Patents by Inventor Tatiana H. Sonnenberg
Tatiana H. Sonnenberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9024089Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product may be recovered using an extractive separation. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture.Type: GrantFiled: November 18, 2011Date of Patent: May 5, 2015Assignee: Celanese International CorporationInventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg
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Patent number: 8975451Abstract: The process involves esterifying ethanol and acetic acid to produce an esterification product that is in a single phase that is directly reduced, by hydrogenolysis, to produce ethanol. The single phase is not capable of separating. Feeding a single phase feed stream reduces the separation of the esterification product. Hydrogen may be fed to the esterification reactor that operates at a high pressure that is substantially similar to or greater than the hydrogenolysis reactor.Type: GrantFiled: March 15, 2013Date of Patent: March 10, 2015Assignee: Celanese International CorporationInventors: Tatiana H. Sonnenberg, Wei Qi, R. Jay Warner
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Patent number: 8926718Abstract: In one embodiment, the present invention is to an ethanol composition comprising at least 92 wt. % ethanol and from 20 wppm to 94 wppm isopropanol. The composition may be free of methanol and acetaldehyde.Type: GrantFiled: March 15, 2013Date of Patent: January 6, 2015Assignee: Celanese International CorporationInventors: Tatiana H. Sonnenberg, R. Jay Warner, Heiko Weiner
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Patent number: 8884052Abstract: In one embodiment, the invention is to a process for producing a vinyl acetate composition by contacting a vinyl acetate stream with acetic acid, ethylene, and oxygen to form a reaction mixture and reacting the reaction mixture in a reactor under conditions effective to form a crude vinyl acetate composition comprising vinyl acetate, water, acetic acid and at least 0.1 wt % diacetoxyethylene.Type: GrantFiled: December 15, 2011Date of Patent: November 11, 2014Assignee: Celanese International CorporationInventors: Joseph G. Duff, Stephen Kerlegon, Kien V. Phung, Daniel Rangel-Osalde, Tatiana H. Sonnenberg, Cathy L. Tway, Hang Wang
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Patent number: 8859827Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying an excess molar ratio of acetic acid with an alcohol, such as ethanol, to produce the esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture.Type: GrantFiled: November 18, 2011Date of Patent: October 14, 2014Assignee: Celanese International CorporationInventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg
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Patent number: 8853468Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying, in the vapor phase, acetic acid and an alcohol such as ethanol to produce the esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture.Type: GrantFiled: November 18, 2011Date of Patent: October 7, 2014Assignee: Celanese International CorporationInventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg
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Publication number: 20140275637Abstract: In one embodiment, the present invention is to an ethanol composition comprising at least 92 wt. % ethanol and from 20 wppm to 94 wppm isopropanol. The composition may be free of methanol and acetaldehyde.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: CELANESE INTERNATIONAL CORPORATIONInventors: Tatiana H. Sonnenberg, R. Jay Warner, Heiko Weiner
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Publication number: 20140275640Abstract: The process involves esterifying ethanol and acetic acid to produce an esterification product that is in a single phase that is directly reduced, by hydrogenolysis, to produce ethanol. The single phase is not capable of separating. Feeding a single phase feed stream reduces the separation of the esterification product. Hydrogen may be fed to the esterification reactor that operates at a high pressure that is substantially similar to or greater than the hydrogenolysis reactor.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: CELANESE INTERNATIONAL CORPORATIONInventors: Tatiana H. Sonnenberg, Wei Qi, R. Jay Warner
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Patent number: 8829251Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying, in the liquid phase, acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture.Type: GrantFiled: November 18, 2011Date of Patent: September 9, 2014Assignee: Celanese International CorporationInventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg
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Publication number: 20140024766Abstract: In one embodiment, the invention is to a vinyl acetate/diacetoxyethylene copolymer, processes of making the copolymer and processes of hydrolyzing said copolymer to form a copolymerized polyvinyl alcohol.Type: ApplicationFiled: July 20, 2012Publication date: January 23, 2014Applicant: Celanese International CorporationInventors: Joseph G. Duff, Stephen Kerlegon, Kien-Van Phung, Daniel Rangel-Osalde, Tatiana H. Sonnenberg, Cathy Tway, Hang Wang
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Publication number: 20130158289Abstract: In one embodiment, the invention is to a process for producing a vinyl acetate composition by contacting a vinyl acetate stream with acetic acid, ethylene, and oxygen to form a reaction mixture and reacting the reaction mixture in a reactor under conditions effective to form a crude vinyl acetate composition comprising vinyl acetate, water, acetic acid and at least 0.1 wt % diacetoxyethylene.Type: ApplicationFiled: December 15, 2011Publication date: June 20, 2013Applicant: CELANESE INTERNATIONAL CORPORATIONInventors: Joseph G. Duff, Stephen Kerlegon, Kien V. Phung, Daniel Rangel-Osalde, Tatiana H. Sonnenberg, Cathy L. Tway, Hang Wang
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Publication number: 20130131396Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying an excess molar ratio of acetic acid with an alcohol, such as ethanol, to produce the esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture.Type: ApplicationFiled: November 18, 2011Publication date: May 23, 2013Applicant: Celanese International CorporationInventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg
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Publication number: 20130131393Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product may be recovered using an extractive separation. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture.Type: ApplicationFiled: November 18, 2011Publication date: May 23, 2013Applicant: Celanese International CorporationInventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg
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Publication number: 20130131398Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising ethyl acetate, ethanol, and at least one alcohol having at least 4 carbon atoms. The ethanol is recovered with a reduced amount of the alcohol having at least 4 carbon atoms.Type: ApplicationFiled: November 18, 2011Publication date: May 23, 2013Applicant: CELANESE INTERNATIONAL CORPORATIONInventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg
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Publication number: 20130131397Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying, in the liquid phase, acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture.Type: ApplicationFiled: November 18, 2011Publication date: May 23, 2013Applicant: Celanese International CorporationInventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg
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Publication number: 20130131198Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying, in the vapor phase, acetic acid and an alcohol such as ethanol to produce the esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture.Type: ApplicationFiled: November 18, 2011Publication date: May 23, 2013Applicant: Celanese International CorporationInventors: R. Jay Warner, Wei Qi, Tatiana H. Sonnenberg
