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CATALYSTS HAVING STRONG METALLCARRIER INTERACTION

机译：具有强金属载体相互作用的催化剂

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摘要

This invention relates to a class of heterogeneous catalysts. More particularly, it pertains to catalysts consisting of group VIII metals dispersed on oxide carriers selected from the group consisting of Ti, V, Nb and Ta and mixtures thereof, and zirconium titanate and BaTiO. sub.3, it having been discovered that these oxide carriers are capable of exerting remarkable effects on the properties of the Group VIII metals so dispersed. Among the strong effects on the properties of supported Group VIII metals which these carriers have been observed to bring about are the suppression of the capacity of the Group VIII metals to chemisorb hydrogen at room temperature, the suppression of the capacity of the Group VIII metals to chemisorb carbon monoxide at room temperature and profound alterations in the activity and/or selectivity of various Group VIII metals in reactions such as the dehydrocyclization of n-heptane and the hydrogenolysis of ethane.PPThese catalyst compositions which exhibit suppression of H.sub.2 and CO chemisorption are prepared by methods known in the art, but differ from the prior art methods in that reduction in a hydrogen or other reducing gas atmosphere at a temperature sufficient to result in a catalyst possessing the desired characteristics is a necessary step.

机译：本发明涉及一类非均相催化剂。更特别地，本发明涉及由分散在选自Ti，V，Nb和Ta及其混合物的氧化物载体上的VIII族金属，钛酸锆和BaTiO组成的催化剂。在sub.3中，已经发现这些氧化物载体能够对如此分散的VIII族金属的性质产生显着影响。观察到这些载体对负载的第VIII族金属的性能产生的强烈影响包括：抑制VIII族金属在室温下化学吸附氢的能力，抑制VIII族金属对氢的吸附能力。在室温下化学吸附一氧化碳，并在反应中（例如正庚烷的脱氢环化和乙烷的氢解反应）使各种VIII族金属的活性和/或选择性发生重大变化。 H 2和CO化学吸附是通过本领域已知的方法制备的，但是与现有技术的方法的不同之处在于，在足以导致具有所需特性的催化剂的温度下，在氢气或其他还原性气体气氛中进行还原是必要的步骤。

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公开/公告号JPS6116505B2

专利类型
公开/公告日1986-04-30

原文格式PDF
申请/专利权人 EXXON RESEARCH ENGINEERING CO;
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申请/专利号JP19770038936
发明设计人 SHUN CHON FUAN;SAMIERU JEI TOOSUTAA;ROORENZU ERU MAARERU;
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申请日1977-04-05
分类号C10G35/085;B01J21/06;B01J23/02;B01J23/20;B01J23/22;B01J23/40;B01J23/46;B01J23/74;B01J23/84;B01J37/18;C07B61/00;C07C1/00;C07C4/06;C07C5/393;C07C5/41;C07C15/02;C07C15/04;C07C67/00;C10G35/06;C10G35/09;
国家 JP
入库时间 2022-08-22 07:49:41

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