iodide-iodine etching solution |
| RU2102508C1 (en) * | 1994-11-04 | 1998-01-20 | Акционерное общество "Ставропольполимер" | Method of recovering gold and palladium from solutions |
| RU2134307C1 (en) * | 1997-11-12 | 1999-08-10 | Институт нефтехимии и катализа АН Республики Башкортостан | Method of noble metals recovery from solutions |
Non-Patent Citations (2)
| Title |
|---|
| Известия ВУЗов. Химия и химическая технология, 1988, т. 31, с. 3. * |
| Реферативный журнал "Химия". - М.: ВИНИТИ, 1986, реферат 10 Л 67 П. * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2590806C2 (en) * | 2014-12-09 | 2016-07-10 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский технологический университет "МИСиС" | Method for sorption extraction of selenium, tellurium and arsenic from aqueous solutions |
| RU2824510C1 (en) * | 2023-12-27 | 2024-08-08 | Федеральное государственное бюджетное учреждение науки Институт общей и неорганической химии им. Н.С. Курнакова Российской академии наук (ИОНХ РАН) | Method for sorption extraction of rare-earth elements in presence of fluoride ions |
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