此油可以作为原油回炼，抽提溶剂可以回收，重复使用。
The extracted oil can be used as crude oil and the solvent can be recycled.
抽提溶剂油催化加氢脱芳烃的研究，考查了不同操作条件下6~?。
The effects of different operating conditions on the catalytic hydrodearomatization of 6 extraction solvent oil are investigated.
分别采用硅胶柱色谱法和溶剂抽提，分离优质塑料抛光膏中的油脂和磨料部分。
Silica gel column chromatography and solvent extraction were used to separate grease and abradant in a kind of excellent polishing paste for plastics, respectively.
摘要：丁二烯抽提装置中由于存在大量的溶剂和丁二烯、炔烃等C4烃类，这些物质都是有毒、易燃、易爆的。
Abstract: butadiene extraction unit in the presence of a large amount of solvent and butadiene, acetylene and other C4 hydrocarbons, these substances are toxic, flammable and explosive.
主要介绍以纯糠醛为溶剂的芳烃抽提小试实验。
The aromatic extraction laboratory scale test taking the pure furfural as solvent was mainly introduced.
二甲基甲酰胺（DMF）是一种重要的有机溶剂，被广泛应用于合成革生产、聚丙烯腈抽丝、丁二烯抽提等工艺中。
Dimethylformamide(DMF)is widely used in leather industry, polyacrylonitrile fibre spinning and butadiene extraction craft as an important organic solvent.
卤素阴离子能够同煤分子通过酸碱作用而强烈缔合，从而破坏了煤分子的缔合结构，提高了煤在有机溶剂中的抽提率。
Halogenide anions can associate strongly with coal molecules by acid -base interactions, and destruct the associative structure of coal enhancing the extraction yields of coal in organic solvents.
分绍了丁二烯抽提工艺溶剂dmf的毒性及其主要预防措施。
Toxicity of DMF, which is a solvent in the butadiene extraction process, was introduced. Its principal preventive measures were described also.
叙述了芳烃抽提原理及工艺概况、环丁砜溶剂的特点、环丁砜氧化降解给芳烃生产带来的危害，提出了环丁砜的保护措施。
The aromatics extraction principles and process outlines, the features of sulfolane and the measures on protection of sulfolane from oxidization and degradation were discussed in this paper.
介绍了用一种碱性复合溶剂体系，在比较缓和的条件下，通过化学反应和抽提从直馏柴油中脱除石油酸的工艺过程。
Petroleum acids was removed from straight-run diesel distillate through chemical reaction and extraction under moderate conditions using an alkaline complex solution.
基于煤岩分析、仪器分析及有机溶剂抽提等方法，对焦坪煤进行了系统的煤岩、煤质研究。
This paper deals with petrographic characteristics and coal qualities of Jiaoping coal by means of coal petrologic, instrumental analytical and organic solution extraction methods, and so on.
主要介绍以纯糠醛为溶剂的芳烃抽提小试实验。
The aromatic extraction laboratory scale test was mainly introduced in this paper.
主要介绍以纯糠醛为溶剂的芳烃抽提小试实验。
The aromatic extraction laboratory scale test was mainly introduced in this paper.
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