Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1987-10-30
1988-11-08
Thexton, Matthew A.
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
252 60, 252358, 210907, C09K 300, C02F 156
Patent
active
047832703
ABSTRACT:
Disclosed herein are a coagulant for minute mineral particles in suspension, comprising a copolymer of 0.5 to 10 mol % of 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, 40 to 99.5 mol % of N-hydroxymethylacrylamide and 0 to 59.5 mol % of acrylamide and showing a reduced viscosity of 10 to 30 dl/g in an aqueous 1N solution of sodium chloride at a temperature of 25.degree. C. and a concentration of the copolymer of 0.1 g/dl therein, and a method for coagulating the minute mineral particles in a suspension, comprising adding the coagulant a neutral waste water.
REFERENCES:
patent: 3607622 (1971-09-01), Espy
patent: 3859212 (1975-01-01), Smalley et al.
patent: 4471097 (1984-09-01), Uhl et al.
patent: 4526947 (1985-07-01), Castner
patent: 4536294 (1985-08-01), Guillet et al.
patent: 4547463 (1985-10-01), Sakata et al.
patent: 4555558 (1985-11-01), Giddings et al.
patent: 4587108 (1986-05-01), MacDonald
patent: 4590249 (1986-05-01), Cabestary et al.
patent: 4599390 (1986-07-01), Fan et al.
patent: 4631317 (1986-12-01), Konig et al.
Mori Kenji
Murao Yoshikazu
Sawayama Shigeru
Kilby Catherine S.
Mitsubishi Chemical Industries Limited
Thexton Matthew A.
White John P.
LandOfFree
Coagulant for minute mineral particles in suspension and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coagulant for minute mineral particles in suspension and method , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coagulant for minute mineral particles in suspension and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-462807