The post-treatment of dehydrogenating hydrated exo-2-camphanol catalyzed by active bentonite is studied, and the anisalcohol analogues and other by-products are removed from reactants.
采用活性膨润土为催化剂、催化水合异龙脑脱氢后处理反应，除去茴香醇类物质和其他副产物。
The active and dead bentonite contents in green sand system have great effect on the sand properties, but it is very difficult to measure them in actual shop.
型砂系统中的有效膨润土和失效膨润土含量对其性能有很大影响，而生产中对这两个参数的检测比较困难。
The coagulant is produced with bentonite, ferrite and active carbon and through crushing to 80-100 mesh, mixing through stirring for 1-2 hr and stacking for 15-24 hr to mature.
其主要采用斑脱岩、亚铁盐、活性碳在常温下进行粉碎，粉碎细度为80 ~ 100目，在常温下再进行混合搅拌1 ~ 2小时，堆放15 ~ 24小时成熟后即成产品。
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