煤焦油溶剂萃取分离研究

Study on solvent extraction and separation of coal tar

通过研究煤焦油的性质,并将煤焦油脱水脱渣,在温和条件下用石油醚、甲醇、丙酮、丙酮/二硫化碳溶剂进行萃取和多次分级萃取,得到萃取物,计算萃取率,比较得出不同溶剂与萃取次数对煤焦油萃取能力的区别。为煤焦油分离提纯技术提供参考依据,利于我国煤化工行业的发展。

The properties of coal tar oil was studied,after the dehydration and deslagging,the petroleum ether, methanol, acetone, acetone / CS2 solvent were used to extract the coal tar under mild conditions,got the extractant, the extraction rate was calculated, compared the difference of the extraction ability between the different solvents and the extraction number of times. To provide reference for coal tar separation and purification technology, which is beneficial to the development of coal chemical industry in China.