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公开(公告)号:ZA821980B
公开(公告)日:1983-02-23
申请号:ZA821980
申请日:1982-03-24
Applicant: BASF AG
Abstract: A process for removing anionic compounds from water which is recycled in manufacturing processes, and from waste water, by adding (1) water-soluble products obtained by reacting an alkylating agent, having an aromatic substituent, with a cationic polyelectrolyte and (2) mineral adsorbents and/or a magnesium salt, aluminum salt or iron salt, with formation and flocculation of water-insoluble reaction products.
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公开(公告)号:SE7508400L
公开(公告)日:1976-01-30
申请号:SE7508400
申请日:1975-07-23
Applicant: BASF AG
Inventor: SCHARG E , FIKENTSCHER R , AUHORN W , STREIT W
IPC: C08G73/00 , C02F1/54 , C08G20060101 , C08G65/26 , C08G69/40 , C08G73/02 , C08G73/04 , C08G81/00 , C08G83/00 , C08L79/02 , D21C9/18 , D21H17/54 , D21H17/56 , D21H3/48
Abstract: Production of water-sol?ble crosslinked auxiliari?s for the papermaking industry by reacting(a) one equivalent of NH groups of a polyalkylene polyamine having from 15 to 500 alkyleneimine units with(b) from 0.001 to 0.08 mole of a reaction product obtained from a polyalkylene oxide having from 8 to 100 alkylene oxide units with epichlorohydrin, in aqueous solution at a temperature of from 20.degree. to 100.degree.C. The viscosity of an aqueous solution containing 20% by weight of the crosslinked auxiliaries is from 300 to 1,500 centipoises (20.degree.C).
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公开(公告)号:DK132582A
公开(公告)日:1982-09-26
申请号:DK132582
申请日:1982-03-24
Applicant: BASF AG
Abstract: A process for removing anionic compounds from water which is recycled in manufacturing processes, and from waste water, by adding (1) water-soluble products obtained by reacting an alkylating agent, having an aromatic substituent, with a cationic polyelectrolyte and (2) mineral adsorbents and/or a magnesium salt, aluminum salt or iron salt, with formation and flocculation of water-insoluble reaction products.
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公开(公告)号:NO752597A
公开(公告)日:1976-01-30
申请号:NO752597
申请日:1975-07-22
Applicant: BASF AG
Inventor: SCHARF E , FIKENTSCHER R , STREIT W , AUHORN W
IPC: C08G73/00 , C02F1/54 , C08G20060101 , C08G65/26 , C08G69/40 , C08G73/02 , C08G73/04 , C08G81/00 , C08G83/00 , C08L79/02 , D21C9/18 , D21H17/54 , D21H17/56 , C08G
CPC classification number: D21H17/33 , C02F1/54 , C08G65/2609 , C08G73/022 , D21H17/54
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