The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 25, 1994
Filed:
Nov. 19, 1993
Yongfu Ma, Nanjing, CN;
Peicheng Wu, Nanjing, CN;
Yong Sun, Nanjing, CN;
Sangjian Zhu, Nanjing, CN;
Yuexin Huang, Nanjing, CN;
Weiying Yang, Nanjing, CN;
Kaiwen Yao, Nanjing, CN;
Youreng Zou, Nanjing, CN;
China Petro-Chemical Corporation, Beijing, CN;
Jing Ling Petrochemical Company, Sinopec, Beijing, CN;
Abstract
A dehydrogenating catalyst for saturated hydrocarbons comprising platinum, tin, sodium and .tau.-alumina. The support of the catalyst is a large pore diameter .tau.-Al.sub.2 O.sub.3 with dual pore diameter distribution. At least 40% of the total pore volume is contributed by pores with pore diameter in the range of 1000-10000 .ANG.. Platinum, tin, and sodium are impregnated onto support by co-impregnation method, followed by drying, calcinating, and steam-treating, as well as reducing by hydrogen, to prepare a long life dehydrogenating catalyst.