Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1990-06-29
1993-01-12
Hruskoci, Peter
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
209 5, 210734, 210735, 210738, 210917, C02F 156
Patent
active
051787741
ABSTRACT:
An aqueous suspension of coagulatable material is coagulated by adding polymeric coagulant to the suspension and then separating the resultant coagulated material from the liquor. The coagulatable material may be present in the aqueous suspension as a suspension of suspended solids or as colloidally dispersed solids. The suspension may be coal tailings or other aqueous (generally mineral) suspension. The polymeric material must be a low molecular weight, highly ionic, polymeric material. It is added to the aqueous suspension while in the form of polymeric particles having a size mainly above 30 .mu.m and that will dissolve into the suspension and coagulate the coagulatable material. A counterionic, high molecular weight, flocculant is generally added subsequently in order to flocculate the coagulated material.
REFERENCES:
patent: Re31900 (1985-05-01), Halverson
patent: 3147218 (1964-09-01), Booth et al.
patent: 3836200 (1974-09-01), Booth
patent: 3860526 (1975-01-01), Corbett
patent: 3977971 (1976-08-01), Quinn et al.
patent: 4089831 (1978-05-01), Chambers
patent: 4569768 (1986-02-01), McKinley
patent: 4698161 (1987-10-01), Hanson
patent: 4720346 (1988-01-01), Flesher et al.
patent: 4816166 (1989-03-01), Cawiezel
patent: 4820424 (1989-04-01), Field et al.
patent: 4835206 (1989-05-01), Farrar et al.
Hood et al., "Dewatering of Red Mud", Process Technol. Proc., 4 (Flocculation Biotechnol. Sep. Syst.), pp. 773-791.
Fairchild, Jr. Hubert
Payne Geoffrey L.
Allied Colloids Limited
Hruskoci Peter
LandOfFree
Purification of aqueous liquor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Purification of aqueous liquor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Purification of aqueous liquor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1217644