The aromaticity of solvent oil in the sulfonation reaction was investigated. 考察了溶劑油磺化過程中芳烴含量的變化。
Refining n-heptane from solvent oil is an efficient and economic method and the refined n-heptane is now widely used in chemical industry. 摘要從溶劑油中提取具有廣泛用途的正庚烷，是現階段經濟有效的方法。
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