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2 111 260

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(51)

IPC

(21) (22)

Application

5010610/02, 1990-05-30

(22)

Actual filing date

1990-05-30

(45)

Published

1998-05-20

(72)

Inventor

Robin Dzhon Behtterkhem[Au]Roderik Makferson Grant[Au]Dzhejms Vinsent Khehpp[Au]Glenn Ehshli Til[Au]

(73)

Holder

Si Ar Ehj Servisiz Limited

METHOD OF PREHEATING AND REDUCING METAL OXIDES Russian patent published in 1998 - IPC

Abstract RU 2111260 C1

FIELD: metallurgy. SUBSTANCE: invention relates to preheating and reducing ore metal oxides using high-temperature release gases. Ore particles are charged into chamber simultaneously with hot reduction gas, its temperature being superior to metal oxide viscosity temperature. Particles are rapidly heated and assume stream structure minimizing contact of particles with each other and with surface of chamber. The chamber is elongated in direction of stream travel and is described in specification. Hot release gases may originate from fusion reactor and contain high concentrations of carbon monoxide and hydrogen. To avoid agglomeration and skull formation, ore particles heated to temperature superior to metal oxide viscosity temperature are then sharply cooled to temperature below indicated level. EFFECT: enhanced process efficiency. 10 cl, 3 dwg

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RU 2 111 260 C1

Authors

Robin Dzhon Behtterkhem[Au]

Roderik Makferson Grant[Au]

Dzhejms Vinsent Khehpp[Au]

Glenn Ehshli Til[Au]

Dates

1998-05-20—Published

1990-05-30—Filed