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2 047 635

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IPC

(21) (22)

Application

94027325/05, 1994-07-20

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Actual filing date

1994-07-20

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Published

1995-11-10

(72)

Inventor

Aleksandrova T.N.Gorjunova T.G.Zlobin O.V.Matjunin N.R.Paderin V.Ja.Pashin V.A.Romanina T.A.Rjabchikov S.N.Smirnova L.I.Chistjakova Z.L.Troitskaja T.I.

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Holder

Aktsionernoe Obshchestvo

METHOD OF GALIPOT PROCESSING Russian patent published in 1995 - IPC

Abstract RU 2047635 C1

FIELD: natural resin processing. SUBSTANCE: method of galipot processing involves dilution with turpentine, melting with ortho-phosphoric acid addition followed by filtration, exfoliation and turpentine isolation, washing separated turpentine and its boiling down. Melting is carried out in the presence of sulfurous acid or sodium formaldehyde sulfoxylate at concentration 0.05-1.0% of galipot mass at the ratio of ortho-phosphoric acid to sulfurous acid or sodium formaldehyde sulfoxylate from 0.62:1 to 12.4:1, respectively. Turpentine washing is carried out with 0.01-0.1% alkaline aqueous solution at the liquid modulus (3-5):1. Invention can be used in colophony-turpentine plants of wood chemical industry at galipot processing. EFFECT: improved color index, prevention of colophony crystallization.

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RU 2 047 635 C1

Authors

Aleksandrova T.N.

Gorjunova T.G.

Zlobin O.V.

Matjunin N.R.

Paderin V.Ja.

Pashin V.A.

Romanina T.A.

Rjabchikov S.N.

Smirnova L.I.

Chistjakova Z.L.

Troitskaja T.I.

Dates

1995-11-10—Published

1994-07-20—Filed