Process for removing iron from kaolin, quartz and other mineral

Details Process for removing iron from kaolin, quartz and other mineral Process for removing iron from kaolin, quartz and other mineral

1991-10-03

1993-03-02

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Clay containing

501146, 501150, 501145, 106416, 106486, 106487, 106488, C04B 3302, C04B 3304, C04B 3310, C04B 1404

Patent

active

051909006

ABSTRACT:
A chemical process is described for removing ferric iron present in submarginal quantities in concentrates of kaolin, quartz, titanium minerals, ceramic minerals for glass, paper and electronics use and other materials of industrial interest by which ferric iron is reduced to ferrous iron using acid solutions, possibly in the presence of low concentrations of sugars containing 5 or more carbon atoms.

REFERENCES:
patent: 3193344 (1962-03-01), Iannicelli et al.
patent: 3320027 (1967-05-01), Maynard et al.
patent: 3414422 (1968-12-01), Iannicelli et al.
patent: 4088732 (1978-05-01), Maynard et al.
patent: 4943324 (1990-07-01), Bundy et al.

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