| 摘要 |
1,150,380. Reduction catalysts. E. I. DUPONT DE NEMOURS & CO. 21 Dec., 1966 [23 Dec., 1965], No. 57276/66. Heading B1E [Also in Divisions C2 and C5] Reduction catalysts comprise a platinum group metal or compound thereof supported on either a rare earth metal hydroxy carbonate carrier having a CO 3 " content of 20-95% or a mixture of a R.E. metal oxide and 80% R.E. carbonate. Specified are Pt, Pd, Os, Ir, Ru, Rlr and all the elements Atomic No. 57-71 inclusive + Y. Proprietary R.E. mixtures e.g. didymum are used in examples. The catalysts may be calcined to partially convert hydroxy carbonate to the corresponding oxide. |
