Ngôn ngữ:

A FLOCCULATING AGENT AND A PROCESS FOR ITS PRODUCTION

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Nhan đề:
A FLOCCULATING AGENT AND A PROCESS FOR ITS PRODUCTION
Tác giả: OLOF CARLSSON
Chủ đề: CHEMISTRY ; IMPREGNATING OR COATING OF PAPER ; METALLURGY ; PAPER NOT OTHERWISE PROVIDED FOR ; PAPER-MAKING ; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D ; PRODUCTION OF CELLULOSE ; PULP COMPOSITIONS ; TEXTILES ; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G ; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Mô tả: 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 polyhydroxy 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 of the mixture.
Năm xuất bản: 1985
Ngôn ngữ: English
Nguồn: esp@cenet

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