US 9,808,790 B2
Processes for the manufacturing of oxidation catalysts
Vincent J. Murphy, San Jose, CA (US); James Shoemaker, Gilroy, CA (US); Guang Zhu, Union City, CA (US); Raymond Archer, San Jose, CA (US); George Frederick Salem, Los Altos, CA (US); and Eric L. Dias, Belmont, CA (US)
Assigned to Rennovia Inc., Santa Clara, CA (US)
Filed by Rennovia Inc., Santa Clara, CA (US)
Filed on Oct. 12, 2016, as Appl. No. 15/291,786.
Application 15/291,786 is a division of application No. 12/966,702, filed on Dec. 13, 2010.
Application 12/966,702 is a continuation in part of application No. 12/814,188, filed on Jun. 11, 2010, granted, now 8,669,397, issued on Mar. 11, 2014.
Prior Publication US 2017/0028386 A1, Feb. 2, 2017
Int. Cl. B01J 23/52 (2006.01); B01J 23/42 (2006.01); C07C 51/235 (2006.01); C07C 51/377 (2006.01); C07C 51/41 (2006.01); C07C 209/00 (2006.01); C07C 253/00 (2006.01); C07D 201/08 (2006.01); C07D 223/10 (2006.01); C07D 309/30 (2006.01); C08G 63/16 (2006.01); C08G 69/14 (2006.01); C08G 69/26 (2006.01); C08G 69/36 (2006.01); B01J 21/06 (2006.01); B01J 21/08 (2006.01); B01J 29/06 (2006.01); B01J 35/00 (2006.01); B01J 37/02 (2006.01); B01J 37/18 (2006.01)
CPC B01J 23/52 (2013.01) [B01J 21/063 (2013.01); B01J 21/066 (2013.01); B01J 21/08 (2013.01); B01J 23/42 (2013.01); B01J 29/06 (2013.01); B01J 35/0006 (2013.01); B01J 35/0013 (2013.01); B01J 37/0211 (2013.01); B01J 37/0236 (2013.01); B01J 37/0248 (2013.01); B01J 37/18 (2013.01); C07C 51/235 (2013.01); C07C 51/377 (2013.01); C07C 51/412 (2013.01); C07C 209/00 (2013.01); C07C 253/00 (2013.01); C07D 201/08 (2013.01); C07D 223/10 (2013.01); C07D 309/30 (2013.01); C08G 63/16 (2013.01); C08G 69/14 (2013.01); C08G 69/26 (2013.01); C08G 69/36 (2013.01); C07B 2200/07 (2013.01); Y02P 20/582 (2015.11)] 23 Claims
 
1. A process for manufacturing an oxidation catalyst comprising the steps of:
a) mixing a support with an aqueous solution comprising at least one gold-containing compound to form a slurry,
b) adding a base to the slurry to form an insoluble gold complex which deposits on the surface of the support thereby forming a gold-containing support,
c) heating the gold-containing support,
d) mixing the gold-containing support from step c) with an aqueous solution or a colloid comprising at least one platinum-containing compound to impregnate the gold-containing support with the platinum-containing compound,
e) drying the resulting impregnated support from step d) at a temperature up to about 120° C., and
f) reducing platinum on the dried impregnated support from step e) at a temperature in the range of from about 200° C. to about 600° C. to produce the oxidation catalyst, wherein the oxidation catalyst comprises particles comprising gold and particles comprising platinum on the support, the molar ratio of platinum to gold of the catalyst is in the range of from about 100:1 to about 1:4, the platinum is substantially present on the support as Pt(0), and the particle sizes of the particles comprising platinum are substantially in the range of from about 2 to about 50 nanometer, and wherein the catalyst has the ability to catalyze oxidation of glucose to glucaric acid.