Process for the preparation of aqueous ammonium thiocyanate solu

Details Process for the preparation of aqueous ammonium thiocyanate solu Process for the preparation of aqueous ammonium thiocyanate solu

1990-04-20

1991-06-25

Langel, Wayne A.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Carbon containing

C01C 320

Patent

active

050265342

ABSTRACT:
Aqueous ammonium thiocyanate solutions are prepared continuously by reaction of ammonia with carbon disulfide in the presence of water using activated carbon as catalyst at pressures of from 2 to 7 bar. In this way, a very pure product can be obtained. The process can be carried out at very low cost, because both the addition of ammonia to carbon disulfide and the decomposition of the resulting ammonium dithiocarbamate can be carried out in a reactor in one step under identical conditions.

REFERENCES:
patent: 2249962 (1941-07-01), Lento, Jr. et al.
patent: 2286273 (1942-06-01), Hill
patent: 2850356 (1958-09-01), Sutherland et al.
patent: 3615177 (1971-10-01), Magerlein et al.

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