| abstract |
PURPOSE: To manufacture crystaline silicate with superior catalytic function by adding alcohols, ammonia or org. amines to a mixture consisting of silica, a transition metal, alumina, an alkali metal and water and by reacting them. n CONSTITUTION: As the silica source a common source is used, and sodium aluminate is most suitable for use as the alumina source. As the alkali metal its Na, K or Ca salt is used, and as the trasition metal Fe, Co, Ni, La, Ti or Cr is used. The alcohols include methanol, ethanol and ethylene glycol, and the org. amines include n-propylamine and diethanolamine. The reaction temp. is about 80W300°C, and the reaction time is about 0.5W14 days. The reaction mixture is cooled to room temp., filtered and washed to separate crystals, which are then dried at ≥ about 100°C for about 5W24hr. n COPYRIGHT: (C)1982,JPO&Japio |