... and separating function for Rare-earth metal. 2. In pharmaceutical industry: used in Tetracycline, Oxytetracycline, Phenobarbital, and Borneol, ... etc. 3. In Light industry: polishing for Marble, rust-remover, bleaching, dirt-remover, ... powder, Butadiene catalyst, etc. 6. In electron industry: preparation of chemicals raw material for porcelain capacitor, ...