Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-11-19
1976-11-09
Schwartz, Gerald A.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
423387, C07C13104
Patent
active
039911152
ABSTRACT:
This invention relates to a process for the production of cyclohexanone oxime by reacting cyclohexanone with excess aqueous hydroxylamine in the presence of excess ammonia. More specifically, the invention relates to improving yields of the oxime while reducing undesirable by-product formation by use of two or more stages of reaction with correlated adjustment of reaction conditions in each stage. The invention also involves improved recovery of the unreacted hydroxylamine reactant for recycle in the process.
REFERENCES:
patent: 3070627 (1962-12-01), Bostian et al.
patent: 3948988 (1976-04-01), de Rooij
Allied Chemical Corporation
Kelly Fred L.
Schwartz Gerald A.
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