Process for the preparation of calcium cyanamide

Details Process for the preparation of calcium cyanamide Process for the preparation of calcium cyanamide

1988-02-16

1989-07-18

Doll, John

Chemistry of inorganic compounds

Nitrogen or compound thereof

Carbon containing

C01C 316

Patent

active

048491977

ABSTRACT:
A process for the preparation of calcium cyanamide by nitrification of calcium carbide composition in a rotary furnace. Ground carbide composition, composed of calcium carbide to which, if appropriate, calcium cyanamide and/or calcium fluoride have been added, is compacted to a density of from about 1.3 to 2.0 g/cm.sup.3 before introduction to the rotary furnace. In this manner the severe caking on the rotary furnace wall which normally takes place in the course of nitrification is prevented and the nitrification yield is unexpectedly increased.

REFERENCES:
patent: 1006927 (1911-10-01), Frank
patent: 2161328 (1939-06-01), Winter et al.

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