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2 097 139

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C1

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IPC

(21) (22)

Application

96115100/03, 1996-08-13

(22)

Actual filing date

1996-08-13

(45)

Published

1997-11-27

(72)

Inventor

Potashnik B.A.Avakjan Z.A.Karavajko G.I.Georgievskij A.F.Mager V.O.

(73)

Holder

Jelstaun Korporejshn N.V.

METHOD OF DRESSING CARBONATE-CONTAINING PHOSPHATE RAW MATERIAL Russian patent published in 1997 - IPC

Abstract RU 2097139 C1

FIELD: mineral dressing. SUBSTANCE: method includes leaching carbonates (calcite and dolomite) by treating crushed raw material with culture fluid of microorganisms. As such, organic acid-containing culture fluid of microorganisms-producers with pH 1.4-3.0 are utilized. Treatment duration is 0.5 to 1.5 h and raw material to culture fluid ratio 1.5 to 1.15. method may be applied to dressing calcium- and magnesium-containing ores. EFFECT: enhanced efficiency of process.

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RU 2 097 139 C1

Authors

Potashnik B.A.

Avakjan Z.A.

Karavajko G.I.

Georgievskij A.F.

Mager V.O.

Dates

1997-11-27—Published

1996-08-13—Filed

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