US 12,077,627 B2
Aqueous methods for titanating a chromium/silica catalyst with an alkali metal
Anand Ramanathan, Bartlesville, OK (US); Max P. McDaniel, Bartlesville, OK (US); Jared Barr, Bartlesville, OK (US); Andrew T. Blagg, Oologah, OK (US); Christopher E. Wittner, Bartlesville, OK (US); Alan L Solenberger, Bartlesville, OK (US); Zachary T. Kilpatrick, Oologah, OK (US); and Micheal P. Stevens, Bartlesville, 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 Oct. 24, 2023, as Appl. No. 18/492,911.
Application 18/492,911 is a continuation in part of application No. 18/306,326, filed on Apr. 25, 2023.
Claims priority of provisional application 63/334,741, filed on Apr. 26, 2022.
Prior Publication US 2024/0084052 A1, Mar. 14, 2024
Int. Cl. C08F 4/78 (2006.01); C08F 4/02 (2006.01)
CPC C08F 4/78 (2013.01) [C08F 4/025 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A process for preparing a titanated silica support, the process comprising:
(i) contacting water, hydrogen peroxide, an alkali metal precursor and/or a zinc precursor, a titanium precursor, and a silica to form a first mixture;
(ii) contacting the first mixture with a nitrogen-containing compound to form a second mixture;
(iii) subjecting the second mixture to a reaction temperature in a range from 40 to 270° C.;
(iv) isolating a solid fraction from the second mixture and washing the solid fraction; and
(v) drying the solid fraction to form the titanated silica support.