外加剂对煤焦油无机微粒去除率的影响研究

煤焦油作为煤炭加工的副产品，是重要的化工原料，应用价值广泛，但煤焦油的净化是煤焦油深加工的前提，因此通过研究添加外加剂的除杂方法对煤焦油灰分含量的影响；结果表明，经过上述方法处理灰分含量可降至0．00449％。反应的最佳条件为：采用V水：V硫酸=20的稀硫酸的添加量为6mL，反应时间为60min；采用V水：V氨水=3的稀氨水的添加量为40mL，反应时间为20h。

The effect of additives to removal rate of inorganic particle in coal tar

As the by - product of coal processing, coal tar is an important chemical raw material, has extensive application value. As a purification of coal tar is the premise of its deep processing, the method of removing impurity by additive was studied for the effect to ash content of coal - tar, the results shown that ash content could reduce to 0.00449% by above treating method. The reaction＇ s optimum condition was ： the additive amount of dilute sulfuric acid （as V water ：V sulfuric acid =20） was 6mL,reaction time 60 minutes;the additive amount of dilute aqueous ammonia （as V water ：V ammonia =3） was 40mL,reaction time was 20 hours.