Application of (partial) esters of polycarbonic acids as viscosity decreasers for aqueous coal slurries, and these aqueous coal suspensions

摘要

The use of (partial) esters of certain aliphatic, cycloaliphatic or aromatic polycarboxylic acids with certain alkyl-, (alkyl) -phenylalkyl- or alkyl-aryl-substituted phenol polyglycol ethers of the formula IMAGE in aqueous coal slurries desirably leads to coal suspensions of particularly low viscosity .