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2 778 335

(13)

(51)

IPC

C22B7/00(2006-01-01)

C22B19/20(2006-01-01)

C22B3/08(2006-01-01)

(21) (22)

Application

2021132935, 2021-11-12

(24)

Start date

2021-11-12

(22)

Actual filing date

2021-11-12

(45)

Published

2022-08-17

(72)

Inventor

Lobanov Vladimir GennadevichPolygalov Sergei EduardovichSokolov Lev ViktorovichKonovalov Mikhail VasilevichKolmachikhina Olga BorisovnaMakovskaia Olga Iurevna

(73)

Holder

Federal State Autonomous Educational Institution Of Higher Education Ural Federal University Named After The First President Of Russia B.N.Yeltsin

METHOD FOR PROCESSING ZINC CAKES Russian patent published in 2022 - IPC C22B7/00 C22B19/20 C22B3/08

Abstract RU 2778335 C1

FIELD: non-ferrous metallurgy.

SUBSTANCE: invention relates to non-ferrous metallurgy and can be used in the processing of cakes formed during the extraction of zinc from sulfide concentrates. Zinc cakes are leached with the application of microwave energy at a temperature of 75°C using a solution containing 100 g/l of sulfuric acid in the presence of a reducing agent, as which sodium formiate is used, and sodium chloride with a concentration of 5-20 g/l.

EFFECT: method makes it possible to intensify the leaching process.

1 cl, 2 tbl, 1 ex

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RU 2 778 335 C1

Authors

Lobanov Vladimir Gennadevich

Polygalov Sergei Eduardovich

Sokolov Lev Viktorovich

Konovalov Mikhail Vasilevich

Kolmachikhina Olga Borisovna

Makovskaia Olga Iurevna

Dates

2022-08-17—Published

2021-11-12—Filed