Improved slurry drag reducer

Details Improved slurry drag reducer Improved slurry drag reducer

C - Chemistry, Metallurgy

08

L

C08L 23/02 (2006.01) C08J 3/05 (2006.01) C08K 5/05 (2006.01) C08L 23/18 (2006.01) C10M 143/00 (2006.01) F17D 1/17 (2006.01)

Patent

CA 2593008

Flow of a stream comprised of hydrocarbons is improved by introducing into the stream a stable, non- agglomerating suspension comprising: (a) water, (b) highly dispersed in the water, and substantially insoluble therein, and extremely finely- divided, non-crystalline, ultra-high molecular weight, hydrocarbon-soluble, undegraded polyalkene having 2 to about 30 carbon atoms per alkene precursor and an inherent viscosity of at least 20 dL/g, and (c) a small but effective amount of a surfactant having a HLB of at least about 9. The finely divided polyalkene is prepared by polymerization and then cryogrinding below the glass transition temperature of the polyalkene.

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