Dry reaction process of asbestos tailings and ammonium sulfate

Details Dry reaction process of asbestos tailings and ammonium sulfate Dry reaction process of asbestos tailings and ammonium sulfate

1979-05-01

1981-07-07

Vertiz, O. R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkaline earth metal

423554, C01F 540

Patent

active

042774497

ABSTRACT:
There is disclosed a dry process for preparing magnesium sulfate by heating one surface of a reaction mixture of asbestos tailings to a temperature of from 350.degree. to 400.degree. C. whereby there is provided a gradient temperature between the heated zone, an intermediate zone and the outside zone where the ammonium bisulfate formed can condense in one of the last two zones which are at a temperature lower than 250.degree. C. and react with ammonia to provide a new supply of ammonium sulfate for further reaction with the asbestos tailings and recovering the magnesium sulfate thus obtained.

REFERENCES:
patent: 3338667 (1967-08-01), Pundsack
Babor, Basic College Chemistry, Second Edition, Thomas Y. Crowell Company, New York (1953) pp. 225-257.

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