Method for coagulating a colloidal suspension

Details Method for coagulating a colloidal suspension Method for coagulating a colloidal suspension

1976-06-14

1978-02-07

Guynn, Herbert B.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 54, 106308N, 252 495, 252319, 252DIG15, 424359, 252 855D, 260112R, B01D 2101, C07G 700, C12D 1306

Patent

active

040726061

ABSTRACT:
Water-soluble polymers that thicken reversibly in aqueous solution on alteration of the degree of alkalinity are manufactured by treating an aqueous suspension of protein with the enzymes elaborated extracellularly by a species of the genus Pseudomonas. The water soluble polymers resulting therefrom are biodegradable. They are useful for stabilizing emulsions, as flow-control agents in water base paint, and as anti-redeposition agents in laundry detergents. They are particularly useful as coagulants for colloidal suspensions of solids such as the phosphate slimes byproduct of the large scale hydraulic mining of phosphate deposits. They are also particularly useful as flow control agents in the water flooding process for the recovery of petroleum.

REFERENCES:
patent: 3346463 (1967-10-01), Goren
patent: 3406114 (1968-10-01), Goren
patent: 3492225 (1970-01-01), Ryznar
patent: 3680698 (1972-08-01), Liu et al.
patent: 3684706 (1972-08-01), Bomstein
patent: 3989592 (1976-11-01), Leavitt

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