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2. 发明授权

US4279737A Hydrodesulfurization over catalysts comprising chalcogenides of group VIII prepared by low temperature precipitation from nonaqueous solution 失效
标题翻译：包括通过从非水溶液中低温沉淀制备的第Ⅷ族硫族化物的催化剂的加氢脱硫
公开(公告)号：US4279737A
公开(公告)日：1981-07-21
申请号：US124956
申请日：1980-02-26
申请人： Russell R. Chianelli , Theresa Pecoraro
发明人： Russell R. Chianelli , Theresa Pecoraro
IPC分类号： B01J27/045 , B01J37/02 , C10G45/10 , C10G45/16 , C10G45/24 , C10G45/52
CPC分类号： C10G45/10 , B01J27/045 , B01J37/0201 , C10G45/16 , C10G45/24
摘要： A method is described for the preparation of chalcogenides of ruthenium, rhodium, osmium and iridium transition metals of the Periodic Table of the Elements which comprises mixing in the absence of an aqueous solvent a Group VIII transition metal salt with a source of chalcogenide, said chalcogenide being selected from the group consisting of sulfur, selenium, tellurium and mixtures thereof, yielding a precipitate of the formula MX.sub.y wherein M is selected from the group consisting of ruthenium, rhodium, osmium and iridium, X is sulfur, selenium, tellurium and mixtures thereof and y is a number ranging from about 0.1 to about 3, preferably 0.1 to about 2.5. By the practice of the nonaqueous synthesis technique, Group VIII chalcogenides are prepared which are finely divided, have a high surface area, small particle size and small crystallite size which are also free of excess sulfur, water and/or hydrolysis products. This technique also permits the preparation of a heretofore unobtainable composition, layered stoichiometric osmium disulfide. The precipitates which result as a consequence of the instant process may be cleansed of any anion salt coproduct by any technique common to the art, pumping under vacuum being one such technique, washing with a suitable solvent being another.Compounds of the formula MX.sub.y wherein M, X and y are as defined above, prepared by the low temperature, nonaqueous precipitation technique herein disclosed are superior sulfur-tolerant catalysts in catalytic processes, for example, hydrodesulfurization, hydrodenitrogenation, hydroconversion, hydrogenation.
摘要翻译：描述了用于制备元素周期表的钌，铑，锇和铱过渡金属的硫族化物的方法，该方法包括在不存在含水溶剂的情况下混合第VIII族过渡金属盐与硫族化物源，所述硫族化物选自硫，硒，碲及其混合物，得到式MXy的沉淀物，其中M选自钌，铑，锇和铱，X是硫，硒，碲及其混合物 y为约0.1至约3，优选为0.1至约2.5的数。通过非水合成技术的实践，制备了细分的，具有高表面积，小颗粒尺寸和小微晶尺寸的第VIII族硫属化物，其也不含过量的硫，水和/或水解产物。这种技术还允许制备迄今无法获得的组合物，层状化学计量的二硫化锇。作为本发明的结果而导致的沉淀物可以通过本领域普通技术的任何技术清洗任何阴离子盐副产物，在真空下抽真空是一种这样的技术，用合适的溶剂洗涤另一种。通过本文公开的低温非水沉淀技术制备的其中M，X和y如上所定义的式MXy的化合物是催化方法中的优异的耐硫催化剂，例如加氢脱硫，加氢脱氮，加氢转化，氢化。

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