摘要
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。
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.
出处
《贵州化工》
2013年第2期6-8,15,共4页
Guizhou Chemical Industry
基金
贵州省工业攻关重点项目(编号:黔科GY字(2010)3046号
黔科GZ字(2011)3012)
关键词
煤焦油
净化
外加剂
灰分含量
添加量
反应时间
coal tar
purification
additive
ash content
additive amount
reaction time
