Process for the production of hydrogen cyanide

Details Process for the production of hydrogen cyanide Process for the production of hydrogen cyanide

1980-11-18

1982-03-02

Vertiz, O. R.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Carbon containing

55 68, 55 70, 55 75, C01C 302

Patent

active

043178081

ABSTRACT:
For the reduction of the ammonia content in the product gas of the hydrocyanic acid-methane-ammonia (BMA) process and accordingly to increase the yield the reaction gas mixture of this process is brought into contact with zeolite and the ammonia thereafter desorbed from the zeolite preferably again employed in the reaction step. If the desorption is carried out with a flushing gas such as the hydrocarbon used in the reaction then this mixture can be directly supplied again to the BMA reactor. Through this procedure the amount of ammonia previously lost to the process can again be made useful in the process itself.

REFERENCES:
patent: 2995423 (1961-08-01), Breck et al.
patent: 3112177 (1963-11-01), Fujise et al.
patent: 3184518 (1965-05-01), Sanders et al.
patent: 3255233 (1966-06-01), Kunze et al.
patent: 3508382 (1970-04-01), Schoofs et al.
patent: 3517484 (1970-06-01), Lee et al.
patent: 3719026 (1963-03-01), Sand
patent: 3732326 (1973-05-01), Chen
patent: 4056370 (1977-11-01), Heinze et al.
Brooking et al., "The Specification of Molecular Sieve Adsorption Systems", The Chemical Engineer, Jan. 1972, pp. 13-18.
"Selective Adsorption with Zeolites", Chemical and Engineering News, vol. 32 (Dec. 29, 1954), p. 4786.
"Molecular Sieves, Processing Tool of the Future?", The Refining Engineer (Feb. 1957), p. C-53.

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