Process for preparing a purified mineral coating

Details Process for preparing a purified mineral coating Process for preparing a purified mineral coating

1989-03-31

1990-06-19

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Clay containing

106488, 25218621, 25218622, C04B 2006

Patent

active

049353918

ABSTRACT:
A process is provided for purifying finely divided minerals contacting organic material sufficiently to make the minerals useful for coating a filling paper or for use as catalysts, catalyst supports or the like. The process comprises concomitantly contacting an aqueous slurry of the mineral with a peroxygen and a gas containing ozone at a pH from 5 to 12. Preferably, the peroxygen is incorporated into the slurry prior to contacting the slurry with a gas containing ozone. Optionally, the slurry may be pretreated with a chelating agent or subsequently bleached with a reducing agent.

REFERENCES:
patent: 3086534 (1963-04-01), De Gorter et al.
patent: 3290161 (1966-12-01), Sheldon et al.
patent: 3353668 (1967-11-01), Duke
patent: 3489586 (1970-01-01), Chapman et al.
patent: 3567474 (1971-03-01), Malden
patent: 3589922 (1971-06-01), Asdell et al.
patent: 3616900 (1971-11-01), Cecil et al.
patent: 3635744 (1972-01-01), Malden
patent: 3655038 (1972-04-01), Mercade
patent: 3861934 (1975-01-01), Mallary et al.
patent: 3862027 (1975-01-01), Mercade
patent: 3868318 (1975-02-01), Clark et al.
patent: 3923647 (1975-12-01), Petrovich
patent: 3979282 (1976-09-01), Cundy
patent: 4174279 (1979-11-01), Clark et al.
patent: 4186027 (1980-01-01), Bell et al.
patent: 4251351 (1981-02-01), Bowman
patent: 4501658 (1985-02-01), Young
patent: 4618374 (1986-10-01), Thompson et al.
patent: 4752412 (1988-06-01), Van Antwerp et al.
patent: 4824653 (1989-04-01), Severinghaus, Jr. et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2260377