Process for purifying n-butyl chloride

Details Process for purifying n-butyl chloride Process for purifying n-butyl chloride

1998-05-28

2000-07-25

Manoharan, Virginia

Distillation: processes, separatory

With disparate physical separation

Utilizing liquid-liquid extracting of distillation product

203 91, 570262, 570263, B01D 1104, C07C 17383

Patent

active

060932864

ABSTRACT:
A process for purifying at least 90% pure n-butyl chloride which is present in a mixture with other C.sub.1 to C.sub.4 alkyl chlorides, C.sub.1 to C.sub.4 alcohols, esters, ketones, nitrites, and organic sulfur compounds. In this process the mixture is first distilled, with high-boilers being separated off, and then washed in a plurality of stages with water and with dilute alkali metal hydroxide solution, and, optionally, an aqueous solution of H.sub.2 O.sub.2. In this manner, even a typical impurities may be separated off and a >99% pure product may be obtained.

REFERENCES:
patent: 3654093 (1972-04-01), Schexnayder et al.
patent: 3848005 (1974-11-01), Sullivan
patent: 5132476 (1992-07-01), Osterburg et al.
patent: 5371313 (1994-12-01), Ostrowicki

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