Recovery of magnesium from magnesium silicates

Details Recovery of magnesium from magnesium silicates Recovery of magnesium from magnesium silicates

1977-09-30

1978-11-07

Vertiz, O. R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkaline earth metal

C01F 540

Patent

active

041246837

ABSTRACT:
Substantially pure magnesium hydroxide or carbonate is obtained from naturally-occurring minerals containing at least 10% magnesium silicate by adjusting the pH a magnesium bisulfite solution obtained therefrom to between 8.0 and 8.9 under an oxidizing atmosphere thereby to produce a magnesium sulfate solution from which the magnesium hydroxide or carbonate can be readily obtained.

REFERENCES:
patent: 1865224 (1932-06-01), Winston et al.
patent: 2112903 (1938-04-01), Booth
patent: 2384010 (1945-09-01), Brandenburg
patent: 4058587 (1977-11-01), Nelson
Lewis, "Some Practical Suggestions on Waste Acid Treatment," Rock Products (Jun., 1949), pp. 117-119, 149, 150.

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