Electrostatic enrichment of trona and nahcolite ores

Details Electrostatic enrichment of trona and nahcolite ores Electrostatic enrichment of trona and nahcolite ores

1980-12-12

1983-03-01

Straub, Gary P.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkali metal

23302T, 209127R, 209127A, 209128, 209214, C22B 2610, B03C 700, B03C 100, C01D 3124

Patent

active

043754546

ABSTRACT:
Calcined trona and/or nahcolite bearing ore particles are separated into a plurality of fractions of relatively uniform particle size. Those calcined particles smaller than about 6.7 mm in size and larger than about 0.2 mm in size are passed through an electrostatic separator to obtain an ore concentrate containing a greater percentage of soda ash and a lesser percentage of insoluble impurities than were present in the ore; a middling fraction and an ore tailing fraction containing a lesser percentage of soda ash and a greater percentage of insoluble impurities than were present in the ore. The middling fraction may be recycled to increase the yield of ore concentrate. Calcined particles smaller than about 0.2 mm may be combined with the ore concentrate. The combined ore concentrate fraction may be marked as technical grade soda ash or used as a high grade feed to a monohydrate refining process.

REFERENCES:
patent: 1872591 (1932-08-01), Hoeman
patent: 2765074 (1956-10-01), Diamond
patent: 2832469 (1958-04-01), Lawver
patent: 2839190 (1958-06-01), Lawver
patent: 3244476 (1966-04-01), Smith
patent: 3458039 (1969-07-01), Singewald
patent: 3477566 (1969-11-01), Autenrieth et al
patent: 3479133 (1969-11-01), Warzel
patent: 3480139 (1969-11-01), Fricke et al.
patent: 3493109 (1970-02-01), Carta et al.
patent: 3760941 (1973-09-01), Singewald et al.
patent: 3819805 (1974-06-01), Graves et al.
patent: 3821353 (1974-06-01), Weichman
patent: 3941685 (1976-03-01), Singewald et al.
patent: 3962403 (1976-06-01), Wyslouzil
patent: 4341744 (1982-07-01), Brison et al.
Perry, R. H. et al. Chemical Engineers Handbook, 5th Edition McGraw-Hill Book Co., NY. NY., 1973 pp. 21-62-21-65.
Faas, F. Electrostatic Separation of Granular Materials Bureau of Mines Bulletin #603, 1962, 155 pages.
Faas, Foster, Effect of Temperature on the Electrostatic Separation of Mineral Bureau of Mines Report of Investigation, Apr. 1966, 5213.
The Chemical Age, Metalurgical Section, Applied Electrostatic Separation Efficient Ore Dressing Technique, pp. 235-239, Sep. 1943.
H. B. Johnson, Selective Electrostatic Separation, Mining Technology Jan. 1938. A IMME TP 877.

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