Process for preparing a pumpable surface-active product...

Details Process for preparing a pumpable surface-active product... Process for preparing a pumpable surface-active product...

C - Chemistry, Metallurgy

11

D

134/22

C11D 1/06 (2006.01) B01F 17/00 (2006.01) C09K 8/58 (2006.01)

Patent

CA 1155361

PROCESS FOR PREPARING A PUMPABLE SURFACE-ACTIVE PRODUCT BASED ON POLYETHER ACETIC ACID Abstract of the Disclosure A process for preparing a pumpable surface active product based on polyether acetic acid is described, wherein 1-10% water and such an amount of acid is added to a crude reaction mixture obtained by reacting in an alkaline medium an adduct of the formula RO-(C2H4O)xH with a compound Hal-CH2COOM, wherein R is a hydrophobic, aliphatic or aliphatic-aromatic residue, x is a number having an average value of 0.5-10, Hal is a halogen atom and M represents an alkali metal,that a 10-percent aqueous solution of the product shows a pH of 4-7. Preferably about 7% of water is added and also it is preferred to add so much acid that a pH of about 5-6 is obtained.

384446

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