METHOD OF DEHYDRATION AND PURIFICATION OF POLYACRYLAMIDE GEL Russian patent published in 1999 - IPC

Abstract RU 2132336 C1

FIELD: chemical industry. SUBSTANCE: method comprises freezing, grinding and treatment with solvent. Solvent remnants from dehydrated and purified particles are removed by air or inert gas stream at temperature not higher than 48 C. Method uses wider range of solvents for dehydration and purification of gel from impurities. EFFECT: more efficient dehydration and purification method. 11 ex

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RU 2 132 336 C1

Authors

Alekseev A.S.

Krivoputskij V.S.

Krivoputskaja L.M.

Dates

1999-06-27—Published

1997-04-22—Filed