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2 010 829

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IPC

(21) (22)

Application

5009866/05, 1991-09-23

(22)

Actual filing date

1991-09-23

(45)

Published

1994-04-15

(72)

Inventor

Matjunin N.R.Kalugin E.N.Lisov V.I.Savel'Eva G.P.Evdokimova G.L.

(73)

Holder

Tsentral'Nyj Nauchno-Issledovatel'Skij I Proektnyj Institut Lesokhimicheskoj Promyshlennosti

METHOD OF GALIPOT REPROCESSING Russian patent published in 1994 - IPC

Abstract RU 2010829 C1

FIELD: forest-chemical industry. SUBSTANCE: galipot is diluted with turpentine at ratio 1.0: 1.8-2.0 mas. p. , settled, filtered, clarified (with ortho-phosphoric acid), settled, washed with water, settled and passed through the synthetic zeolite type CaX at 20-150 C. Zeolite is treated preliminary with 8-12% solution of phosphoric acid following by drying of zeolite at 300-350 C and boiling down of colophony. Properties: color at color index is W_g, W_x, acid number is 168 mg KOH/g, softening point is 70-81 C. EFFECT: improved method of galipot reprocessing. 1 tbl

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RU 2 010 829 C1

Authors

Matjunin N.R.

Kalugin E.N.

Lisov V.I.

Savel'Eva G.P.

Evdokimova G.L.

Dates

1994-04-15—Published

1991-09-23—Filed