METHOD OF IRON OXIDE PIGMENT PREPARING Russian patent published in 1995 - IPC

Abstract RU 2047631 C1

FIELD: pigments, inorganic chemistry. SUBSTANCE: iron oxide pigments were prepared from the red slime, alumina production waste by its separation by size class in hydrocyclone. Particle fraction of size 0.02 mm (not above) were selected and calcined at 290-850 C. The end product shows clean red color, increased homogeneity of dispersed composition and improved covering power (7-11 g/m²). EFFECT: enhanced quality of pigment. 1 tbl

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RU 2 047 631 C1

Authors

Kalinichenko I.I.

Sokolov V.I.

Nikonenko E.A.

Kolesnikova M.P.

Purtov A.I.

Dates

1995-11-10—Published

1992-08-17—Filed