Debra I Jackson

US Patent:

20180221787, Aug 9, 2018

Filed:

Feb 1, 2018

Appl. No.:

15/886446

Inventors:

- Houston TX, US
Ha H. Nguyen - Houston TX, US
Dan D. Lindsey - Houston TX, US
Barbara Kimmich - Houston TX, US
Nicholas Bruschi - Houston TX, US
Justin E. Turner - Houston TX, US
Debra L. Jackson - Houston TX, US
Anthony S. Dearth - Houston TX, US

Assignee:

Lyondell Chemical Technology, L.P. - Houston TX

International Classification:

B01D 11/04
C07D 301/32
C07C 15/46
C07C 7/10
C07C 7/12

Abstract:

A method including contacting an organic stream with water and carbon dioxide, whereby sodium is extracted from the organic stream, and separating an aqueous sodium salt-containing phase from an organic phase comprising a reduced sodium content. The organic stream can be a heavy residue formed in the co-production of propylene oxide and styrene. Contacting can include combining the carbon dioxide with the water to form a CO-saturated water stream and contacting the CO-saturated water stream with the organic stream, and/or combining the organic stream and the water to form a mixture and injecting the carbon dioxide as a gas thereinto. The method can further include repeating the contacting and the separating one or more times on the organic phase, subjecting the organic phase to ion exchange, or both, to obtain an organic phase having a further reduced sodium content. A system for carrying out the method is also provided.

US Patent:

20170158655, Jun 8, 2017

Filed:

Nov 17, 2016

Appl. No.:

15/353998

Inventors:

- Houston TX, US
Barbara Kimmich - Houston TX, US
Xueyong Yang - Bellaire TX, US
Jenny M. Oran Osment - Humble TX, US
Debra L. Jackson - Huffman TX, US

Assignee:

Lyondell Chemical Technology, L.P. - Houston TX

International Classification:

C07D 301/19
B01J 21/08
B01J 37/06
B01J 37/02
B01J 37/08
B01J 21/06
B01J 35/10

Abstract:

A catalyst composition which comprises titanium, wherein part of the titanium is present as a titanium dioxide phase and at least some of the titanium dioxide phase is in the brookite polymorphic form is provided. In some embodiments, the catalyst also comprises a silica support which exhibits a high surface area and pore volume. Methods of preparing the catalyst and its use in an epoxidation reaction are also provided.