Continuous process for bleaching acid alpha-sulfo-fatty acid est

Details Continuous process for bleaching acid alpha-sulfo-fatty acid est Continuous process for bleaching acid alpha-sulfo-fatty acid est

1976-12-06

1978-03-21

Douglas, Winston A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260423, 260424, C07C14390

Patent

active

040803724

ABSTRACT:
A continuous process for the bleaching of acid .alpha.-sulfo-fatty acid esters of predominantly C.sub.16-24 fatty acids comprising continuously adding the hydrogen peroxide bleach in aqueous solution as well as from 2% to 50% by weight, based on the sulfonated esters, of a C.sub.6-18 alkylbenzene sulfonic acid, to said raw, acid .alpha.-sulfo-fatty acid esters at a temperature of 40.degree. to 65.degree. C, continuously passing said mixture through a confined zone of dimensions sufficient to give a proper bleach retention time and continuously recovering bleached .alpha.-sulfo-fatty acid esters.

REFERENCES:
patent: 3159657 (1964-12-01), Wulff et al.
patent: 3354187 (1967-11-01), Stein et al.
patent: 3452064 (1969-06-01), Stein et al.
patent: 3485856 (1969-12-01), Wulff et al.
patent: 3971815 (1976-07-01), Sagel et al.

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