| US 7,612,014 B2 | ||
| Halide free precurors for catalysts | ||
| Tao Wang, Houston, Tex. (US); Leslie Wade, Pearland, Tex. (US); Ioan Nicolau, Corpus Christi, Tex. (US); Yumin Liu, San Jose, Calif. (US); Victor Wong, San Jose, Calif. (US); Barbara Kimmich, League City, Tex. (US); Jun Han, Sunnyvale, Calif. (US); Valery Sokolovskii, Sunnyvale, Calif. (US); Alfred Hagemeyer, Rheine, Del. (US); David M. Lowe, Sunnyvale, Calif. (US); Karin Yaccato, Cambridge, Mass. (US); and Anthony Volpe, Santa Clara, Calif. (US) | ||
| Assigned to Celanese International Corp., Dallas, Tex. (US) | ||
| Filed on Jul. 31, 2008, as Appl. No. 12/183,244. | ||
| Application 12/183244 is a division of application No. 10/993507, filed on Nov. 19, 2004. | ||
| Claims priority of provisional application 60/531415, filed on Dec. 19, 2003. | ||
| Claims priority of provisional application 60/530936, filed on Dec. 19, 2003. | ||
| Claims priority of provisional application 60/531486, filed on Dec. 19, 2003. | ||
| Claims priority of provisional application 60/530937, filed on Dec. 19, 2003. | ||
| Prior Publication US 2008/0287289 A1, Nov. 20, 2008 | ||
| Int. Cl. B01J 23/58 (2006.01); B01J 31/04 (2006.01); B01J 31/28 (2006.01) | ||
| U.S. Cl. 502—330 [502/170] | 19 Claims |
| 1. A method of producing a catalyst or pre-catalyst suitable for assisting in the production of alkenyl alkanoates, comprising:
contacting, simultaneous or sequentially, at least one catalytic precursor solution to a support material to place gold and
palladium on the support material,
wherein the at least one catalytic precursor solution is an aqueous solution that comprises one or more palladium and one
or more gold precursors selected from the group consisting of Pd(NH3)2(NO2)2, Pd(NH3)4(OH)2, Pd(NH3)4(NO3)2, Pd(NH3)4(OAc)2, Pd(NH3)2(OAc)2, Pd(NH3)4(HCO3)2, NaAuO2, NMe4AuO2, HAu(NO3)4 in nitric acid or combinations thereof, and
reducing the palladium or gold by contacting a reducing environment to the support material.
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