1
Heiko Weiner, Victor J Johnston, John L Potts, Radmila Jevtic: Tunable catalyst gas phase hydrogenation of carboxylic acids. Celanese International Corporation, November 13, 2012: US08309772 (21 worldwide citation)

A process for selective formation of ethanol from acetic acid includes contacting a feed stream containing acetic acid and hydrogen at an elevated temperature with catalyst comprising platinum and tin on a high surface area silica promoted with calcium metasilicate. Selectivities to ethanol of over ...


2
Heiko Weiner, Victor J Johnston, John L Potts, Radmila Jevtic: Catalyst for gas phase hydrogenation of carboxylic acids having a support modified with a reducible metal oxide. Celanese International Corporation, Roberts Mlotkowski Safran & Cole P C, December 20, 2011: US08080694 (15 worldwide citation)

A process for selective formation of ethanol from acetic acid includes contacting a feed stream containing acetic acid and hydrogen at an elevated temperature with catalyst comprising platinum and tin on a high surface area silica promoted with calcium metasilicate. Selectivities to ethanol of over ...


3
Victor J Johnston, Laiyuan Chen, Barbara F Kimmich, Josefina T Chapman, James H Zink, Heiko Weiner, John L Potts, Radmila Jevtic: Processes for making ethanol from acetic acid. Celanese International Corporation, June 25, 2013: US08471075 (10 worldwide citation)

A process for selective formation of ethanol from acetic acid by hydrogenating acetic acid in the presence of first metal, a silicaceous support, and at least one support modifier. Preferably, the first metal is selected from the group consisting of copper, iron, cobalt, nickel, ruthenium, rhodium, ...


4
Heiko Weiner, Victor J Johnston, Radmila Jevtic: Processes for making tin-containing catalysts. Celanese International Corporation, Roberts Mlotkowski Safran & Cole PC, July 3, 2012: US08211821 (10 worldwide citation)

A process for producing a catalyst comprising the steps of contacting a support with a mixed metal precursor comprising tin oxalate, a second metal precursor, a solubilizing agent such as ammonium oxalate, and water to form an impregnated support and heating the impregnated support under conditions ...


5
Victor J Johnston, Laiyuan Chen, Barbara F Kimmich, Josefina T Chapman, James H Zink, Heiko Weiner, John L Potts, Radmila Jevtic: Catalysts for making ethanol from acetic acid. Celanese International Corporation, August 6, 2013: US08501652 (8 worldwide citation)

Catalysts and processes for forming catalysts for use in hydrogenating acetic acid to form ethanol. In one embodiment, the catalyst comprises a first metal, a silicaceous support, and at least one metasilicate support modifier. Preferably, the first metal is selected from the group consisting of cop ...


6
Zhenhua Zhou, Victor Johnston, Heiko Weiner: Cobalt and tin catalysts for producing ethanol. Celanese International Corporation, June 4, 2013: US08455702 (7 worldwide citation)

The present invention relates to a process for the formation of ethanol from a mixed feed, the steps of the process comprising: contacting a feed stream containing the mixed feed and hydrogen at an elevated temperature with a hydrogenation catalyst comprising from 3 to 25 wt. % of a substantially eq ...


7
Karsten Rehberg, Jens Sturies, Heiko Weiner: Plug means for closing holes in the body of vehicles. ITW Ateco G m b H, Lowe Hauptman Gilman & Berner, October 9, 2001: US06299177 (6 worldwide citation)

Plug means for closing holes in the body of vehicles, whereby it comprises valve means having a valve member which normally is biased towards a sealing edge and which opens if a predetermined pressure drop between the interior of the body and the exterior thereof occurs.


8
Radmila Jevtic, Victor J Johnston, R Jay Warner, Heiko Weiner: Process for making ethanol from acetic acid using acidic catalysts. Celanese International Corporation, October 1, 2013: US08546622 (5 worldwide citation)

A process for selective formation of ethanol from acetic acid by hydrogenating acetic acid in the presence of a catalyst comprises a first metal on an acidic support. The acidic support may comprise an acidic support material or may comprise an support having an acidic support modifier. The catalyst ...


9
Victor J Johnston, Laiyuan Chen, Barbara F Kimmich, Josefina T Chapman, James H Zink, Heiko Weiner, John L Potts, Radmila Jevtic: Processes for making ethanol from acetic acid using bimetallic catalysts. Celanese International Corporation, March 25, 2014: US08680321 (5 worldwide citation)

A process for selective formation of ethanol and/or ethyl acetate from acetic acid by hydrogenating acetic acid in the presence of a Pt/Sn catalyst or a Re/Pd catalyst. The catalyst may further comprise a support modifier to improve selectivity for the desired product.


10
Radmila Jevtic, Victor J Johnston, R Jay Warner, Heiko Weiner, Nathan Bower, Josefina T Chapman, Gerald Grusendorf: Process for purifying ethanol. Celanese International Corporation, November 6, 2012: US08304586 (4 worldwide citation)

Purifying and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In addition, the process involves returning acetaldehyde s ...