Batch, semi-continuous or continuous hydrochlorination of glycerin with reduced volatile chlorinated hydrocarbon by-products and chloracetone levels
申请人:Kruper J. William
公开号:US20080015369A1
公开(公告)日:2008-01-17
The present invention relates to a process for converting a multihydroxylated-aliphatic hydrocarbon or ester thereof to a chlorohydrin, by contacting the multihydroxylated-aliphatic hydrocarbon or ester thereof starting material with a source of hydrogen chloride at superatmospheric, atmospheric and subatmospheric pressure conditions for a sufficient time and at a sufficient temperature, preferably wherein such contracting step is carried out without substantial removal of water, to produce the desired chlorohydrin product; wherein the desired product or products can be made in high yield without substantial formation of undesired overchlorinated byproducts; said process carried out without a step undertaken to specifically remove volatile chlorinated hydrocarbon by-products or chloroacetone, wherein the combined concentration of volatile chlorinated hydrocarbon by-products and chloroacetone is less than 2000 ppm throughout any stage of the said process.