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2 063 480

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IPC

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Application

94003915/02, 1994-02-01

(22)

Actual filing date

1994-02-01

(45)

Published

1996-07-10

(72)

Inventor

Sokolova I.V.Egorov A.E.Vinogradov P.A.Antroshenko V.P.Andreeva G.A.

(73)

Holder

Vsesojuznyj Nauchno-Issledovatel'Skij Institut Gidroliza Rastitel'Nogo Syr'Ja

COMPOSITION FOR REMOVING CORROSION PRODUCTS FROM METALLIC ARTICLE SURFACE Russian patent published in 1996 - IPC

Abstract RU 2063480 C1

FIELD: chemical cleansing metallic surface. SUBSTANCE: composition has, g/l: ortho-phosphoric acid 8-10; lignin oxide 6-8, and modifying addition 0.1-0.2. Urotropin at concentration 0.15-0.20 g/l or 1-st group metal hydroxide at concentration 0.10-0.15 g/l can be used as modifying addition. Composition has nonfiltered oxidized lignin involving humic substances as lignin oxide. EFFECT: decreased cleansing time and cost, enhanced effectiveness. 2 tbl

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RU 2 063 480 C1

Authors

Sokolova I.V.

Egorov A.E.

Vinogradov P.A.

Antroshenko V.P.

Andreeva G.A.

Dates

1996-07-10—Published

1994-02-01—Filed

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