摘要
考察了各种活化条件对双核羧酸钼催化剂活性的影响,提出了各项优化条件,发现了不同于单金属烯烃歧化催化剂的特性。结果表明,用双核苯甲酸钼制备的金属簇催化剂的活性远优于双核乙酸钼、丁酸钼、戊酸钼制备的催化剂。
The application of a novel catalyst, supported molybdenum cluster prepared by decomposition of molybdenum (Ⅱ) carboxylates, to olefin disproportionation is a new direction in this field. The preparation of the supported molybdenum cluster catalyst is described. Different kinds of activation condition and the resulted catalytic activities for the propylene disproportionation have been studied. Experimental results show that the catalyst from Mo_2(OCOC_6H_5)_4 is superior to those from Mo_2(OCOCH_3)_4, Mo_2(OCOC_3H_7)_4 or Mo_2(OCOC_4H_9)_4 in respect of their catalytic activities.
关键词
双核羧酸钼
丙烯
烯烃歧化
催化
molybdenum (Ⅱ) carboxylate
olefin disproportionation
propylene
tetrakis[μ- (acetato-O: O)] dimolybdenum
tetrakis [μ- (butanoato-O: O) dimolybdenum
tetrakis [μ-(benzoato-O: O)] dimolybdenum
metal cluster catalyst
