Hydraulic drag reducing agents for low temperature

Details Hydraulic drag reducing agents for low temperature Hydraulic drag reducing agents for low temperature

C - Chemistry, Metallurgy

10

M

31/66

C10M 173/02 (2006.01) C09K 3/00 (2006.01) C09K 5/00 (2006.01) C10M 141/06 (2006.01)

Patent

CA 2009210

Heat exchange fluids have improved flow characteristics at low temperatures by incorporation of specific surfactant drag reducing compositions. The drag reducing composition comprises (1) a quaternary ammonium surfactant and (2) a preferably stoichiometric or greater amount of an organic counterion. The counterion is preferably a benzoate, naphthalate, carboxylate or sulfonate and preferably contains a negatively charged head group substituent and an electron withdrawing a delocalizing group, preferably a hydroxyl group, in both adjacent positions.

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