Patents by Inventor Leo E. Manzer

Leo E. Manzer 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: 20110245514
    Abstract: A process for making a hydrogenated product includes providing a clarified DAS-containing fermentation broth; distilling the broth under super atmospheric pressure at a temperature of >100° C. to about 300° C. to form an overhead that includes water and ammonia, and a liquid bottoms that includes SA, and at least about 20 wt % water; cooling the bottoms to a temperature sufficient to cause the bottoms to separate into a liquid portion in contact with a solid portion that is substantially pure SA; separating the solid portion from the liquid portion; recovering the solid portion; hydrogenating the solid portion in the presence of at least one hydrogenation catalyst to produce the hydrogenated product including at least one of THF, GBL or BDO; and recovering the hydrogenated product.
    Type: Application
    Filed: March 18, 2011
    Publication date: October 6, 2011
    Applicant: BIOAMBER S.A.S.
    Inventors: Olan S. Fruchey, Leo E. Manzer, Dilum Dunuwila, Brian Terry Keen, Brooke Ashley Albin, Nye A. Clinton, Bernard Duane Dombek
  • Publication number: 20110213112
    Abstract: Alcohols are catalytically oxidized to aldehydes, in particular to benzaldehyde and diformylfuran, which are useful as intermediates for a multiplicity of purposes. The invention also relates to the polymerization of the dialdehyde and to the decarbonylation of the dialdehyde to furan.
    Type: Application
    Filed: May 6, 2011
    Publication date: September 1, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Vladimir Grushin, WALTER PARTENHEIMER, LEO E. MANZER
  • Publication number: 20110172475
    Abstract: Isobutene, isoprene, and butadiene are obtained from mixtures of C4 and/or C5 olefins by dehydrogenation. The C4 and/or C5 olefins can be obtained by dehydration of C4 and C5 alcohols, for example, renewable C4 and C5 alcohols prepared from biomass by thermochemical or fermentation processes. Isoprene or butadiene can be polymerized to form polymers such as polyisoprene, polybutadiene, synthetic rubbers such as butyl rubber, etc. in addition, butadiene can be converted to monomers such as methyl methacrylate, adipic acid, adiponitrile, 1,4-butadiene, etc. which can then be polymerized to form nylons, polyesters, polymethylmethacrylate etc.
    Type: Application
    Filed: January 7, 2011
    Publication date: July 14, 2011
    Applicant: GEVO, INC.
    Inventors: Matthew W. PETERS, Joshua D. Taylor, David E. Henton, Leo E. Manzer
  • Patent number: 7956203
    Abstract: Alcohols are catalytically oxidized to aldehydes, in particular to benzaldehyde and diformylfuran, which are useful as intermediates for a multiplicity of purposes. The invention also relates to the polymerization of the dialdehyde and to the decarbonylation of the dialdehyde to furan.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: June 7, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Vladimir Grushin, Walter Partenheimer, Leo E. Manzer
  • Publication number: 20110087000
    Abstract: The present invention is directed to a method for preparing renewable and relatively high purity p-xylene from biomass. For example, biomass treated to provide a fermentation feedstock is fermented with a microorganism capable of producing a C4 alcohol such as isobutanol, then sequentially dehydrating the isobutanol in the presence of a dehydration catalyst to provide a C4 alkene such as isobutylene, dimerizing the C4 alkene to a form one or more C8 alkenes such as 2,4,4-trimethylpentenes or 2,5-dimethylhexene, then dehydrocyclizing the C8 alkenes in the presence of a dehydrocyclization catalyst to selectively form renewable p-xylene in high overall yield. The p-xylene can then be oxidized to form terephthalic acid or terephthalate esters.
    Type: Application
    Filed: October 6, 2010
    Publication date: April 14, 2011
    Applicant: GEVO, Inc.
    Inventors: Matthew W. Peters, Joshua D. Taylor, Madeline Jenni, Leo E. Manzer, David E. Henton
  • Publication number: 20100216958
    Abstract: Isobutene, isoprene, and butadiene are obtained from mixtures of C4 and/or C5 olefins by dehydrogenation. The C4 and/or C5 olefins can be obtained by dehydration of C4 and C5 alcohols, for example, renewable C4 and C5 alcohols prepared from biomass by thermochemical or fermentation processes. Isoprene or butadiene can be polymerized to form polymers such as polyisoprene, polybutadiene, synthetic rubbers such as butyl rubber, etc. in addition, butadiene can be converted to monomers such as methyl methacrylate, adipic acid, adiponitrile, 1,4-butadiene, etc. which can then be polymerized to form nylons, polyesters, polymethylmethacrylate etc.
    Type: Application
    Filed: February 24, 2010
    Publication date: August 26, 2010
    Inventors: Matthew W. Peters, Joshua D. Taylor, Leo E. Manzer, David E. Henton
  • Publication number: 20090299109
    Abstract: The present invention is directed to renewable compositions derived from fermentation of biomass, and integrated methods of preparing such compositions.
    Type: Application
    Filed: December 3, 2008
    Publication date: December 3, 2009
    Inventors: Patrick R. Gruber, Matthew W. Peters, Josefa M. Griffith, Yassin Al Obaidi, Leo E. Manzer, Joshua D. Taylor
  • Publication number: 20090151251
    Abstract: The present invention features methods and apparatus for the pyrolysis or torrefaction of a carbon-containing feedstock before it is converted to syngas. In some embodiments, biomass is first pretreated by torrefaction and/or pyrolysis, followed by devolatilization and/or steam reforming to produce syngas. Various mixtures of such pretreated biomass, combined with fresh biomass, can be employed to produce syngas. The syngas can be converted to alcohols, such as ethanol, or to other products.
    Type: Application
    Filed: November 13, 2008
    Publication date: June 18, 2009
    Applicant: Range Fuels, Inc.
    Inventors: Leo E. MANZER, William B. Schafer
  • Publication number: 20090151253
    Abstract: The present invention features methods and apparatus for the pyrolysis or torrefaction of a carbon-containing feedstock before it is converted to syngas. In some embodiments, biomass is first pretreated by torrefaction and/or pyrolysis, followed by devolatilization and/or steam reforming to produce syngas. Various mixtures of such pretreated biomass, combined with fresh biomass, can be employed to produce syngas. The syngas can be converted to alcohols, such as ethanol, or to other products.
    Type: Application
    Filed: November 13, 2008
    Publication date: June 18, 2009
    Applicant: Range Fuels, Inc.
    Inventors: Leo E. MANZER, William B. SCHAFER, III
  • Patent number: 7314942
    Abstract: Alpha-methylenelactone is produced from butyrolactone and valerolactone by the addition of formaldehyde in a supercritical fluid.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: January 1, 2008
    Assignee: E. I. duPont de Nemours & Co.
    Inventors: Keith W. Hutchenson, Leo E. Manzer
  • Patent number: 7074968
    Abstract: The invention is a continuous process for the preparation of polytrimethylene ether glycol from 1,3-propanediol reactant. In addition, the invention is directed to a continuous multi-stage process comprising reacting at least one reactant in a liquid phase in an up-flow column reactor, and forming a gas or vapor phase by-product wherein the gas or vapor phase by-product is continuously removed at the top and at least one intermediate stage.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: July 11, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hari Babu Sunkara, Ernest Keith Andrew Marchildon, Howard Chung-Ho Ng, Leo E. Manzer
  • Patent number: 7071371
    Abstract: A gel composition substantially contained within the pores of a solid material is disclosed for use as a catalyst or as a catalyst support in dehydrogenation and dehydrocyclization processes.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: July 4, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Kostantinos Kourtakis, Leo E. Manzer
  • Patent number: 7067708
    Abstract: The present invention relates to a process for the preparation of para-xylene from trimethylpentane.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: June 27, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Leo E. Manzer, Kostantinos Kourtakis, Norman Herron, Eugene M. McCarron, Paul D. VerNooy
  • Patent number: 6977291
    Abstract: A process for the manufacture of polytrimethylene ether glycol comprising the steps of: (a) providing (1) 1,3-propanediol reactant selected from the group consisting of 1,3-propanediol and/or oligomers or prepolymers of 1,3-propanediol having a degree of polymerization of 2-9 and mixtures thereof, and (2) a polycondensation catalyst; and (b) polycondensing the 1,3-propanediol reactant to form a polytrimethylene ether glycol at less than one atmosphere pressure, and the product of the process. In addition, polytrimethylene ether glycol has a number average molecular weight greater than 1,500, an APHA color of less than 120, an unsaturation of less than 20 meq/kg, and a content of cyclic ether oligomers of less than 2%.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: December 20, 2005
    Assignee: E.I. Du Pont de Nemours and Company
    Inventors: Hari B. Sunkara, Leo E. Manzer
  • Patent number: 6797850
    Abstract: A chromium catalyst is disclosed for use in dehydrogenation and dehydrocyclization processes.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: September 28, 2004
    Assignee: Invista North America S.a.r.l.
    Inventors: Kostantinos Kourtakis, Leo E. Manzer
  • Publication number: 20040152925
    Abstract: The invention is a continuous process for the preparation of polytrimethylene ether glycol from 1,3-propanediol reactant. In addition, the invention is directed to a continuous multi-stage process comprising reacting at least one reactant in a liquid phase in an upflow column reactor, and forming a gas or vapor phase by-product wherein the gas or vapor phase by-product is continuously removed at the top and at least one intermediate stage.
    Type: Application
    Filed: January 20, 2004
    Publication date: August 5, 2004
    Applicant: E.I. Du Pont de Nemours and Company
    Inventors: Hari Babu Sunkara, Ernest Keith Andrew Marchildon, Howard Chung-Ho Ng, Leo E. Manzer
  • Patent number: 6759439
    Abstract: A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. In accordance with this invention, the catalyst used in the process preferably includes at least cobalt, rhenium, and a promoter selected from the group including boron, phosphorus, potassium, manganese, and vanadium. The catalyst may also comprise a support material selected from the group including silica, titania, titania/alumina, zirconia, alumina, aluminum fluoride, and fluorided aluminas.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: July 6, 2004
    Assignee: ConocoPhillips Company
    Inventors: Wenchun Chao, Kamel M. Makar, Leo E. Manzer, Munirpallam A. Subramanian
  • Patent number: 6727289
    Abstract: A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. In accordance with this invention, the catalyst used in the process includes at least a Fischer-Tropsch metal and boron. The Fischer-Tropsch metal preferably includes cobalt and optionally ruthenium or platinum. The catalyst may also comprise a support material selected from the group including silica, titania, titania/alumina, zirconia, alumina, aluminum fluoride, and fluorided aluminas.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: April 27, 2004
    Assignee: ConocoPhillips Company
    Inventors: Olga Ionkina, Wenchun Chao, Munirpallam A. Subramanian, Leo E. Manzer, Kamel M. Makar, Ajoy P. Raje
  • Patent number: 6720459
    Abstract: The invention is a continuous process for the preparation of polytrimethylene ether glycol from 1,3-propanediol reactant. In addition, the invention is directed to a continuous multi-stage process comprising reacting at least one reactant in a liquid phase in an up-flow column reactor, and forming a gas or vapor phase by-product wherein the gas or vapor phase by-product is continuously removed at the top and at least one intermediate stage.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: April 13, 2004
    Assignee: E. I. du Pont Nemours and Company
    Inventors: Hari B. Sunkara, Ernest Keith Andrew Marchildon, Howard Chung-Ho Ng, Leo E. Manzer
  • Patent number: 6696388
    Abstract: A gel composition substantially contained within the pores of a solid material for use as a catalyst or as a catalyst support in dehydrogenation and dehydrocyclization processes.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: February 24, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Kostantinos Kourtakis, Leo E. Manzer