Working up of the residual gases resulting from the production o

Details Working up of the residual gases resulting from the production o Working up of the residual gases resulting from the production o

1979-10-03

1984-02-28

Vertiz, O. R.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Carbon containing

C01B 2118

Patent

active

044341482

ABSTRACT:
The residual gases obtained in the production of cyanuric chloride having a pressure of 1-5 bar (absolute) preferably 1-4 bar, are worked up by leading them into the lower portion of a column, reacted in the column with at least the equivalent amount of hydrogen cyanide to form cyanogen chloride and led in countercurrent flow to the water charged to the upper portion of the column whereupon the aqueous solution of cyanogen chloride formed is withdrawn from the lower portion of the column and preferably is returned into the production portion of the plant for recovery of the cyanogen chloride while the purified waste gas of the column leaves in the upper portion of the column.

REFERENCES:
patent: 3197273 (1965-07-01), Trickey
patent: 3535091 (1970-10-01), Trickey
patent: 3567406 (1971-03-01), Evers
patent: 3568408 (1971-03-01), Riethmann et al.
patent: 3763157 (1973-10-01), Syrvanaravana et al.
patent: 3825658 (1974-07-01), Eckert, Jr. et al.

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