Granular magnetite particles and process for producing the same

Details Granular magnetite particles and process for producing the same Granular magnetite particles and process for producing the same

1994-09-27

1996-11-26

Nakarani, D. S.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

252 6255, 252 6256, 252 6258, 428403, 428405, 428694BA, 428900, B32B 516, G11B 566, C01G 4908

Patent

active

055783759

ABSTRACT:
Granular magnetite particles useful as coloring pigments assuming a black color and containing elemental aluminum, 3 to 6 wt %, in the magnetite crystal lattice. The magnetite has a spinel structure with a lattice constant of 8.340 to 8.375 .ANG..

REFERENCES:
patent: 4390361 (1983-06-01), Sueyoshi et al.
patent: 5232805 (1993-08-01), Misawa et al.
patent: 5336421 (1994-08-01), Kurita et al.
patent: 5389482 (1995-02-01), Okano et al.
Patent Abstracts of Japan vol. 7, No. 192 (P-218) (1337) Aug. 1983.
Patent Abstracts of Japan vol. 10, No. 185 (C-357) 2241 Jun. 1986.

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