定性和定量分析在洗油的分离精制和深加工过程中起着重要的作用。

The qualitative and quantitative analysis play an important role in separation, refining and further processing of wash oil.

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由于热解油中物质的复杂性及共沸现象的存在，给热解油的分离提纯带来了很大的困难。

Because the complexity and mutual boiling existence of pyrolysis oil, it bring out much difficult to separate and purify pyrolysis oil.

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介绍了用重量法测定油砂中矿物油含量的方法，并且对测定的两个关键步骤即油砂中油的萃取以及矿物油的分离进行了重点讨论。

The method of determining the mineral oil content in the oil sand with weight was recommended. As two committed steps, extraction and separation of mineral oil were discussed.

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