Method of preparing goethite

Details Method of preparing goethite Method of preparing goethite

1993-12-14

1994-08-16

Klemanski, Helene

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

252 6259, 423633, C09C 122

Patent

active

053383559

ABSTRACT:
The present invention relates to a method of preparing Si-containing goethite (.alpha.-FeOOH) by the precipitation of Fe(II) salts with an excess of base, and subsequent oxidation in the presence of a silicate solution.

REFERENCES:
patent: 3931025 (1976-01-01), Woditsch et al.
patent: 4136158 (1979-01-01), Okuda et al.
patent: 4222790 (1980-09-01), Dickerson
patent: 4631090 (1986-12-01), Naumann et al.
patent: 5244649 (1993-09-01), Ostertag et al.

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