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2 079 561

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IPC

(21) (22)

Application

93026150/02, 1993-05-06

(22)

Actual filing date

1993-05-06

(45)

Published

1997-05-20

(72)

Inventor

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]

(73)

Holder

Vostochnyj Nauchno-Issledovatel'Skij Gorno-Metallurgicheskij Institut Tsvetnykh Metallov

METHOD OF OXIDIZED POLYMETALLIC MATERIALS PROCESSING Russian patent published in 1997 - IPC

Abstract RU 2079561 C1

FIELD: non-ferrous metallurgy, processing of oxidized polymetallic materials bearing plumbojarosite. SUBSTANCE: during processing of oxidized polymetallic materials sulfuric acid lixiviation of copper and zinc is exercised, their successive extraction from filtrate with simultaneous regeneration of solvent, lixiviation of lead from paste using acidified chloride solutions, that have at least 200 g/l of sodium chloride under acidity of 30 - 199 g/l. EFFECT: increased extraction of lead from oxidized polymetallic materials bearing plumbojarosite. 3 tbl

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RU 2 079 561 C1

Authors

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]

Dates

1997-05-20—Published

1993-05-06—Filed