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2 008 253

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IPC

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Application

4907302/26, 1991-01-31

(22)

Actual filing date

1991-01-31

(45)

Published

1994-02-28

(72)

Inventor

Gal'Perina S.Ja.Talkhaev M.P.Borisova L.I.Kadyrbekov R.N.Rudnjanskij L.M.Slatova O.V.Kazova R.A.

(73)

Holder

Tol'Jattinskij Nauchno-Issledovatel'Skij Otdel Leningradskogo Gosudarstvennogo Nauchno-Issledovatel'Skogo I Proektnogo Instituta Osnovnoj Khimicheskoj Promyshlennosti

METHOD OF PHOSPHORITE PELLETS HEAT TREATMENT Russian patent published in 1994 - IPC

Abstract RU 2008253 C1

FIELD: chemical industry. SUBSTANCE: pellets are dried at 220-280 C with the help of gaseous heat-carrier. Then temperature is increased to calcination temperature. Sustaining time at 800-900 C is 5-6 min, sustaining time at 900-1000 C is 9-10 min. EFFECT: improves efficiency of the method. 1 tbl

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RU 2 008 253 C1

Authors

Gal'Perina S.Ja.

Talkhaev M.P.

Borisova L.I.

Kadyrbekov R.N.

Rudnjanskij L.M.

Slatova O.V.

Kazova R.A.

Dates

1994-02-28—Published

1991-01-31—Filed

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