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2 027 813

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IPC

(21) (22)

Application

93033494/12, 1993-06-29

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Actual filing date

1993-06-29

(45)

Published

1995-01-27

(72)

Inventor

Mutovina M.G.Bondareva T.A.Samsonov N.E.Prosolova V.Z.Grankin Ju.V.Fadeev B.A.Orekhov B.V.Kirsanov V.A.Musinskij V.V.Ivanov V.F.Tatarchuk V.I.Efimova V.N.Tol'Man G.Ju.D'Jakov N.A.Timoshevskij A.N.Dedik Ju.P.Ershov K.M.Najdina R.I.Lapukhin V.Z.Koptev V.M.

(73)

Holder

Kamskij Tselljulozno-Bumazhnyj Kombinat

METHOD OF BISULFITE CELLULOSE PRODUCING Russian patent published in 1995 - IPC

Abstract RU 2027813 C1

FIELD: cellulose industry. SUBSTANCE: method involves addition of wood chips and bisulfite solution prepared on the mixed base into boiling apparatus following by wood chips boiling at increased temperature. Mixture of MgO and Na₂O is used as a source of mixed base taken at the ratio (1:2)-(1: 3). Boiling is carried out at 152-160 C, pH 2.2-3.5 and at the content of total SO₂ 3.5-5.0%. EFFECT: improved method of bisulfite cellulose production. 1 tbl

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RU 2 027 813 C1

Authors

Mutovina M.G.

Bondareva T.A.

Samsonov N.E.

Prosolova V.Z.

Grankin Ju.V.

Fadeev B.A.

Orekhov B.V.

Kirsanov V.A.

Musinskij V.V.

Ivanov V.F.

Tatarchuk V.I.

Efimova V.N.

Tol'Man G.Ju.

D'Jakov N.A.

Timoshevskij A.N.

Dedik Ju.P.

Ershov K.M.

Najdina R.I.

Lapukhin V.Z.

Koptev V.M.

Dates

1995-01-27—Published

1993-06-29—Filed