| 摘要 |
1,151,872. Hydration catalysts. JAPAN GASOLINE CO. Ltd. 27 May, 1966 [27 May, 1965], No. 23945/66. Heading B1E. [Also in Division C2] An hydration catalyst comprises WO x where x>2.5 but <3 and 5-5% Cr 2 O 3 . Conventional preparation is described from say ammonium para tungstate and a chromate or dichromate followed by calcination, reduction and pelleting. The use of pellets measuring 3 x mms. is described. Reduction of WO 3 to WO X may be effected with hydrogen on olefin feed. |
