Process for the production of acetic acid from methanol and carb

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof

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562517, 562607, C07C 6736, C07C 5110

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active

053347552

ABSTRACT:
A liquid feed containing methanol, carbon monoxide, an alkyl iodide and a solvent is contacted with a supported rhodium catalyst to produce acetic acid at a temperature of 140.degree.-250.degree. C. and a pressure of 15-60 kg/cm.sup.2 G with a partial pressure of carbon monoxide of 7-30 kg/cm.sup.2 while maintaining (a) the water concentration of the product solution in the range of 0.5-10% by weight and (b) the carbonylation degree C.sub.r, defined in the specification, of the solution within the reactor at 0.15 or more. The solvent may be a carboxylic acid or a carboxylic acid ester.

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patent: 3855307 (1974-12-01), Rony et al.
patent: 4212989 (1980-07-01), Isshiki et al.
patent: 5001259 (1991-03-01), Smith et al.
patent: 5155261 (1992-10-01), Marston et al.
patent: 5189203 (1993-02-01), Hansen et al.
Applied Catalysts, 67(1991) 269-278, Hjortkjaer et al.

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