Process for the manufacture of cyanogen
AssigneeHoechst Aktiengesellschaft
InventorsWilhelm Riemenschneider, Peter Wegener
Life of this patent
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Abstract
Cyanogen is produced by catalytic oxidation of hydrogen cyanide with oxygen in the presence of a catalyst solution. The catalyst solution consists of aliphatic ethers or of nitriles and copper(II)nitrate and may further contain up to 20 % by weight of water.
Claims12
A process for the manufacture of cyanogen which comprises catalytically oxidizing hydrogen cyanide with oxygen in an aliphatic ether or a nitrile selected from the group consisting of acetonitrile, propionitrile, their homologs and benzonitrile containing from 0 to 20 weight % of water and at least 0.01 mole/l of Cu(NO.sub.3).sub.2.
The process defined in claim 9, wherein 0 to 5 weight % of water is present.
The process defined in claim 10, wherein ethylene glycol dimethyl ether, diethylene glycol dimethyl ether or a combination thereof is present.
Dependencies are inferred from the claim text.