Process for preparing ether carboxylate builders

Details Process for preparing ether carboxylate builders Process for preparing ether carboxylate builders

1990-11-09

1991-11-26

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 59245

Patent

active

050684205

ABSTRACT:
There is disclosed a method for purifying the product of a calcium catalyzed reaction, in alkaline reaction medium of salts of maleic acid a hydroxy acid wherein impurities are removed by single stage solvent extraction and separation of the raffinate.

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"Static Mixers and Their Application" Manfred H. Parks et al., International Chemical Engineering, Apr. 1982, vol. 22, No. 2, pp. 197-205.
"In-Line Dispersion and Mass Transfer Using Static Mixing Equipment" F. Streiff, Sulzer Tech. Rev. 3/19/77, pp. 108-113.

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