C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 21/082 (2006.01) C01C 3/00 (2006.01) C07C 209/62 (2006.01)
Patent
CA 2100717
- 9 - Abstract A process for the preparation of isocyanic acid, characterized in that N,N-disubstituted ureas are decomposed at elevated temperature to a secondary amine of lower volatility and to isocyanic acid, which is drawn off at the top.
Falk Heinz
Hackl Kurt Alfred
Mullner Martin
Schulz Erich
Stern Gerhard
Dsm Fine Chemicals Austria Gmbh
Riches Mckenzie & Herbert Llp
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