| 摘要 |
1,232,865. Catalysts for isocyanate synthesis. OLIN CORP. 10 April, 1968 [10 April, 1967], No. 17281/68. Addition to 1,201,437. Heading B1E. [Also in Division C2] Catalysts for isocyanate synthesis comprise: (a) at least one inorganic copper compound, (b) at least one substance selected from palladium and rhodium and their halides and oxides, and (c) at least one oxide of vanadium, molybdenum, tungsten, niobium, chromium and tantalum. The catalyst may be supported on a conventional carrier. |
