Liquid purification or separation – Processes – Separating
Patent
1990-06-04
1992-03-24
Silverman, Stanley S.
Liquid purification or separation
Processes
Separating
210770, 2105101, 210902, 209 10, 209164, B01D 3700, B01D 3703, B01D 3920
Patent
active
050985833
ABSTRACT:
In the process for beneficiating a crude kaolin by the method which includes a wet classification step to provide a classified kaolin fraction having a PSD such that at least 50% by weight thereof are of less than 1/2.mu.m ESD and substantially 100% by weight are of less than 10 .mu.m ESD; and one or more steps wherein an aqueous slurry of the classified kaolin is at least partially dewatered by filtration; the improvement which comprises effecting at least one of said one or more filtration steps, by flowing said aqueous kaolin slurry through a ceramic filter plate which is characterized by a porous support layer and an overlying porous filtration layer, the ratio between the respective mean pore sizes of the filtration layer material and the base layer material being between about 2 and 50; the pore size in said filtration layer being in the range of from about 1 to 3 .mu.m, and the pore size in the base layer being in the range of from about 4 to 50 .mu.m; and said flow through said filter plate being from said filter layer toward said base layer, and being effected by establishing a fluid pressure differential across the said filter plate.
REFERENCES:
patent: 2990958 (1961-07-01), Greene
patent: 3807298 (1974-04-01), Luke
patent: 3974067 (1976-08-01), Nott
patent: 4303492 (1981-12-01), Eichler
patent: 4381998 (1983-05-01), Roberts
patent: 4452698 (1984-06-01), Roberts
patent: 4528099 (1985-07-01), Rieger
patent: 4604174 (1986-08-01), Bollinger
patent: 4863656 (1989-09-01), Hindstrom
patent: 4956088 (1990-09-01), Hindstrom
patent: 4981589 (1991-01-01), Hindstrom
Broxton L. Gene
Cobb Gary L.
Ginn Michael W.
ECC America Inc.
Lithgow Thomas M.
Silverman Stanley S.
LandOfFree
Method for producing high solids slurries of clay water products does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for producing high solids slurries of clay water products, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing high solids slurries of clay water products will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2007849