针对精苯装置预备蒸馏系自投料生产以来存在的喷苯现象，从操作和设计等方面进行原因分析并采取相应的改进措施。
As for the existing benzene-spurting for the stand-by distillating pump since test running, we analyse it from the aspects of operation and design and raise the corresponding innovative approach.
精苯废酸组成极为复杂，长期以来对精苯废酸的处理没有合适的解决方法。
The waste acid from benzol refining is a very complex mass and we has no better method to deal with it for a long time.
目的：观察茶皂素对壬苯醇醚(N 9)的杀精增效作用。
Objective: To study the effect of tea saponin in ameliorating nonoxynol (N-9) spermicidal action in vitro.
本文报道紫精化合物及亚硫酸盐在硫化镉光催化氧化二苯甲醇及其它芳香醇反应中的作用。
With CdS powder as photolysis catalyst, the oxidation of benzyl alcohol derivatives benzhydrol, benzyl alcohol, benzoin were investigated.
胺苯磺隆、草除灵和精喹禾灵均是防除油菜田杂草常用的除草剂。
Ehtametsulfuron, benazolin-ethyl and quizalofop-thyl are the common herbicides which can remove the weed in the rape fields.
主营：煤炭、冶金焦、煤焦油、煤沥青、焦化苯、燃料油、混合油、精萘、工业萘、硫酸铵、轻苯、粗苯、洗油、蒽油等国标产品。
Main business: coal, Metallurgical coke, Bituminous coal, coal tar pitch, Coking benzene, Fuel oil, Mixed oil, Refined Naphthalene, washed oil, Anthracene oil etc. GB products.
主营：煤炭、冶金焦、煤焦油、煤沥青、焦化苯、燃料油、混合油、精萘、工业萘、硫酸铵、轻苯、粗苯、洗油、蒽油等国标产品。
Main business: coal, Metallurgical coke, Bituminous coal, Coking benzene, Fuel oil, Mixed oil, Refined Naphthalene, washed oil, Anthracene oil etc. GB products.
主营：煤炭、冶金焦、煤焦油、煤沥青、焦化苯、燃料油、混合油、精萘、工业萘、硫酸铵、轻苯、粗苯、洗油、蒽油等国标产品。
Main business: coal, Metallurgical coke, Bituminous coal, Coking benzene, Fuel oil, Mixed oil, Refined Naphthalene, washed oil, Anthracene oil etc. GB products.
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