Process for converting ammonium imidodisulfate, ammonium sulfama

Details Process for converting ammonium imidodisulfate, ammonium sulfama Process for converting ammonium imidodisulfate, ammonium sulfama

1979-01-10

1980-09-02

Vertiz, O. R.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Ammonia or ammonium hydroxide

423235, 423539, C01C 102

Patent

active

042206340

ABSTRACT:
Ammonium imidodisulfate and ammonium sulfamate may be converted to sulfur dioxide and ammonia by heating them with a reducing agent or a catalyst in a bath of molten ammonium sulfate and ammonium bisulfate. The reducing agent is sulfur or a sulfur compound and the catalyst is selected from Mo, W, Cu, Fe, Co, Cr, Mn and Ni.

REFERENCES:
patent: 3661516 (1972-05-01), Hofmeister
patent: 3810968 (1974-05-01), Renault et al.
patent: 3833715 (1974-09-01), Deschamps et al.
patent: 4029745 (1977-06-01), Dezael et al.
patent: 4055623 (1977-10-01), Saitoh
patent: 4081442 (1978-03-01), Wassen et al.

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