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2 236 474

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IPC

(21) (22)

Application

2003120316/02, 2003-07-02

(24)

Start date

2003-07-02

(22)

Actual filing date

2003-07-02

(45)

Published

2004-09-20

(72)

Inventor

Shalygin L.M.Teljakov N.M.Konovalov G.V.

(73)

Holder

Sankt-Peterburgskij Gosudarstvennyj Gornyj Institut Im. G.V. Plekhanova Universitet)

METHOD FOR CONVERTING OF COPPER AND COPPER-NICKEL MATTE Russian patent published in 2004 - IPC

Abstract RU 2236474 C1

FIELD: jet-oxidizing processes used for treating of sulfide copper and copper-nickel materials in non-ferrous metallurgy.

SUBSTANCE: method involves oxygen blowing of sulfide copper and copper-nickel matte, said blowing being provided by means of 3-9 uniformly distributed gas-oxygen jets issued from single inner circle of bath, each jet being inclined at an angle of 15-30 deg to horizontal plane of bath between jet projection and radius of bath at jet issue point. Radius R_r, m, defined by jet incident point, is determined from ratio Rr/R=0.6-0.8, where R is bath radius. Blowing of sulfide copper and copper-nickel matte is performed in stationary metallurgical furnaces with vertical working space.

EFFECT: increased specific output of converting of copper and copper-nickel matte.

1 tbl, 2 dwg

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RU 2 236 474 C1

Authors

Shalygin L.M.

Teljakov N.M.

Konovalov G.V.

Dates

2004-09-20—Published

2003-07-02—Filed