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Application

5050962/04, 1992-04-01

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Actual filing date

1992-04-01

(45)

Published

1998-05-10

(72)

Inventor

Mel'Nik P.V.Beskopyl'Nyj A.M.Korolev Ju.V.Klimenko S.I.Loskutov L.G.Krokhin N.P.Raskin Ju.E.

(73)

Holder

Nauchno-Issledovatel'Skij Tsentr S Opytnym Zavodom Volgogradskogo Proizvodstvennogo Ob"Edinenija

METHOD FOR RECOVERING PHOSPHORIC ACID ETHERS FROM SPENT THICKENED HYDRAULIC FLUIDS Russian patent published in 1998 - IPC

Abstract RU 2110520 C1

FIELD: environmental control. SUBSTANCE: spent thickened hydraulic fluids are treated with 70-85-% aqueous solution of alcohol C1 - C3.. Recovery percentage reaches 96.6%, acid number is 0.04 ml/KOH/g. EFFECT: higher efficiency. 3 cl

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RU 2 110 520 C1

Authors

Mel'Nik P.V.

Beskopyl'Nyj A.M.

Korolev Ju.V.

Klimenko S.I.

Loskutov L.G.

Krokhin N.P.

Raskin Ju.E.

Dates

1998-05-10—Published

1992-04-01—Filed

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