Preliminary exploration of extracting phenolic compounds in medium and low temperature coal tar by glycerin solution
ZHAO Yuan
MAO Xuefeng
ZHANG Xiaojing
HUANG Peng
DU Shufeng
GU Xiaohui
Abstract：Glycerin solution is determined as extractant phenolic compounds in medium and low temperature coal tar by the screening of organic solvent.Take 170℃ to 240℃ of medium and low temperature coal tar as extraction material.Drawing a conclusion through single factor analysis and orthogonal test. Glycerin addition has the most important influence on extraction rate and it is followed by residence time,water addition and temperature.The optimum extraction condition is that,the mass ratio of glycerin to material is 3 ∶ 1,the water con-tent of glycerin solution is 5%,the temperature is 30 ℃,the mixing time is 30 minutes.The single-stage extraction rate is up to 92%.
Keywords：glycerinphenolic compoundsneutral oilextraction rate
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 55-57,89 )