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:
Jan. 23, 1979
Filed:
Oct. 17, 1977
Michel Boudart, Portola Valley, CA (US);
Yiu-Lau Lam, Rio de Janeiro, BR;
The Board of Trustees of Leland Stanford Junior University, Stanford, CA (US);
Abstract
A highly active catalyst for oxidative dehydrogenation reactions made up of Pd-Au alloy particles containing about 40 to 80 aromatic percent Au and ranging from 15 to 40 A in size, said particles being supported in an amount of from about 1.5 to 10 weight percent on a silica or other suitable carrier. The alloy particles, which have a surface composition similar to the overall composition, are prepared by an ion-exchange method in which a stable AU III compound such as bisethylenediamine Au III chloride and a palladium salt are added to an aqueous ammoniacal dispersion of the carrier material (i.e. silica gel) to form a precursor which is subsequently reduced in dihydrogen.