| 摘要 |
Hydrogen cyanide and acetic acid are obtained by decomposing oximino-acetone in an inert solvent at 100-200 DEG C. and 1-10 atm. pressure in the presence of 0.1-0.5 mol. of an organic acylating agent, per mol. of oximino-acetone, as catalyst. The catalyst may be an acid halide, cyanide, or simple or mixed anhydride, preferably an acetic acid derivative, or a ketene. Specific solvents are exemplified, acetic acid being preferred. The process may be carried out by dissolving the oximino-acetone in the solvent, adding the catalyst, and heating, or by adding the oximino-acetone, alone or in solution, to a heated mixture of solvent and catalyst. It may be operated continuously or in batch. HCN is removed continuously, and acetic acid is isolated by distillation from the reaction mixture, or by condensation if vaporized.ALSO:Hydrogen cyanide and acetic acid are obtained by decomposing oximino-acetone in an inert solvent at 100-200 DEG C. and 1-10 atm. pressure in the presence of 0.1-0.5 mol. of an organic acylating agent, per mol. of oximino-acetone, as catalyst. The catalyst may be an acid halide, cyanide, or simple or mixed anhydride, preferably an acetic acid derivative, or a ketene. Specific solvents are exemplified, acetic acid being preferred. The process may be carried out by dissolving the oximino-acetone in the solvent, adding the catalyst, and heating, or by adding the oximino-acetone, alone or in solution, to a heated mixture of solvent and catalyst. It may be operated continuously or in batch. HCN is removed continuously, and acetic acid is isolated by distillation from the reaction mixture, or by condensation if vaporized. |
