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RU96113769A - HYDROMETALLURGICAL METHOD FOR SEPARATING GOLD, SILVER, PLATINUM AND PALLADIUM FROM THE ALLOY "DORE" WITH SIMULTANEOUS THEIR ENRICHMENT - Google Patents

HYDROMETALLURGICAL METHOD FOR SEPARATING GOLD, SILVER, PLATINUM AND PALLADIUM FROM THE ALLOY "DORE" WITH SIMULTANEOUS THEIR ENRICHMENT

Info

Publication number
RU96113769A
RU96113769A RU96113769/02A RU96113769A RU96113769A RU 96113769 A RU96113769 A RU 96113769A RU 96113769/02 A RU96113769/02 A RU 96113769/02A RU 96113769 A RU96113769 A RU 96113769A RU 96113769 A RU96113769 A RU 96113769A
Authority
RU
Russia
Prior art keywords
silver
solution
precipitated
palladium
platinum
Prior art date
Application number
RU96113769/02A
Other languages
Russian (ru)
Other versions
RU2096505C1 (en
Inventor
С.И. Лолейт
Г.А. Ильченко
Ю.М. Калмыков
В.Я. Давыдова
О.В. Агафонов
В.П. Никитин
Original Assignee
Щелковский завод вторичных драгоценных металлов
Filing date
Publication date
Application filed by Щелковский завод вторичных драгоценных металлов filed Critical Щелковский завод вторичных драгоценных металлов
Priority to RU96113769A priority Critical patent/RU2096505C1/en
Priority claimed from RU96113769A external-priority patent/RU2096505C1/en
Application granted granted Critical
Publication of RU2096505C1 publication Critical patent/RU2096505C1/en
Publication of RU96113769A publication Critical patent/RU96113769A/en

Links

Claims (3)

Гидрометаллургический способ отделения золота, серебра, платины и палладия из содержащего их материала с одновременным их обогащением, преимущественно из сплава "ДОРЕ", включающий растворение, фильтрацию с отделением твердого компонента, обработку фильтрата восстановителем, отличающийся тем, что перед растворением проводят расплавление исходного материала и гранулирование, растворение гранул ведут в растворе азотной кислоты, из полученного раствора осуществляют осаждение примесей в виде гидроокисей, после отделения осадка фильтрацией проводят его прокалку, затем ведут растворение в растворе царской водки с последующим удалением избытка окислителя мочевиной или кальцинированной содой, и после фильтрации из полученного раствора осуществляют осаждение золота сернокислым железом, а из обеззолоченного раствора ведут осаждение платины и палладия тиосульфатом натрия, полученный серебросодержащий раствор после отделения гидроокисей направляют на электролиз или проводят осаждение из него серебра в виде хлористого серебра с последующей плавкой его в слитки.The hydrometallurgical method of separating gold, silver, platinum and palladium from the material containing them while enriching them, mainly from the DORE alloy, including dissolving, filtering with separation of the solid component, treating the filtrate with a reducing agent, characterized in that the starting material is melted before dissolution and granulation, dissolution of the granules is carried out in a solution of nitric acid, from the resulting solution, impurities are precipitated in the form of hydroxides, after separation of the precipitate by filtration it is calcined, then dissolved in a solution of aqua regia followed by removal of excess oxidizing agent with urea or soda ash, and after filtration from the resulting solution, gold is precipitated with iron sulfate, and platinum and palladium are precipitated from the anhydrous solution with sodium thiosulfate, the resulting silver-containing solution after Hydroxide compartments are sent for electrolysis or silver is precipitated from it in the form of silver chloride, followed by its melting into ingots. 2. Способ по п. 1, отличающийся тем, что растворение в азотной кислоте проводят при Т : Ж равном 1 : 1. 2. The method according to p. 1, characterized in that the dissolution in nitric acid is carried out at T: W equal to 1: 1. 3. Способ по п. 1, отличающийся тем, что прокаливание примесей в виде гидроокисей ведут при 400-500°С в течение 10-15 ч. 3. The method according to p. 1, characterized in that the calcination of impurities in the form of hydroxides is carried out at 400-500 ° C for 10-15 hours
RU96113769A 1996-07-05 1996-07-05 Hydrometallurgical method for separating gold, silver, platinum, and palladium from material containing thereof with simultaneous enrichment of metals RU2096505C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU96113769A RU2096505C1 (en) 1996-07-05 1996-07-05 Hydrometallurgical method for separating gold, silver, platinum, and palladium from material containing thereof with simultaneous enrichment of metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU96113769A RU2096505C1 (en) 1996-07-05 1996-07-05 Hydrometallurgical method for separating gold, silver, platinum, and palladium from material containing thereof with simultaneous enrichment of metals

Publications (2)

Publication Number Publication Date
RU2096505C1 RU2096505C1 (en) 1997-11-20
RU96113769A true RU96113769A (en) 1998-03-10

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RU96113769A RU2096505C1 (en) 1996-07-05 1996-07-05 Hydrometallurgical method for separating gold, silver, platinum, and palladium from material containing thereof with simultaneous enrichment of metals

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107475528A (en) * 2017-08-23 2017-12-15 洛阳市鸿达科技有限公司 A kind of environment-friendly type puies forward golden agent and its production technology

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