所述提取物用链烷-环烷溶剂 以溶剂对提取物为（0.1～0.5）∶1的重量比预先进行稀释。
The extractive is diluted by the alkane-cycloparaffin solvent with weight ratio 1: (0.1-0.5).
脱除环烷酸的方法一般可有化学萃取、溶剂萃取、 吸收等。
Methods of the removal of naphthenic acid are chemical extraction, solvent extraction absorption, and so on.
一种无色、易燃的液体环烷烃，C5H10，从石油中提取并用作溶剂和发动机燃料。
A colorless, flammable, liquid cycloalkane, C5H 10, derived from petroleum and used as a solvent and motor fuel.
相转移催化环烷基化反应不适合采用无溶剂法来进行，对反应过程中的溶剂效应进行分析后选择甲苯作为溶剂和带水剂。
The reaction was not suitable conducted under solvent-free condition, water formed during the reaction was removed by azeotropic distillation with toluene throughout the reaction.
相转移催化环烷基化反应不适合采用无溶剂法来进行，对反应过程中的溶剂效应进行分析后选择甲苯作为溶剂和带水剂。
The reaction was not suitable conducted under solvent-free condition, water formed during the reaction was removed by azeotropic distillation with toluene throughout the reaction.
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