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2. 发明授权

US5510552A Process using a catalyst to dehydrogenate an alkyl aromatic compound 失效
标题翻译：使用催化剂使烷基芳族化合物脱氢的方法
公开(公告)号：US5510552A
公开(公告)日：1996-04-23
申请号：US310137
申请日：1994-09-21
申请人： Phillip W. Dellinger , Rebecca G. Moore , Fred A. Sherrod , Allen R. Smith
发明人： Phillip W. Dellinger , Rebecca G. Moore , Fred A. Sherrod , Allen R. Smith
IPC分类号： B01J23/78 , B01J27/232 , B01J37/00 , C07C5/333 , C07C15/44
CPC分类号： B01J37/0009 , B01J23/78 , C07C5/3332
摘要： A process using a particular catalyst in the dehydrogenation of an alkyl aromatic compound, e.g., ethylbenzene, to form a vinyl aromatic compound, e.g., styrene. The catalyst comprises a calcination product of (a) at least one iron oxide; (b) at least one carbonate, bicarbonate, oxide or hydroxide of potassium and/or cesium; (c) an oxide, carbonate, nitrate or hydroxide of cerium, or a mixture of at least two thereof; (d) an hydraulic cement; (e) an hydroxide, carbonate, bicarbonate, acetate, oxalate, nitrate, or sulfate of sodium, in an amount sufficient to provide from 0.2 to 10 percent sodium, calculated as sodium oxide, by weight of the calcined catalyst; and (f) a carbonate, sulfate, or hydroxide, of calcium or a mixture of at least two thereof, in an amount sufficient to provide from 1.5 to 20 percent calcium, calculated as calcium oxide, by weight of the calcined catalyst. The catalyst has improved moisture stability compared to catalysts in which at least one of (e) or (f) is not met.
摘要翻译：在烷基芳族化合物例如乙苯的脱氢中使用特定催化剂以形成乙烯基芳族化合物例如苯乙烯的方法。催化剂包括（a）至少一种氧化铁的煅烧产物; （b）钾和/或铯的至少一种碳酸盐，碳酸氢盐，氧化物或氢氧化物; （c）铈的氧化物，碳酸盐，硝酸盐或氢氧化物，或其至少两种的混合物; （d）水硬水泥; （e）钠的氢氧化物，碳酸盐，碳酸氢盐，乙酸盐，草酸盐，硝酸盐或硫酸盐，其量足以按煅烧催化剂的重量提供0.2至10％的以氧化钠计的钠; 和（f）钙或其至少两种的混合物的碳酸盐，硫酸盐或氢氧化物，其量足以按煅烧催化剂的重量提供1.5至20％的以氧化钙计算的钙。与不满足（e）或（f）中的至少一种的催化剂相比，催化剂具有改善的水分稳定性。

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