... oil,vaseline,etc.♦Used for recycling and regeneration of industrial waste oil,such as machine oil,lubricating ... purpose.♦Decoloration and refinement of resin and natrum.♦Decoloration and refinement of polyether.♦Separation of olefin in arene and alkene ... ,petroleum schizolysis,polymerization and catalysis of olefin.4)Quality ...