公开(公告)号：US3575797A

公开(公告)日：1971-04-20

申请号：US3575797D

申请日：1967-04-25

Applicant: BAYER AG

Inventor： LEHMANN WOLFGANG ,  ZIEMANN HEINZ ,  TRETTER HERMANN

IPC: C02F1/24 ,  D21F1/70 ,  D21F1/66

CPC classification number: C08G59/32 ,  B03D1/01 ,  C02F1/24 ,  C08G65/2609 ,  D21F1/70

Abstract: A FLOTATION AGENT AND METHOD FOR RECOVERING FIBERS OR FILLERS FROM WASTE WATER BY ADMIXING A FLOTATION AGENT CONSISTING ESSENTIALLY OF THE AMINO GROUPS AND ETHER GROUPS-CONTAINING PRODUCT OF A MOLECULAR WEIGHT OF AT LEAST 2000 OBTAINED BY REACTING A POLYFUNCTIONAL DERIVATIVE OF A POLYOL WITH AN AMINE, WHICH IS AT LEAST BIFUNCTIONAL WITH REGARD TO THE POLYFUNCTIONAL DERIVATIVE OF THE POLYOL, AT LEAST ONE OF THE REACTION COMPONENTS CONTAINING AT LEAST ONE ETHER GROUP, OR A QUATERNIZATION PRODUCT THEREOF, AGITATING AND SEPARATING THE RESULTING FROTH FROM THE WASTE WATER.