Use of aralkyl polyalkylene glycol ethers for the...

Details Use of aralkyl polyalkylene glycol ethers for the... Use of aralkyl polyalkylene glycol ethers for the...

C - Chemistry, Metallurgy

10

L

134/51

C10L 1/32 (2006.01) B01F 17/00 (2006.01)

Patent

CA 1226202

Use of aralkyl polyalkylene glycol ethers for the preparation of aqueous coal slurries A b s t r a c t Aqueous coal slurries are prepared using aralkyl polyalkylene glycol ethers of the formula Image in which R1 represents an optionally substituted aryl radi- cal, R2 and R3 are identical or different and denote hydrogen, alkyl or optionally substituted aryl, x represents a number in the range from 1 to 3, y represents a number in the range from 1 to 500, and R4 denotes hydrogen or one of the radicals Image in which M? represents a metal ion or ammonium, R5 denotes hydrogen, alkyl or optionally substi- tuted aryl and R6 denotes hydrogen or alkyl, it being possible for the radicals R6 in the individual chain members of the polyalkylene glycol chain to be identical or different.

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