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2 801 974

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C1

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IPC

C22B19/30(2006-01-01)

C22B7/02(2006-01-01)

C22B1/24(2006-01-01)

C22B1/244(2006-01-01)

C22B1/245(2006-01-01)

(21) (22)

Application

2023101158, 2023-01-20

(24)

Start date

2023-01-20

(22)

Actual filing date

2023-01-20

(45)

Published

2023-08-21

(72)

Inventor

Khajdarov Timur BakhtierovichKhajdarov Bekzod BakhtierovichLysov Dmitrij ViktorovichSuvorov Dmitrij SergeevichKuznetsov Denis ValerevichVolokhov Sergej Vadimovich

(73)

Holder

Federalnoe Gosudarstvennoe Avtonomnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Issledovatelskij Tekhnologicheskij Universitet

METHOD FOR REMOVING ZINC FROM ZINC-CONTAINING ELECTROMETALLURGICAL WASTES Russian patent published in 2023 - IPC C22B19/30 C22B7/02 C22B1/24 C22B1/244 C22B1/245 

Abstract RU 2801974 C1

FIELD: metallurgy.

SUBSTANCE: removal of zinc from the zinc-containing electrometallurgical wastes includes briquetting of wastes, heating them in a tube furnace reactor using hydrogen as a reducing agent, sublimation of zinc into the gas phase, cooling of exhaust gases and gaseous zinc. Waste briquetting is carried out together with coke dust in the amount of 10% and lignosulfonate (LST) binder in the amount of 3% by weight of the zinc-containing waste. Briquettes are heated in a tube furnace at a temperature of 800°C, holding time 4 h, furnace heating rate 20°C/min.

EFFECT: increased efficiency of extraction of zinc from waste, as well as iron content increase from 34.9 to 78.6%.

2 cl, 1 ex

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RU 2 801 974 C1

Authors

Khajdarov Timur Bakhtierovich

Khajdarov Bekzod Bakhtierovich

Lysov Dmitrij Viktorovich

Suvorov Dmitrij Sergeevich

Kuznetsov Denis Valerevich

Volokhov Sergej Vadimovich

Dates

2023-08-21—Published

2023-01-20—Filed

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