Method of digesting bauxite via the Bayer process with the addit

Details Method of digesting bauxite via the Bayer process with the addit Method of digesting bauxite via the Bayer process with the addit

1973-04-02

1977-11-22

Vertiz, O. R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423121, 423131, C01F 706, C01F 708

Patent

active

040596729

ABSTRACT:
The settling rate of caustic alkali-digested goethite-containing bauxite or laterite, or the like, is increased by carrying out the digestion in the presence of a reducing agent capable of reducing the trivalent iron component of the goethite to a lower valence so as to convert the goethite to hematite, magnetite, metallic iron, or combinations thereof, which enhance the settling rate of the digestion mass.

REFERENCES:
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patent: 1821138 (1931-09-01), Bradley et al.
patent: 2280998 (1942-04-01), Brown
patent: 2527257 (1950-10-01), Judd
patent: 3085853 (1963-04-01), Lesinski et al.
patent: 3127239 (1964-03-01), Cook
patent: 3198622 (1965-08-01), Herzog et al.
patent: 3445187 (1969-05-01), Sibert
patent: 3737514 (1973-06-01), King
West et al., Text Book of Biochemistry, fourth edition, 1966, The MacMillan Co., N.Y., N.Y., pp. 204-205, 226-229, 244-249, 1373.

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