Effect of Hydrophilic Chain Length on the Coal-Water Slurry Properties of Alkylphenol Polyoxyethylene Ether
SU Yi WANG Shi-bing ZHU Shu-quan
Department of Chemistry and Engineering of Huanghuai University Department of Chemistry and Engineering of Huanghuai University School of Chemistry and Environment Engineering，China University of Mining Technology
Abstract：The slurrying ability of alkylphenol polyoxyethylene (APEO), a coal water slurry (CWS) dispersant, was studied by viscosity analysis of CWS prepared with coal from five sources in the absence of stabilizer. The effect of EO number of APEO addictive on the dispersibility of CWS was examined. The results show that the slurrying ability of APEO changes with the polyoxyethylene adduct number (EO number) obviously. The minimum apparent viscosity of prepared CWS is observed when the hydrophilic-lipophilic balance value of APEO is 18.5±0.4, i.e., when the EO number of APEO lies in the range from 60 to 100. Slurrying ability decreases beyond this EO number range and the optimal EO number increases with the length of alkyl chain in different APEO. APEO with a short alkyl chain shows a small optimum EO number, and vice versa. The optimal EO number has been determined to be 60, 60, 70, 80, 90 and 100 for APEO with different alkyl carbon number values of 7, 9, 12, 14, 16 and 18, respectively.
苏毅 王世兵 朱书全. 烷基酚聚氧乙烯醚亲水链长度对水煤浆性能的影响[J]. , 2011, 11(3): 524-528.
SU Yi WANG Shi-bing ZHU Shu-quan. Effect of Hydrophilic Chain Length on the Coal-Water Slurry Properties of Alkylphenol Polyoxyethylene Ether. , 2011, 11(3): 524-528.