By controlling reaction condition in different steps and hydrogenated with Raney Ni,most of components were converted into industrial grade p-menthane without purification.
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
，
需提纯，即达
工业级的要
。
;薄荷By controlling reaction condition in different steps and hydrogenated with Raney Ni,most of components were converted into industrial grade p-menthane without purification.
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，需提纯，即达工业级的要。
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