Process for producing isopropyl alcohol

Details Process for producing isopropyl alcohol Process for producing isopropyl alcohol

1995-12-06

1998-02-03

Manoharan, Virginia

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

Organic compounds

Oxygen containing

203 28, 568895, C07C 2904, B01D 342

Patent

active

057146462

ABSTRACT:
A process for producing isopropyl alcohol by hydrating directly propylene and water in the presence of a strong acid solid catalyst which includes feeding continuously propylene, water which is the same as or more than propylene in terms of mole, and a saturated hydrocarbon (propane, butane and the like) to a reactor in which the above solid catalyst is filled or suspended, and carrying out a hydration reaction in the conditions of 50.degree. to 200.degree. C. and 60 to 250 atm while maintaining the concentration of isopropyl alcohol contained in the reaction liquid at 6 to 30 weight %, and then drawing a vapor phase out of the reactor, liquefying a part of thereof by reducing the pressure or cooling to separate vapor components, and refining crude isopropyl alcohol contained in the liquid phase to obtain refined isopropyl alcohol.

REFERENCES:
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patent: 4340769 (1982-07-01), Brandes et al.
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patent: 4482767 (1984-11-01), Imai
patent: 4484013 (1984-11-01), Schmidt
patent: 4507512 (1985-03-01), Okumura et al.
patent: 4861923 (1989-08-01), Olah
Esteban A. Brignole et al, "Supercritical Fluid Extraction of Alcohols from Water", Ind. Eng. Chem. Res., 1987, 26, pp. 254-261.

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