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2 605 410

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(51)

IPC

C21C7/76(2006-01-01)

C22B9/10(2006-01-01)

B22D7/00(2006-01-01)

(21) (22)

Application

2015119723/02, 2015-05-25

(24)

Start date

2015-05-25

(22)

Actual filing date

2015-05-25

(45)

Published

2016-12-20

(72)

Inventor

Mikheenkov Mikhail ArkadevichNekrasov Ilja VladimirovichSheshukov Oleg JurevichOvchinnikova Ljubov AndreevnaMarshuk Larisa AleksandrovnaEgiazarjan Denis Konstantinovich

(73)

Holder

Federalnoe Gosudarstvennoe Bjudzhetnoe Uchrezhdenie Nauki Institut Metallurgii Uralskogo Otdelenija Rossijskoj Akademii Nauk Uro Ran)

SLAG FORMING MIXTURE FOR STEEL REFINING Russian patent published in 2016 - IPC C21C7/76 C22B9/10 B22D7/00

Abstract RU 2605410 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy and can be used for steel refining in "ladle-furnace" aggregates and vacuum vessels. Slag-forming mixture contains as flux secondary aluminium production wastes and a slag component and additionally sodium bicarbonate at following ratio of components, wt%: sodium bicarbonate 1.0-2.0, wastes from production of secondary aluminium 10.0-30.0, slag component makes up balance. Secondary aluminium production wastes, having following chemical composition, wt%: fine Al metal 5.0-20.0, Al₂O₃ 50.0-75.0, MgO 5.0-12.0, SiO₂ 1.0-10.0, (NaCl+KCl+NaF+KF+Na₂O+K₂O) 5.0-20.0.

EFFECT: achieving low viscosity of slag, high degree of refinement and desulphurisation of steel, resistance of lining.

1 cl, 1 dwg, 3 tbl

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RU 2 605 410 C1

Authors

Mikheenkov Mikhail Arkadevich

Nekrasov Ilja Vladimirovich

Sheshukov Oleg Jurevich

Ovchinnikova Ljubov Andreevna

Marshuk Larisa Aleksandrovna

Egiazarjan Denis Konstantinovich

Dates

2016-12-20—Published

2015-05-25—Filed