METHOD OF EXTRACTION OF NOBLE METALS FROM ORE AND CONCENTRATE Russian patent published in 1997 - IPC

Abstract RU 2071980 C1

FIELD: hydrometallurgy. SUBSTANCE: noble metals from ores or concentrates were leached with 1-40 wt.-% salt aqueous solution at pH = 3-10 in the presence of oxidizing agent for at least 60 min. Pulp is regenerated, concentrated sludge is washed off with water. The formed solution is concentrated, regenerated and fed to leaching of the parent material. Gold and/or silver is precipitated from the solution obtained after pulp filtration with amine reagents, electrochemically or on ion-exchange resin. Then solution is regenerated and fed to ore or concentrate leaching again. EFFECT: improved method of noble metal extraction. 11 cl

Similar patents RU2071980C1

Title	Year	Author	Number
METHOD TO EXTRACT PRECIOUS METALS FROM ORES AND CONCENTRATES	1991	Abramina Elena Vasil'Evna	RU2025514C1
PROCEDURE FOR EXTACTION OF METALS FROM GOLD CONTAINING SULPHIDE-OXIDISED COPPER ORES	2009	Krylova Ljubov' Nikolaevna Kanarskij Aleksandr Viktorovich Adamov Ehduard Vladimirovich Travnikova Ol'Ga Nikolaevna	RU2428493C1
METHOD OF GOLD RECOVERY FROM SOLID SILVER-CONTAINING SULFIDE ORES OF CONCENTRATES AND OF SECONDARY RAW MATERIALS	2017	Merkulov Igor Aleksandrovich Tikhomirov Denis Valerevich Zhabin Andrej Yurevich Apalkov Gleb Alekseevich Smirnov Sergej Ivanovich Dyachenko Anton Sergeevich Malysheva Viktoriya Andreevna Kudrina Yuliya Veniaminovna	RU2657254C1
AQUEOUS SOLUTION FOR LEACHING PRECIOUS METALS (VERSIONS)	1990	Akhmad Dehdgar[Us]	RU2102507C1
METHOD OF OXIDIZED POLYMETALLIC MATERIALS PROCESSING	1993	Ehnns Ivan Ivanovich[Kz] Sycheva Elena Alekseevna[Kz] Akylbekov Alimkhan[Kz] Palkina Valentina Iosifovna[Kz] Kushakova Larisa Borisovna[Kz] Kislitsyn Nikolaj Andreevich[Kz] Komlev Vjacheslav Mikhajlovich[Kz] Timoshenko Vladimir Georgievich[Kz] Timoshenko Tat'Jana Andreevna[Kz] Chertkov Jurij Aleksandrovich[Kz]	RU2079561C1
METHOD OF COMPLEX PROCESSING OF PYRITIC RAW MATERIALS	2016	Menkin Leonid Ivanovich Skurida Dmitrij Aleksandrovich Zazimko Vladislav Anatolevich Grigorovich Marina Mikhajlovna Sukhikh Valentin Anatolevich	RU2627835C2
SOLUTION FOR LEACHING ORE MINERALS AND CONCENTRATES	1991	Ivashov Valerij Ivanovich[Uz]	RU2061768C1
METHOD FOR IODINE-IODIDE PROCESSING OF GOLD-CONTAINING MATERIAL	2019	Buchikhin Evgenij Petrovich Palval Igor Alekseevich Bakhir Vitold Mikhajlovich Nesterov Konstantin Nikolaevich	RU2702250C1
METHOD OF PROCESSING COPPER-ELECTROLYTE SLUDGES	1997	Shalaeva Tat'Jana Sergeevna[Kz] Juzhanin Aleksej Vasil'Evich[Kz] Kremko Evgenij Georgievich[Ru] Plekhanov Konstantin Anatol'Evich[Ru] Kozitsyn Andrej Anatol'Evich[Ru]	RU2109823C1
EXTRACTION METHOD OF METALS FROM METAL-CONTAINING MINERAL RAW MATERIAL	2010	Fomin Aleksandr Mikhajlovich Khadartsev Oleg Misostovich Tjuremnov Aleksandr Vadimovich	RU2476610C2

RU 2 071 980 C1

Authors

Abramina E.V.

Darienko A.P.

Zarochintsev A.I.

Dates

1997-01-20—Published

1992-12-29—Filed