Use of synthetic, iron raw materials for preparing iron oxide pi

Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing

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106456, 423633, 423634, C01G 4902, C09C 122

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active

060868465

ABSTRACT:
The invention relates to the use of synthetic (synthetically produced) iron raw materials to prepare iron oxide pigments in the Penniman process and other iron-dissolution processes.

REFERENCES:
patent: 1327061 (1920-01-01), Penniman, Jr. et al.
patent: 1368748 (1921-02-01), Penniman, Jr. et al.
patent: 1542968 (1925-06-01), Snellenberger
patent: 2388659 (1945-11-01), Ryan et al.
patent: 3755554 (1973-08-01), Lailach et al.
patent: 4234348 (1980-11-01), Brunn et al.
patent: 4432803 (1984-02-01), Hitzrot, Jr.
patent: 4966641 (1990-10-01), Westerhaus et al.
patent: 5837216 (1998-11-01), Burow et al.
Ullmann's Encyclopedia of Industrial Chemistry, Pigments, Inorganic, vol. A20, pp. 298-299, 1992.
Ullmann's Encyclopedia of Industrial Chemistry, Pigments, Inorganic, vol. A20, pp. 243, 301-303, 362-363, 1992.

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