Patents by Inventor Eric L. Dias
Eric L. Dias 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).
-
Publication number: 20140350297Abstract: The present invention generally relates to processes for the chemocatalytic conversion of a pentose source to a glutaric acid product. The present invention includes processes for the conversion of pentose to a glutaric acid product via pentaric acid or derivatives thereof. The present invention also includes processes comprising the catalytic oxidation of pentose to pentaric acid and catalytic hydrodeoxygenation of pentaric acid or derivatives thereof to a glutaric acid product.Type: ApplicationFiled: May 30, 2014Publication date: November 27, 2014Applicant: Rennovia, Inc.Inventors: Thomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy
-
Publication number: 20140343323Abstract: Processes are disclosed for the conversion of a carbohydrate source to hexamethylenediamine (HMDA) and to intermediates useful for the production of hexamethylenediamine and other industrial chemicals. HMDA is produced by direct reduction of a furfural substrate to 1,6-hexanediol in the presence of hydrogen and a heterogeneous reduction catalyst comprising Pt or by indirect reduction of a furfural substrate to 1,6-hexanediol wherein 1,2,6-hexanetriol is produced by reduction of the furfural substrate in the presence of hydrogen and a catalyst comprising Pt and 1,2,6-hexanediol is then converted by hydrogenation in the presence of a catalyst comprising Pt to 1,6 hexanediol, each process then proceeding to the production of HMDA by known routes, such as amination of the 1,6 hexanediol. Catalysts useful for the direct and indirect production of 1,6-hexanediol are also disclosed.Type: ApplicationFiled: May 29, 2014Publication date: November 20, 2014Applicant: RENNOVIA, INC.Inventors: Eric L. DIAS, James A. W. SHOEMAKER, Thomas R. BOUSSIE, Vincent J. MURPHY
-
Patent number: 8853458Abstract: Processes are disclosed for the conversion of a carbohydrate source to hexamethylenediamine (HMDA) and to intermediates useful for the production of hexamethylenediamine and other industrial chemicals. HMDA is produced by direct reduction of a furfural substrate to 1,6-hexanediol in the presence of hydrogen and a heterogeneous reduction catalyst comprising Pt or by indirect reduction of a furfural substrate to 1,6-hexanediol wherein 1,2,6-hexanetriol is produced by reduction of the furfural substrate in the presence of hydrogen and a catalyst comprising Pt and 1,2,6-hexanediol is then converted by hydrogenation in the presence of a catalyst comprising Pt to 1,6 hexanediol, each process then proceeding to the production of HMDA by known routes, such as amination of the 1,6 hexanediol. Catalysts useful for the direct and indirect production of 1,6-hexanediol are also disclosed.Type: GrantFiled: January 11, 2013Date of Patent: October 7, 2014Assignee: Rennovia, Inc.Inventors: Eric L. Dias, James A. W. Shoemaker, Thomas R. Boussie, Vincent J. Murphy
-
Publication number: 20140256982Abstract: The present invention generally relates to processes for the chemocatalytic conversion of a glucose source to an adipic acid product. The present invention includes processes for the conversion of glucose to an adipic acid product via glucaric acid or derivatives thereof. The present invention also includes processes comprising catalytic oxidation of glucose to glucaric acid or derivative thereof and processes comprising the catalytic hydrodeoxygenation of glucaric acid or derivatives thereof to an adipic acid product. The present invention also includes products produced from adipic acid product and processes for the production thereof from such adipic acid product.Type: ApplicationFiled: January 13, 2014Publication date: September 11, 2014Applicant: Rennovia, Inc.Inventors: Thomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy, James Shoemaker, Raymond Archer, Hong Jiang
-
Patent number: 8785683Abstract: The present invention generally relates to processes for the chemocatalytic conversion of a pentose source to a glutaric acid product. The present invention includes processes for the conversion of pentose to a glutaric acid product via pentaric acid or derivatives thereof. The present invention also includes processes comprising the catalytic oxidation of pentose to pentaric acid and catalytic hydrodeoxygenation of pentaric acid or derivatives thereof to a glutaric acid product.Type: GrantFiled: June 11, 2010Date of Patent: July 22, 2014Assignee: Rennovia, Inc.Inventors: Thomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy
-
Patent number: 8669393Abstract: Disclosed are compositions of matter comprising an adipic acid product of formula (1) wherein R is independently a salt-forming ion, hydrogen, hydrocarbyl, or substituted hydrocarbyl, and at least one constituent selected from the group consisting of formula (2) wherein R is as defined above and each of R1 is, independently, H, OH, acyloxy or substituted acyloxy provided, however, that at least one of R1 is OH, and formula (3) wherein R is as above defined and R1 is OH, acyloxy or substituted acyloxy. Also disclosed are compositions of matter comprising at least about 99 wt % adipic acid and least two constituents selected from the group consisting of formula (2) and formula (3), above.Type: GrantFiled: December 13, 2010Date of Patent: March 11, 2014Assignee: Rennovia, Inc.Inventors: Thomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy, James Shoemaker, Raymond Archer, Hong Jiang
-
Patent number: 8669397Abstract: The present invention generally relates to processes for the chemocatalytic conversion of a glucose source to an adipic acid product. The present invention includes processes for the conversion of glucose to an adipic acid product via glucaric acid or derivatives thereof. The present invention also includes processes comprising catalytic oxidation of glucose to glucaric acid or derivative thereof and processes comprising the catalytic hydrodeoxygenation of glucaric acid or derivatives thereof to an adipic acid product. The present invention also includes products produced from adipic acid product and processes for the production thereof from such adipic acid product.Type: GrantFiled: June 11, 2010Date of Patent: March 11, 2014Assignee: Rennovia, Inc.Inventors: Thomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy, James Shoemaker, Raymond Archer, Hong Jiang
-
Publication number: 20140024858Abstract: The present invention generally relates to processes for the chemocatalytic conversion of a carbohydrate source to an adipic acid product. The present invention includes processes for the conversion of a carbohydrate source to an adipic acid product via a furanic substrate, such as 2,5-furandicarboxylic acid or derivatives thereof. The present invention also includes processes for producing an adipic acid product comprising the catalytic hydrogenation of a furanic substrate to produce a tetrahydrofuranic substrate and the catalytic hydrodeoxygenation of at least a portion of the tetrahydrofuranic substrate to an adipic acid product. The present invention also includes products produced from adipic acid product and processes for the production thereof from such adipic acid product.Type: ApplicationFiled: July 1, 2013Publication date: January 23, 2014Inventors: Thomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy
-
Publication number: 20130345473Abstract: The present disclosure relates to processes for the separation of at least one di-carboxylic acid compound and/or at least one mono-carboxylic acid compound from a mixture. The separation processes involve contacting the mixture with an ion exchange medium to cause at least one of the mono- and/or di-carboxylic acid compounds to be retained by the medium, eluting at least one of the mono-carboxylic acid compound or the di-carboxylic acid compound using an eluent to form an eluate, wherein the eluate is enriched in at least one of the mono-carboxylic acid compound or di-carboxylic acid relative to the concentration of such eluted acid in the mixture having contacted the medium and wherein the eluent comprises an organic acid. The process has particular utility in the production of di-carboxylic acid compounds from glucose.Type: ApplicationFiled: November 30, 2012Publication date: December 26, 2013Applicant: Rennovia, Inc.Inventors: Raymond ARCHER, Gary M. DIAMOND, Eric L. DIAS, Vincent J. MURPHY, Miroslav PETRO, John D. SUPER
-
Publication number: 20130331606Abstract: Processes are disclosed for the conversion of 1,6-hexanediol to adipic acid employing a chemocatalytic reaction in which 1,6-hexanediol is reacted with oxygen in the presence of particular heterogeneous catalysts including at least one of platinum or gold. The metals are preferably provided on a support selected from the group of titania, stabilized titania, zirconia, stabilized zirconia, silica or mixtures thereof, most preferably zirconia stabilized with tungsten. The reaction with oxygen is carried out at a temperature from about 100° C. to about 300° C. and at a partial pressure of oxygen from about 50 psig to about 2000 psig.Type: ApplicationFiled: June 11, 2013Publication date: December 12, 2013Inventors: Eric L. DIAS, Vincent J. MURPHY, James A. W. SHOEMAKER
-
Publication number: 20130310605Abstract: Disclosed are catalysts comprised of platinum and rhodium on a support selected from the group of zirconia, stabilized (doped) zirconia, zirconia-metal oxide composites, and mixtures thereof, wherein the outer surfaces of the support are selected from the group of zirconia, stabilized zirconia, and mixtures thereof. More particularly, the supported catalysts comprise platinum and rhodium, wherein the molar ratio of platinum to rhodium is in the range of about 3:1 to about 1:2. The average pore diameter of the catalyst supports is in the range of about 5 nm to about 70 nm and the surface area is in the range of about 15 m2/g to about 200 m2/g. Also disclosed are methods for the hydrodeoxygenation of carboxylic acids, mono- and/or di-lactones thereof having at least one hydroxyl group on the backbone thereof to corresponding acids where the backbone hydroxyl group has been reduced in the presence of the catalyst.Type: ApplicationFiled: May 14, 2013Publication date: November 21, 2013Inventors: George Fredrick Salem, Guang Zhu, Alfred Gerhard Hagmeyer, Eric L. Dias
-
Patent number: 8501989Abstract: The present invention generally relates to processes for the chemocatalytic conversion of a carbohydrate source to an adipic acid product. The present invention includes processes for the conversion of a carbohydrate source to an adipic acid product via a furanic substrate, such as 2,5-furandicarboxylic acid or derivatives thereof. The present invention also includes processes for producing an adipic acid product comprising the catalytic hydrogenation of a furanic substrate to produce a tetrahydrofuranic substrate and the catalytic hydrodeoxygenation of at least a portion of the tetrahydrofuranic substrate to an adipic acid product. The present invention also includes products produced from adipic acid product and processes for the production thereof from such adipic acid product.Type: GrantFiled: June 11, 2010Date of Patent: August 6, 2013Assignee: Rennovia, Inc.Inventors: Thomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy
-
Publication number: 20120264908Abstract: The present invention generally relates to processes for the conversion of glucose to caprolactam employing chemocatalytic oxidation and reduction reactions. The present invention also includes processes for the conversion of glucose to caprolactam via amido polyhydroxy acid products and amidocaproic acid or derivatives thereof. The present invention also includes processes that catalytically oxidize an amidopolyol to amidopolyhydroxy acid or derivatives thereof, and processes that catalytically hydrodeoxygenate amino or amido polyhydroxy acid or derivatives thereof to an amino or amidocaproic acid product. The amino or amidocaproic acid product may then be converted to caprolactam. The present invention also includes products produced by such processes and products producable from such products.Type: ApplicationFiled: March 29, 2012Publication date: October 18, 2012Applicant: Rennovia, Inc.Inventors: Vincent J. MURPHY, Eric L. DIAS, James A. W. SHOEMAKER, Thomas R. BOUSSIE, Zachary M. FRESCO
-
Publication number: 20110306790Abstract: Disclosed are catalysts comprised of platinum and gold. The catalysts are generally useful for the selective oxidation of compositions comprised of a primary alcohol group and at least one secondary alcohol group wherein at least the primary alcohol group is converted to a carboxyl group. More particularly, the catalysts are supported catalysts including particles comprising gold and particles comprising platinum, wherein the molar ratio of platinum to gold is in the range of about 100:1 to about 1:4, the platinum is essentially present as Pt(0) and the platinum-containing particles are of a size in the range of about 2 to about 50 nm. Also disclosed are methods for the oxidative chemocatalytic conversion of carbohydrates to carboxylic acids or derivatives thereof. Additionally, methods are disclosed for the selective oxidation of glucose to glucaric acid or derivatives thereof using catalysts comprising platinum and gold. Further, methods are disclosed for the production of such catalysts.Type: ApplicationFiled: December 13, 2010Publication date: December 15, 2011Applicant: RENNOVIA, INC.Inventors: Vincent J. Murphy, James Shoemaker, Guang Zhu, Raymond Archer, George Frederick Salem, Eric L. Dias
-
Publication number: 20110218318Abstract: Disclosed are compositions of matter comprising an adipic acid product of formula (1) wherein R is independently a salt-forming ion, hydrogen, hydrocarbyl, or substituted hydrocarbyl, and at least one constituent selected from the group consisting of formula (2) wherein R is as defined above and each of R1 is, independently, H, OH, acyloxy or substituted acyloxy provided, however, that at least one of R1 is OH, and formula (3) wherein R is as above defined and R1 is OH, acyloxy or substituted acyloxy. Also disclosed are compositions of matter comprising at least about 99 wt % adipic acid and least two constituents selected from the group consisting of formula (2) and formula (3), above.Type: ApplicationFiled: December 13, 2010Publication date: September 8, 2011Applicant: RENNOVIA, INC.Inventors: Thomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy, James Shoemaker, Raymond Archer, Hong Jiang
-
Publication number: 20100317825Abstract: The present invention generally relates to processes for the chemocatalytic conversion of a pentose source to a glutaric acid product. The present invention includes processes for the conversion of pentose to a glutaric acid product via pentaric acid or derivatives thereof. The present invention also includes processes comprising the catalytic oxidation of pentose to pentaric acid and catalytic hydrodeoxygenation of pentaric acid or derivatives thereof to a glutaric acid product.Type: ApplicationFiled: June 11, 2010Publication date: December 16, 2010Applicant: RENNOVIA, INC.Inventors: Thomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy
-
Publication number: 20100317822Abstract: The present invention generally relates to processes for the chemocatalytic conversion of a carbohydrate source to an adipic acid product. The present invention includes processes for the conversion of a carbohydrate source to an adipic acid product via a furanic substrate, such as 2,5-furandicarboxylic acid or derivatives thereof. The present invention also includes processes for producing an adipic acid product comprising the catalytic hydrogenation of a furanic substrate to produce a tetrahydrofuranic substrate and the catalytic hydrodeoxygenation of at least a portion of the tetrahydrofuranic substrate to an adipic acid product. The present invention also includes products produced from adipic acid product and processes for the production thereof from such adipic acid product.Type: ApplicationFiled: June 11, 2010Publication date: December 16, 2010Applicant: RENNOVIA, INC.Inventors: Thomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy
-
Publication number: 20100317823Abstract: The present invention generally relates to processes for the chemocatalytic conversion of a glucose source to an adipic acid product. The present invention includes processes for the conversion of glucose to an adipic acid product via glucaric acid or derivatives thereof. The present invention also includes processes comprising catalytic oxidation of glucose to glucaric acid or derivative thereof and processes comprising the catalytic hydrodeoxygenation of glucaric acid or derivatives thereof to an adipic acid product. The present invention also includes products produced from adipic acid product and processes for the production thereof from such adipic acid product.Type: ApplicationFiled: June 11, 2010Publication date: December 16, 2010Applicant: RENNOVIA, INC.Inventors: Thomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy, James Shoemaker, Raymond Archer, Hong Jiang
-
Publication number: 20100081577Abstract: A reactor system includes a housing and a plurality of reactors at least partially contained in the housing. The reactors each have a containment structure enclosing an internal space in the reactor. The containment structure including a circumferential sidewall having opposite ends and surrounding at least a portion of said internal space. The sidewall has a thermal mass and a sidewall heater adjacent an exterior surface of the sidewall. The ratio of the thermal mass of the sidewall to a volume of the portion of the internal space that is surrounded by the sidewall is relatively low.Type: ApplicationFiled: September 30, 2008Publication date: April 1, 2010Applicant: SYMYX TECHNOLOGIES, INC.Inventors: Robbie Singh Sidhu, Thomas Harding McWaid, Gary M. Diamond, Keith Anthony Hall, Susan J. Schofer, Eric L. Dias, Thomas R. Boussie, Victor O. Nava-Salgado
-
Acid activation of ruthenium metathesis catalysts and living ROMP metathesis polymerization in water
Patent number: 6486279Abstract: Activation of ruthenium based catalyst compounds with acid to improve reaction rates and yields of olefin metathesis reactions, including ROMP, RCM, ADMET and cross-methasis reactions is disclosed. The ruthenium catalyst compounds are ruthenium carbene complexes of the general formula AxLyXzRu═CHR′ where x=0, 1 or 2, y=0, 1 or 2, and z=1 or 2 and where R′ is hydrogen or a substituted or unsubstituted alkyl or aryl, L is any neutral electron donor, X is any anionic ligand, and A is a ligand having a covalent structure connecting a neutral electron donor and an anionic ligand. The use of acid with these catalysts allows for reactions with a wide range of olefins in a variety of solvents, including acid-initiated RIM processes and living ROMP reactions of water-soluble monomers in water.Type: GrantFiled: June 14, 2001Date of Patent: November 26, 2002Assignee: California Institute of TechnologyInventors: David M. Lynn, Eric L. Dias, Robert H. Grubbs, Bernard Mohr