Slurryability of single chain alkylphenol polyoxyethylene as coal water slurry dispersant
Abstract：The slurryability of alkylphenol polyoxyethylene（APEO）,a kind of coal water slurry（CWS） dispersant,to coal from five sources in the absence of stabilizer was studied by viscosity analysis.The effect of alkyl chain length,EO number and the dosage of the APEO addictive on the dispersibility and stability of CWS was researched.The results show that slurry-ability varies with the carbon numbers in the alkyl chain of APEO being 7,9,12,14,16 and 18.Among which,APEO with carbon numbers of 9 and 12 in the alkyl chain shows slurry-ability better than others.The apparent viscosity of the prepared CWS decreases sharply with the increase of dispersant dosage and reaches the minimum at the dispersant concentration of 0.4%~0.6%,then the apparent viscosity rises slightly with the increasing dispersant dosage.
Keywords：alkylphenol polyoxyethylenecoal-water slurrydispersantapparent viscosity
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)