对孟烷制备工艺改进

Improvment on Preparation of p-Menthane

采用气质联用仪，微机图谱自动检索对不同来源的双戊烯的化学组成进行了分析。实施分阶段控制反应条件，用雷尼镍催化，使大多数组分均加氢成对孟烷，无需提纯，即达到工业级的要求。

Dipentene of different origin were analysed by GC-MC and computer autometic request mass spectrum.By controlling reaction condition in different steps and hydrogenated with Raney Ni,most of components were converted into industrial grade p-menthane without purification.