Process of removing iron impurities from ores

Details Process of removing iron impurities from ores Process of removing iron impurities from ores

1981-12-21

1983-09-20

Vertiz, O. R.

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

423131, 423132, 423150, 106DIG8, C01B 3312

Patent

active

044055889

ABSTRACT:
A process of removing iron impurities from ores, particularly useful for removing stains of iron impurities adhered to silica sand particles, comprises grinding the ore, washing and desliming the ground ore to remove the major part of the clay-type binder, attrition-scrubbing the deslimed particles to release further amounts of binder therefrom, washing and desliming to remove said binder, drying and heating the ore particles, treating the hot particles with a chemical agent suitable to conver the iron impurities into water soluble iron compounds, attrition-scrubbing the hot suspension of chemically treated particles to release the stains of iron impurities, and washing with cold water and desliming to recover the purified ore particles.

REFERENCES:
patent: 1840338 (1927-10-01), Trautmann
patent: 1957579 (1931-12-01), Carew
Dasher, John et al. "New Methods of Cleaning Glass Sands" The Bulletin of the American Ceramic Society, vol. 20, No. 6 Jun. 1941, pp. 187-195.Messner William E., "Scrubbing Solves Sand Floation Problem" Mining Engineering vol. 7, No. 2, Feb. 1955, p. 1955.

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