METHOD FOR PRODUCTION OF AMINOEPICHLOROHYDRINE RESIN
FIELD: aminoepichlorohydrine resin for purifying of drinking and waste water from mechanical and organic impurities. ^ SUBSTANCE: epichlorohydrine is dosed into 25-40 % aqueous solution of dimethylamine heated up to 40-490C or 25-40 % aqueous solution of dimethylamine is dosed into epichlorohydrine...
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Zusammenfassung: | FIELD: aminoepichlorohydrine resin for purifying of drinking and waste water from mechanical and organic impurities. ^ SUBSTANCE: epichlorohydrine is dosed into 25-40 % aqueous solution of dimethylamine heated up to 40-490C or 25-40 % aqueous solution of dimethylamine is dosed into epichlorohydrine heated up to 40-490C in molar ratio of 1.0-1.1-:1.0. Then 0.1-2.0 mass % of ethylene diamine or polyethylene amine referred to total amount of dimethylamine and epichlorohydrine is introduced into reaction mixture and mixture is held at 71-850C for 1.5-2.0 h. ^ EFFECT: finished product of improved quality and reduces content of hazard 1,3- and 1,4-dichlorohydrines. ^ 1 tbl, 12 ex |
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