METHOD OF RECOVERY OF NOBLE AND NONFERROUS METALS FROM SECONDARY RAW MATERIALS Russian patent published in 2001 - IPC

Abstract RU 2175679 C2

FIELD: extraction of nonferrous and noble metals from secondary raw materials, more particularly electronic scrap metal. SUBSTANCE: in order to simplify production process and increase degree of recovery of nonferrous and noble metals from secondary raw materials, recovery of nonferrous metals is carried out by treating secondary raw materials with mixture of sulfuric and nitric acids and to recover noble metals (gold), organic collector, such as cellulose nitrate varnish, is added to leaching solution. Said varnish absorbs gold into gel-like product and separates it from leaching pulps. EFFECT: more efficient recovery method. 2 tbl

Similar patents RU2175679C2

Title Year Author Number
METHOD OF RECOVERING GOLD FROM GOLD-CONTAINING WASTES 1996
  • Fursov A.V.
  • Ambarov V.V.
  • Panchenko A.F.
  • Chernov V.K.
RU2094496C1
METHOD OF RECOVERING PRECIOUS METALS FROM SECONDARY MATERIAL, PREDOMINANTLY FROM TIN-LEAD SOLDER ALLOY 1996
  • Lolejt S.I.
  • Il'Chenko G.A.
  • Kalmykov Ju.M.
  • Davydova V.Ja.
  • Agafonov O.V.
  • Nikitin V.P.
RU2099434C1
METHOD OF RECOVERING METALS FROM SCRAP 1996
  • Buchikhin E.P.
  • Sysoev Ju.M.
  • Ehrisov A.G.
RU2097438C1
PROCESSING METHOD OF SULPHIDE CONCENTRATES CONTAINING PRECIOUS METALS 2012
  • Rybkin Sergej Georgievich
  • Aksenov Aleksandr Vladimirovich
  • Senchenko Arkadij Evgenevich
  • Beskrovnaya Vera Petrovna
RU2506329C1
METHOD OF PROCESSING GOLD ALLOY 1998
  • Karpukhin A.I.
  • Stel'Kina I.I.
  • Medvedeva L.A.
  • Dement'Ev V.E.
RU2151210C1
TREATMENT METHOD OF ZINC-BEARING GOLDEN-SILVER CYANIC SEDIMENTS 2007
  • Il'Jashevich Viktor Dmitrievich
  • Mamonov Sergej Nikolaevich
  • Efimov Valerij Nikolaevich
  • Vostrikov Vladimir Aleksandrovich
  • Glukhov Vladimir Nikolaevich
  • Gerasimova Ljudmila Konstantinovna
RU2351667C1
METHOD OF EXTRACTION OF NONFERROUS AND NOBLE METALS, MAINLY COPPER AND GOLD, FROM SULFUR WASTE 2005
  • Savenja Nikolaj Vasil'Evich
  • Grebnev Gennadij Sergeevich
  • Zabolotskij Aleksandr Ivanovich
RU2342446C2
METHOD OF REMOVING PLATINUM METALS FROM MATERIAL CONTAINING THESE METALS 1997
  • Lolejt S.I.
  • Kalmykov Ju.M.
  • Davydova V.Ja.
  • Agafonov O.V.
RU2120485C1
METHOD FOR OBTAINING CONCENTRATE OF PRECIOUS METALS FROM PRODUCTS OF ORE PROCESSING AND SECONDARY RAW MATERIALS 2017
  • Kuznetsov Aleksandr Petrovich
  • Korotkov Valerij Alekseevich
  • Ostapchuk Irina Sevastievna
RU2673590C1
ANTIMONY GOLD CATHODE SLUDGE PROCESSING METHOD 2022
  • Baksheev Sergei Panteleimonovich
  • Tupitsyn Sergei Nikitevich
  • Kozhevnikov Oleg Vladislavovich
  • Korsakova Elena Anatolevna
  • Goriunov Zakhar Nikolaevich
RU2789641C1

RU 2 175 679 C2

Authors

Karimov E.V.

Komarova T.Ju.

Semin Ju.M.

Kosov V.G.

Men'Shikov N.A.

Dates

2001-11-10Published

1999-12-01Filed