C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
134/37
C02F 1/52 (2006.01) C01F 7/00 (2006.01)
Patent
CA 1238257
CANADIAN PATENT APPLICATION OF OLOF CARLSSON FOR A PROCESS FOR PRODUCING A FLOCCULATING AGENT Abstract of the Disclosure: A process of producing a flocculating agent use- ful for water purification technology and as a substi- tute for aluminium sulphate in the rosin sizing of pa- per is described. In this process, about 100-150 parts by weight, preferably about 130 parts by weight of hydrochloric acid, calculated as 100% HCl, and 140-200, preferably 160-190 parts by weight of a sulphate-con- taining, aluminium hydroxide-containing sludge, cal- culated on the solids content of the sludge, are mixed. To obtain the sludge, alkaline pickles used in the pickling of aluminium profiles in connection with the anodisation of aluminium are neutralised with 1a sulphuric acid or aluminium sulphate. The sludge may also contain up to about 10% by weight of aluminium hydroxide. The mixture is heated and stirred at a temperature of from about 80°C to the boiling point of the mixture, preferably 95-100°C, for a combined time of about 3-15 hours, preferably about 4-6 hours. The reaction product is a substantially saturated aqueous solution of polyaluminium chloride having the presumed formula Ala(OH)b(SO4)cC13a-b-2c wherein a, b and c may have the values 13, 34 and 1, respectively. 1b
495210
Carlsson Olof
Gowling Lafleur Henderson Llp
LandOfFree
Process of producing a flocculating agent does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process of producing a flocculating agent, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of producing a flocculating agent will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1305174