Coal-aqueous mixtures

Details Coal-aqueous mixtures Coal-aqueous mixtures

C - Chemistry, Metallurgy

10

L

44/10

C10L 1/18 (2006.01) C10L 1/32 (2006.01)

Patent

CA 1157267

UNITED STATES PATENT APPLICATION OF : Seymour Mark FOR: Coal-Aqueous Mixtures ABSTRACT OF THE DISCLOSURE Coal-aqueous mixtures characterized by having high coal solids concentrations are provided. Selected polyalky- leneoxide nonionic surfactants are employed at low concentra- tions to disperse coal in an aqueous carrier medium to coal solids levels of 70% by weight, or higher. The selected polyalkyleneoxide nonionic surfactants are characterized by having a high molecular weight and a hydrophilic portion comprised of at least about 100 repeating units of ethylene oxide.

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