Meanwhile, an effective method of obtaining acidic components from heavy oil by solvent extraction was provided and the suitable extraction condition was explored.
同时建立了一种有效的溶剂萃取、浓缩超稠油中酸性组分的分离方法，并探讨了适宜的萃取条件。
Research work on the solvent extraction for palladium recovery from acidic solution developed in recent 10 years was described.
概述了近十多年来溶剂萃取法从酸性溶液中回收钯的研究工作。
The oxygen containing components are obtained from Gudong Crude oil of Shengli by solvent extraction and separated into acidic and other components chromatographically on silica gel column.
用溶剂萃取法从胜利孤东原油中萃取、浓缩出含有机酸的活性组分，用柱色谱分离成窄馏分并进行了波谱鉴定。
The Times of organic solvent extraction and of acid washing and the duration of acidic hydrolysis needed are established.
实验确定了有机溶剂萃取和酸洗次数及酸水解时间等操作参数。
The Times of organic solvent extraction and of acid washing and the duration of acidic hydrolysis needed are established.
实验确定了有机溶剂萃取和酸洗次数及酸水解时间等操作参数。
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