	US 11,697,697 B2
	Methods of preparing a catalyst
Max P. McDaniel, Bartlesville, OK (US); Eric D. Schwerdtfeger, Bartlesville, OK (US); and Jeremy M. Praetorius, 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 Apr. 17, 2020, as Appl. No. 16/851,611.
Application 16/851,611 is a continuation of application No. 15/847,129, filed on Dec. 19, 2017, granted, now 10,654,953.
Claims priority of provisional application 62/440,188, filed on Dec. 29, 2016.
Prior Publication US 2020/0239608 A1, Jul. 30, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. C08F 110/02 (2006.01); C08F 4/18 (2006.01); C08F 4/24 (2006.01)

CPC C08F 110/02 (2013.01) [C08F 4/18 (2013.01); C08F 4/24 (2013.01)]

20 Claims

1. A titanium-containing hydrogel composition comprising:

a) a hydrogel having a silica content of from 18 wt. % to 35 wt. % based on a total weight of the hydrogel;

b) water; and

c) titanium.

7. A hydrogel produced by a reactant composition comprising:

a) an acid-soluble titanium-containing compound;

b) an alkali metal silicate;

c) water; and

d) an acid, and

having a silica content of from 18 wt. % to 35 wt. % based on a total weight of the hydrogel.

9. A hydrogel produced by process comprising:

contacting an acid-soluble titanium-containing compound with an acid to form a first mixture; and

contacting the first mixture with an alkali metal silicate to form the hydrogel having a silica content of from 18 wt. % to 35 wt. % based on a total weight of the hydrogel wherein contacting the first mixture with the alkali metal silicate to form a hydrogel occurs at a pH of less than 4.

18. A hydrogel produced by a reactant composition comprising:

a) an acid-soluble titanium-containing compound;

b) a chromium-containing compound;

c) an alkali metal silicate;

d) water; and

e) an acid;

having a silica content of from 18 wt. % to 35 wt. % based on a total weight of the hydrogel.