The aromaticity of solvent oil in the sulfonation reaction was investigated. 考察了溶剂油磺化过程中芳烃含量的变化。
Refining n-heptane from solvent oil is an efficient and economic method and the refined n-heptane is now widely used in chemical industry. 摘要从溶剂油中提取具有广泛用途的正庚烷，是现阶段经济有效的方法。
