Saugfaehige Carboxymethylcellulosefasern und ihre Verwendung in absorbierenden Fasermaterialien

摘要

1,236,313. Chloroform dehydration. BUCKEYE CELLULOSE CORP. 12 March, 1969 [14 March, 1968; 13 Sept., 1968], No. 13062/69. Heading C2C. [Also in Divisions A5, C3 and C5] Chloroform may be purified by removing undissolved water therefrom by passing the crude material through a filter comprising waterinsoluble wet-cross-linked fibres of a watersoluble carboxymethyl cellulose salt. Examples relate to the removal of water from chloroform and chloroform/hexane mixtures.