Process for refining kaolin

Details Process for refining kaolin Process for refining kaolin

1991-07-29

1992-09-01

Silverman, Stanley S.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209 10, 209 12, 209 39, 423113, 423118, 423131, 423132, 423150, 501146, 501147, 501148, 106486, 106487, 106488, B03D 102, B03D 108, B03D 110, C04B 3304

Patent

active

051435993

ABSTRACT:
A process is disclosed for producing high brightness kaolin from ore containing silica, other types of clays, minerals such as ilmenite micas, feldspars and various metal silicates as well as organic matter. The process consists of sizing, a double floatation step, magnetic separation, leaching and oxidative brightening steps. This is a novel combination of conventional unit operations and in particular the use of a double floatation step to remove quartz and various trace minerals that interfere with achieving high optical brightness for kaolin.

REFERENCES:
patent: 2990958 (1961-07-01), Greene
patent: 3353668 (1967-11-01), Duke
patent: 3471011 (1969-10-01), Iannicelli
patent: 3616900 (1971-11-01), Cecil
patent: 3670883 (1972-06-01), Weir
patent: 3837482 (1974-09-01), Sheridan
patent: 3861934 (1975-01-01), Mallary
patent: 4097372 (1978-06-01), Nott
patent: 4299807 (1981-11-01), Angel
patent: 4401638 (1983-08-01), Caballero
patent: 4419228 (1983-12-01), Cook
patent: 4468317 (1984-08-01), Turner
patent: 4492628 (1985-01-01), Young
patent: 4618374 (1986-10-01), Thompson
patent: 4629556 (1986-12-01), Yoon
patent: 4943324 (1990-07-01), Bundy

Affiliated with

Also associated with

Rating

Process for refining kaolin 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 for refining kaolin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for refining kaolin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-765626