RU2012119313A - METHOD FOR SEPARATION AND CLEANING SILVER - Google Patents

METHOD FOR SEPARATION AND CLEANING SILVER Download PDF

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Publication number
RU2012119313A
RU2012119313A RU2012119313/02A RU2012119313A RU2012119313A RU 2012119313 A RU2012119313 A RU 2012119313A RU 2012119313/02 A RU2012119313/02 A RU 2012119313/02A RU 2012119313 A RU2012119313 A RU 2012119313A RU 2012119313 A RU2012119313 A RU 2012119313A
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RU
Russia
Prior art keywords
silver
sodium nitrite
sodium
carbonate
bicarbonate
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RU2012119313/02A
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Russian (ru)
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RU2514554C2 (en
Inventor
Владимир Алексеевич Шипачев
Original Assignee
Федеральное государственное бюджетное учреждение науки Институт неорганической химии им. А.В. Николаева Сибирского отделения Российской академии наук (ИНХ СО РАН)
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Application filed by Федеральное государственное бюджетное учреждение науки Институт неорганической химии им. А.В. Николаева Сибирского отделения Российской академии наук (ИНХ СО РАН) filed Critical Федеральное государственное бюджетное учреждение науки Институт неорганической химии им. А.В. Николаева Сибирского отделения Российской академии наук (ИНХ СО РАН)
Priority to RU2012119313/02A priority Critical patent/RU2514554C2/en
Publication of RU2012119313A publication Critical patent/RU2012119313A/en
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Publication of RU2514554C2 publication Critical patent/RU2514554C2/en

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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)
  • Paper (AREA)

Abstract

1. Способ отделения и очистки серебра, преимущественно от примесей благородных и цветных металлов, включающий растворение серебросодержащего материала в азотной кислоте, введение нитрита натрия, фильтрование с выделением осадка и последующей переработкой с получением металлического серебра, отличающийся тем, что перед выделением карбоната серебра в азотнокислый раствор при перемешивании вводят нитрит натрия, выдерживают в течение 1 ч, затем вводят карбонат или бикарбонат натрия до рН пульпы в интервале 8-10, выделившуюся соль серебра отделяют от раствора фильтрованием.2. Способ по п.1, отличающийся тем, что нитрит натрия и карбонат или бикарбонат натрия вводят в сухом виде, при этом нитрит натрия берут с 25% - избытком от стехиометрии.1. A method of separating and purifying silver, mainly from impurities of noble and non-ferrous metals, including dissolving a silver-containing material in nitric acid, introducing sodium nitrite, filtering with precipitation and subsequent processing to obtain metallic silver, characterized in that before separating silver carbonate into nitric acid the solution is added with stirring sodium nitrite, kept for 1 h, then sodium carbonate or bicarbonate is introduced until the pH of the pulp is in the range of 8-10, the separated silver salt is separated from the solution by filtration. 2. The method according to claim 1, characterized in that sodium nitrite and sodium carbonate or bicarbonate are introduced in dry form, while sodium nitrite is taken with a 25% excess of stoichiometry.

Claims (2)

1. Способ отделения и очистки серебра, преимущественно от примесей благородных и цветных металлов, включающий растворение серебросодержащего материала в азотной кислоте, введение нитрита натрия, фильтрование с выделением осадка и последующей переработкой с получением металлического серебра, отличающийся тем, что перед выделением карбоната серебра в азотнокислый раствор при перемешивании вводят нитрит натрия, выдерживают в течение 1 ч, затем вводят карбонат или бикарбонат натрия до рН пульпы в интервале 8-10, выделившуюся соль серебра отделяют от раствора фильтрованием.1. The method of separation and purification of silver, mainly from impurities of precious and non-ferrous metals, including the dissolution of silver-containing material in nitric acid, the introduction of sodium nitrite, filtration with precipitation and subsequent processing to obtain metallic silver, characterized in that before the allocation of silver carbonate in nitric acid the solution is added with stirring sodium nitrite, incubated for 1 h, then injected with sodium carbonate or bicarbonate to a pulp pH in the range of 8-10, the precipitated silver salt from elyayut from the solution by filtration. 2. Способ по п.1, отличающийся тем, что нитрит натрия и карбонат или бикарбонат натрия вводят в сухом виде, при этом нитрит натрия берут с 25% - избытком от стехиометрии. 2. The method according to claim 1, characterized in that the sodium nitrite and sodium carbonate or sodium bicarbonate are introduced in dry form, while sodium nitrite is taken with a 25% excess of stoichiometry.
RU2012119313/02A 2012-05-11 2012-05-11 Method of cleaning of silver-bearing material RU2514554C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2012119313/02A RU2514554C2 (en) 2012-05-11 2012-05-11 Method of cleaning of silver-bearing material

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Application Number Priority Date Filing Date Title
RU2012119313/02A RU2514554C2 (en) 2012-05-11 2012-05-11 Method of cleaning of silver-bearing material

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RU2012119313A true RU2012119313A (en) 2013-11-20
RU2514554C2 RU2514554C2 (en) 2014-04-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114293023A (en) * 2021-12-28 2022-04-08 昆山鸿福泰环保科技有限公司 Method for recovering silver and palladium from silver and palladium-containing material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2680552C1 (en) * 2018-03-30 2019-02-22 Акционерное общество "Уралэлектромедь" Method for producing silver and platinum group metals

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3658510A (en) * 1970-04-14 1972-04-25 American Metal Climax Inc Recovery of silver from electrolytic copper refinery slimes
US4287044A (en) * 1980-03-31 1981-09-01 Silver Systems, Ltd. Silver recovery apparatus
DD253048A1 (en) * 1986-10-01 1988-01-06 Funk A Bergbau Huettenkombinat METHOD FOR RECOVERING EDEL AND COMPOUND METALS FROM SEKUNDAER RAW MATERIALS
EP0465401A1 (en) * 1990-03-23 1992-01-08 Spac S.A. Apparatus for recovering silver or other precious metals dissolved in a liquid
RU2034063C1 (en) * 1992-06-15 1995-04-30 Красноярский завод цветных металлов Method of silver purification
RU2280086C2 (en) * 2004-10-18 2006-07-20 ОАО "Горно-металлургическая компания "Норильский никель" Refined silver producing method
RU2378398C2 (en) * 2008-03-11 2010-01-10 Открытое акционерное общество "Красноярский завод цветных металлов имени В.Н. Гулидова" (ОАО "Красцветмет") Method of silver receiving

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114293023A (en) * 2021-12-28 2022-04-08 昆山鸿福泰环保科技有限公司 Method for recovering silver and palladium from silver and palladium-containing material

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Effective date: 20170512