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2 016 865

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C1

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IPC

(21) (22)

Application

4891655/33, 1990-12-17

(22)

Actual filing date

1990-12-17

(45)

Published

1994-07-30

(72)

Inventor

Gol'Dinov A.L.Denisov A.K.Burin G.M.Abramov O.B.Afanasenko E.V.Fedoriv M.P.Sysoev G.V.

(73)

Holder

Kirovo-Chepetskij Khimicheskij Kombinat

METHOD OF POLISHING SOLUTION PREPARING Russian patent published in 1994 - IPC

Abstract RU 2016865 C1

FIELD: glass industry. SUBSTANCE: solution for chemical glass polishing is prepared by mixing of sulfuric acid with fluorine-containing reagent. The source of latter is a mixture of hydrofluoric and hydrochloric acids. Concentration of hydrogen fluoride in this mixture is maintained at the range 20-50%. Sulfuric acid is mixed by two steps: firstly up to mass ratio HF/HF/H2SO4 = 0.55-0.9, and then - the residual quantity. EFFECT: improved method of preparing. 2 cl, 2 tbl

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RU 2 016 865 C1

Authors

Gol'Dinov A.L.

Denisov A.K.

Burin G.M.

Abramov O.B.

Afanasenko E.V.

Fedoriv M.P.

Sysoev G.V.

Dates

1994-07-30—Published

1990-12-17—Filed

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