Process for the production of acetic acid from methanol and carb

Details Process for the production of acetic acid from methanol and carb Process for the production of acetic acid from methanol and carb

1993-04-21

1994-08-02

Prescott, Arthur C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

562517, 562607, C07C 6736, C07C 5110

Patent

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.

REFERENCES:
patent: 3689533 (1972-09-01), Schultz
patent: 3717670 (1973-02-01), Schultz
patent: 3769329 (1973-03-01), Paulik et al.
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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