US 10,889,664 B2
Surfactant as titanation ligand
Max P. McDaniel, Bartlesville, OK (US); Kathy S. Clear, Bartlesville, OK (US); William C. Ellis, Bartlesville, OK (US); and Deloris R. Gagan, Ramona, OK (US)
Assigned to Chevron Phillips Chemical Company LP, The Woodlands, TX (US)
Filed by Chevron Phillips Chemical Company LP, The Woodlands, TX (US)
Filed on Jun. 12, 2019, as Appl. No. 16/439,078.
Prior Publication US 2020/0392263 A1, Dec. 17, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. C08F 4/22 (2006.01); C08F 4/76 (2006.01); C08F 4/02 (2006.01); C08F 4/78 (2006.01)
CPC C08F 4/76 (2013.01) [C08F 4/02 (2013.01); C08F 4/78 (2013.01)] 18 Claims
1. A method consisting of contacting a silica support with a titanium-containing solution to form a titanated silica support, wherein the titanium-containing solution consists of a titanium compound, a solvent, a carboxylate, and a surfactant, wherein the titanium-containing solution has a pH of less than about 5.5, wherein the surfactant comprises a water-insoluble component and a water-soluble component, wherein the titanium-containing solution comprises from about 5 wt. % to about 15 wt. % of the surfactant, based on weight of the surfactant and weight of the titanium, and wherein the aqueous titanium solution comprises an equivalent molar ratio of the carboxylate to the titanium compound in a range of from about 1 to about 4.