Use of a zwitterionic surfactant together with an anionic...

Details Use of a zwitterionic surfactant together with an anionic... Use of a zwitterionic surfactant together with an anionic...

C - Chemistry, Metallurgy

09

K

C09K 3/00 (2006.01) B01F 17/00 (2006.01) C09K 5/10 (2006.01) C10M 173/02 (2006.01) F15D 1/00 (2006.01) F17D 1/17 (2006.01)

Patent

CA 2433540

The present invention relates to the use of a zwitterionic surfactant in combination with an ether sulphate or ether carboxylate surfactant in a water-based system as a drag-reducing agent. The combination has besides a high drag-reducing effect also a low sensitivity to hard water.

L'invention concerne l'utilisation, comme agent de réduction de traînée, d'un tensio-actif zwittérionique en combinaison avec un tensio-actif éther sulphate ou éther carboxylate dans un système à base d'eau. La combinaison produit un important effet de réduction de traînée et présente une faible sensibilité à l'eau dure.

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