Process for selecting raw material and making a bleaching clay

Details Process for selecting raw material and making a bleaching clay Process for selecting raw material and making a bleaching clay

1995-11-30

1998-07-21

Marcheschi, Michael

Compositions: ceramic

Ceramic compositions

Clay containing

106486, 106488, 502 81, 502 83, 4231181, 4233281, B01J 2116, B01J 2012, C04B 3304

Patent

active

057835110

ABSTRACT:
A process for making a bleaching clay composition useful for purification of oil is disclosed. The process of involves controlled acidification of a palygorskite--smectite clay mineral with sulfuric acid.

REFERENCES:
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patent: 2018987 (1935-10-01), Wirzmuller
patent: 2477386 (1949-07-01), McCarter
patent: 2671058 (1954-03-01), Mickelson
patent: 3617215 (1971-11-01), Sugahai et al.
patent: 4717699 (1988-01-01), Mickelson
patent: 5008226 (1991-04-01), Taylor et al.
patent: 5330946 (1994-07-01), Hynes et al.
patent: 5468701 (1995-11-01), Nebergall et al.
Banin, A., et al. "Particle Size and Surface Properties of Acidic Montmorillonite," in Proceedings of the International Clay Conference, vol. 1, pp. 669-682, Tokyo, Japan (1969) (no month).
Guggenheim et al., Clays and Clay Minerals 43(2):255-256 (1995) (no month).

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