Abstract : A process for extraction of absolute oil from Sichuan 'paste' tobacco was optimized through single factor test and orthogonal test with n-hexane as extraction solvent.

摘要 ： 以四川‘糊烟’为原料，正己烷为提取溶剂，在单因素试验基础上再经正交试验优化‘糊烟’净油提取工艺；

youdao

Premium special solvent oil has been produced from kerosene fraction with LK-1 hydrogenation catalyst and single-stage hydrogenation process developed by LPECRI.

以煤油馏分为原料，采用洛阳石油化工工程公司工程研究院开发的LK 1型加氢催化剂及单段加氢工艺可生产出优质环保型特种溶剂油。

youdao