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    • 26. 发明申请
    • REDUCTION CATALYSTS
    • 还原催化剂
    • US20130310605A1
    • 2013-11-21
    • US13894351
    • 2013-05-14
    • Rennovia, Inc.
    • George Fredrick SalemGuang ZhuAlfred Gerhard HagmeyerEric L. Dias
    • B01J23/46
    • B01J23/464B01J21/063B01J21/066B01J21/18B01J23/40B01J23/58B01J29/04B01J35/1014B01J35/1061B01J35/1066B01J37/0205B01J37/024C07C51/377C07C55/14
    • Disclosed are catalysts comprised of platinum and rhodium on a support selected from the group of zirconia, stabilized (doped) zirconia, zirconia-metal oxide composites, and mixtures thereof, wherein the outer surfaces of the support are selected from the group of zirconia, stabilized zirconia, and mixtures thereof. More particularly, the supported catalysts comprise platinum and rhodium, wherein the molar ratio of platinum to rhodium is in the range of about 3:1 to about 1:2. The average pore diameter of the catalyst supports is in the range of about 5 nm to about 70 nm and the surface area is in the range of about 15 m2/g to about 200 m2/g. Also disclosed are methods for the hydrodeoxygenation of carboxylic acids, mono- and/or di-lactones thereof having at least one hydroxyl group on the backbone thereof to corresponding acids where the backbone hydroxyl group has been reduced in the presence of the catalyst.
    • 公开了由选自氧化锆,稳定(掺杂)氧化锆,氧化锆 - 金属氧化物复合材料及其混合物的载体上的铂和铑组成的催化剂,其中载体的外表面选自氧化锆,稳定的 氧化锆及其混合物。 更具体地,载体催化剂包括铂和铑,其中铂与铑的摩尔比在约3:1至约1:2的范围内。 催化剂载体的平均孔径在约5nm至约70nm的范围内,并且表面积在约15m 2 / g至约200m 2 / g的范围内。 还公开了将羧酸,其主链上具有至少一个羟基的单 - 和/或二 - 内酯加氢脱氧至在催化剂存在下骨架羟基已被还原的相应酸的方法。