C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
402/399, 402/525
C02F 5/10 (2006.01) C02F 1/52 (2006.01) C02F 1/54 (2006.01) D21H 17/66 (2006.01)
Patent
CA 1251594
CANADIAN PATENT APPLICATION OF OLOF CARLSSON FOR A FLOCCULATING AGENT AND A PROCESS FOR ITS PRODUCTION Abstract of the Disclosure A flocculating agent for use in water purification technology and papermaking technology is described, as well as a process of producing the flocculating agent which is the reaction product of sulphate ion-containing polymeric aluminium hydroxy chloride and one or more cationic polymers preferably selected among polyacrylic amide, polyamide amine and polyethylene imine. The most preferred cationic polymer is polyacrylic amide. The flocculating agent is produced by mixing an aqueous suspension of sulphate ion-containing aluminium poly- hydroxy chloride having a solids content of 20-30 parts by weight with 0.3-60 parts by weight of cationic polymer, based upon 100 parts by weight of sulphate ion-containing aluminium polyhydroxy chloride, and by heating the mixture for 2-4 h at a temperature varying from about 80°C to the boiling point of the mixture.
467762
Carlsson Olof
Gowling Lafleur Henderson Llp
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