METHOD FOR BUILDING UP REDUCED PRESSURE WITHIN ENCLOSED SPACE Russian patent published in 1995 - IPC

Abstract RU 2036528 C1

FIELD: building up reduced pressure within enclosed space. SUBSTANCE: method involves binding of gas phase of substance with chemical reagent in enclosed space which is filled with carbon dioxide, then saturated aqueous solution of chelate-former ammonia liquor is introduced in definite proportion of carbon dioxide and chelate-forming ammonia liquor. Metals copper, nickel, cobalt are used as chelate-forming agents. EFFECT: facilitated procedure. 1 dwg

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RU 2 036 528 C1

Authors

Kalekin O.Ju.

Shcherbina K.G.

Pupko I.T.

Aleksandrov E.N.

Dates

1995-05-27—Published

1990-12-25—Filed