Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Alkaline earth metal
Patent
1981-03-05
1982-06-15
Vertiz, O. R.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Alkaline earth metal
423155, 423164, 423165, 423430, 423431, 423636, 423638, 423639, C01F 520, C01F 524
Patent
active
043350836
ABSTRACT:
A method for leaching magnesium from a magnesium hydroxide-containing composition, especially a mineral, which comprises contacting said composition with an aqueous solution of an ammonium salt whose corresponding magnesium salt is soluble in said aqueous solution to thereby produce said soluble magnesium salt; separating said aqueous solution from said composition; and transforming the magnesium of said soluble magnesium salt into an insoluble magnesium compound. The method is particularly useful for leaching magnesium from brucite-containing chrysotile asbestos fibers, to yield both a magnesium compound and brucite-free, dispersed chrysotile fibers.
REFERENCES:
patent: 1340535 (1920-05-01), Garcin
patent: 1348933 (1920-08-01), Dolbear
patent: 1545132 (1925-07-01), Drambour
patent: 1963493 (1934-06-01), Higgins et al.
patent: 1969769 (1934-08-01), Sweet et al.
patent: 2039653 (1936-05-01), MacMullin
patent: 2070496 (1937-02-01), Sweet et al.
patent: 2390095 (1945-12-01), Gloss
patent: 2402370 (1946-06-01), Chalmers
patent: 2785950 (1957-03-01), Thomsen
patent: 2926997 (1960-03-01), Kalousek
patent: 3085858 (1963-04-01), Trubey et al.
patent: 3215494 (1965-11-01), Hemstock
patent: 3914184 (1975-10-01), Harada et al.
patent: 4201750 (1980-05-01), Pitts
patent: 4277449 (1981-07-01), Lalancette
Article entitled "Preference accordee aux enterprises locales" which appeared in Canadian newspaper, Courrier Frontenac, Jan. 29, 1980, p. 12.
Carey Canada Inc.
Grace James W.
Langel Wayne A.
Vanecek Charles W.
Vertiz O. R.
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