Patents by Inventor David J. Schreck

David J. Schreck 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).

  • Patent number: 8236975
    Abstract: A process for converting a crude glycerol, crude mixtures of naturally derived multihydroxylated-aliphatic hydrocarbons or esters thereof to a chlorohydrin, by contacting the crude glycerol, crude mixtures of naturally derived multihydroxylated-aliphatic hydrocarbons or esters thereof starting material with a source of a superatmospheric partial pressure of hydrogen chloride for a sufficient time and at a sufficient temperature, and wherein such contracting step is carried out without substantial removal of water, to produce the desired chlorohydrin product; wherein the desired product or products can be made in high yield without substantial formation of undesired overchlorinated byproducts; wherein said crude glycerol, said ester of crude glycerol, or mixture thereof is derived from a renewable raw material. Chlorohydrins made by the process of the present invention are useful in preparing epoxides such as epichlorohydrins.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: August 7, 2012
    Inventors: Bruce D. Hook, John Briggs, Robert M. Campbell, William J. Kruper, David J. Schreck, Richard D. Varjian, Jeffrey G. Hippler
  • Patent number: 8088957
    Abstract: The present invention relates to a process for converting a multihydroxylated-aliphatic hydrocarbon or ester thereof to a chlorohydrin, by contacting the multihydroxylated-aliphatic hydrocarbon or ester thereof starting material with a source of a superatmospheric partial pressure of hydrogen chloride for a sufficient time and at a sufficient temperature, and wherein such contracting step is carried out without substantial removal of water, to produce the desired chlorohydrin product; wherein the desired product or products can be made in high yield without substantial formation of undesired overchlorinated byproducts. In addition, certain catalysts of the present invention may be used in the present process at superatmospheric, atmospheric and subatmospheric pressure conditions with improved results.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: January 3, 2012
    Inventors: William J. Kruper, Jr., David J. Schreck, Kenneth L. Kearns, Richard D. Varjian, Mark E. Jones, Robert M. Campbell, Bruce D. Hook, John R. Briggs, Jeffrey G. Hippler
  • Publication number: 20110178315
    Abstract: A process for converting a crude glycerol, crude mixtures of naturally derived multihydroxylated-aliphatic hydrocarbons or esters thereof to a chlorohydrin, by contacting the crude glycerol, crude mixtures of naturally derived multihydroxylated-aliphatic hydrocarbons or esters thereof starting material with a source of a superatmospheric partial pressure of hydrogen chloride for a sufficient time and at a sufficient temperature, and wherein such contracting step is carried out without substantial removal of water, to produce the desired chlorohydrin product; wherein the desired product or products can be made in high yield without substantial formation of undesired overchlorinated byproducts; wherein said crude glycerol, said ester of crude glycerol, or mixture thereof is derived from a renewable raw material. Chlorohydrins made by the process of the present invention are useful in preparing epoxides such as epichlorohydrins.
    Type: Application
    Filed: February 9, 2011
    Publication date: July 21, 2011
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Bruce D. Hook, John Briggs, Robert M. Campbell, William J. Kruper, JR., David J. Schreck, Richard D. Varjian, Jeffrey G. Hippler
  • Patent number: 7910781
    Abstract: A process for converting a crude glycerol, crude mixtures of naturally derived multihydroxylated-aliphatic hydrocarbons or esters thereof to a chlorohydrin, by contacting the crude glycerol, crude mixtures of naturally derived multihydroxylated-aliphatic hydrocarbons or esters thereof starting material with a source of a superatmospheric partial pressure of hydrogen chloride for a sufficient time and at a sufficient temperature, and wherein such contracting step is carried out without substantial removal of water, to produce the desired chlorohydrin product; wherein the desired product or products can be made in high yield without substantial formation of undesired overchlorinated byproducts; wherein said crude glycerol, said ester of crude glycerol, or mixture thereof is derived from a renewable raw material. Chlorohydrins made by the process of the present invention are useful in preparing epoxides such as epichlorohydrins.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: March 22, 2011
    Inventors: Bruce D. Hook, John Briggs, Robert M. Campbell, William J. Kruper, Jr., David J. Schreck, Richard D. Varjian, Jeffrey G. Hippler
  • Publication number: 20100126060
    Abstract: Waste water emissions from a biodiesel production facility are substantially reduced by recovering water from a spent water stream used in a water washing step in the refining of crude biodiesel which water washing removes glycerin. The water is recovered from the spent water stream is concentrated to provide an aqueous fraction which can be recycled for the water washing. The concentration also provides a glycerin-containing fraction containing that can be blended with crude glycerin by-product generated by transesterification of glycerides to make the biodiesel.
    Type: Application
    Filed: January 23, 2008
    Publication date: May 27, 2010
    Applicant: BEST ENERGIES, INC.
    Inventors: Thomas A. Maliszewski, Donald L. Bunning, David J. Schreck, Louis A. Kapicak, Norman L. Balmer
  • Patent number: 5281751
    Abstract: A process for the production of an aliphatic carboxylic acid of the formula RCOOH, wherein R is an alkyl group having from 1 to 5 carbon atoms, comprises the catalytic reaction of an alcohol of formula ROH and carbon monoxide in the presence of a rhodium catalyst, methyl iodide, a high lithium iodide content, a low water content and an organic ester of formula RCO.sub.2 R. The process can optionally be carried out in the presence of hydrogen and/or an organic ligand of formula ER.sup.11.sub.3 where E is nitrogen, phosphorus, arsenic, antimony or bismuth and R.sup.11 is an organic moiety.
    Type: Grant
    Filed: December 29, 1992
    Date of Patent: January 25, 1994
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventor: David J. Schreck
  • Patent number: 5231230
    Abstract: This invention relates to a process for making amines having a high yield weight percent of diethylenetriamine (DETA) by condensing an amino compound in the presence of a condensation catalyst selected from a Group IVB metal oxide, a metallic phosphate having a cyclic structure or an acyclic structure which is transformed into a cyclic structure during the process, a metallic polyphosphate having a condensed structure, a Group VIB metal-containing substance and a promoted condensation catalyst. This invention also relates to an alkyleneamines producers composition rich in DETA.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: July 27, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Lloyd M. Burgess, Arthur R. Doumaux, Jr., Stephen W. King, David J. Schreck
  • Patent number: 5225600
    Abstract: This invention relates to a process for making amines by condensing an amino compound in the presence of a Group VIB metal-containing condensation catalyst. This invention also relates to an alkyleneamines producers composition rich in triethylenetetramine (TETA), tetraethylenepentamine (TEPA) and pentaethylenehexamine (PEHA).
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: July 6, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Stephen W. King, Arthur R. Doumaux, Jr., David J. Schreck
  • Patent number: 5220071
    Abstract: This invention relates to a process for making amines having a high yield weight percent of pentaethylenehexamine (PEHA) and hydroxyethyltriethylenetetramine (HETETA) by condensing an amino compound in the presence of a condensation catalyst selected from a Group IVB metal oxide, a Group VIB metal-containing substance and a promoted condensation catalyst. This invention also relates to an alkyleneamines producers composition rich in PEHA and HETETA.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: June 15, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Lloyd M. Burgess, Arthur R. Doumaux, Jr., Stephen W. King, David J. Schreck
  • Patent number: 5210306
    Abstract: This invention relates to a process for making amines by condensing an amino compound in the presence of a condensation catalyst and a condensation catalyst promoter, wherein said condensation catalyst promoter is present in an amount sufficient to promote the condensation catalyst. This invention also relates to an alkyleneamines producers composition rich in triethylenetetramine (TETA), tetraethylenepentamine (TEPA) and pentaethylenehexamine (PEHA).
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: May 11, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Arthur R. Doumaux, Jr., David J. Schreck, Stephen W. King, George A. Skoler
  • Patent number: 5202477
    Abstract: A process for the production of an aliphatic carboxylic acid of the formula RCOOH, wherein R is an alkyl group having from 1 to 5 carbon atoms, comprises the catalytic reaction of an alcohol of formula ROH and carbon monoxide in the presence of a rhodium catalyst, methyl iodide, a high lithium iodide content, a low water content and an organic ester of formula RCO.sub.2 R. The process can optionally be carried out in the presence of hydrogen and/or an organic ligand of formula ER.sup.11.sub.3 where E is nirogen, phosphorus, arsenic, antimony or bismuth and R.sup.11 is an organic moiety.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: April 13, 1993
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventor: David J. Schreck
  • Patent number: 5202491
    Abstract: A continuously generated alkyleneamines producers composition comprising, based on 100% of the moles of the composition and exclusive of any MEA and water present,a) about 20 to about 40 mole % DETA,b) about 15 to about 60 mole % EDA (net generated),c) about 5 to about 18 mole % AEEA,d) about 3 to about 25 mole % of the combination of PIP, AEP and HEP,e) less than about 1 to about 5 mole % of one or more of TETAs and TEPAs,f) less than about 1 mole % of other polyalkylene polyamines,g) a DETA to AEEA mole ratio greater than about 1.35, andh) an EDA to DETA mole ratio less than 2.60,and the process of manufacturing it which comprises feeding hydrogen, ammonia, MEA and EDA, preferably provided from a recycle stream, to a reaction zone containing a fixed bed of a reductive amination catalyst in a tubular reactor, wherein the hydrogen comprises about 1 to about 30 mole percent of the feed in the reaction zone, the mole ratio of EDA to MEA is greater than 0.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: April 13, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Lloyd M. Burgess, Charles A. Gibson, David J. Schreck
  • Patent number: 5202492
    Abstract: This invention relates to a process for making amines by condensing an amino compound in the presence of a metallic phosphate condensation catalyst having a cyclic structure or an acyclic structure which is transformed into a cyclic structure during said process. This invention also relates to an alkyleneamines producers composition rich in triethylenetetramine (TETA), tetraethylenepentamine (TEPA) and pentaethylenehexamine (PEHA).
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: April 13, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Arthur R. Doumaux, Jr., David J. Schreck
  • Patent number: 5202490
    Abstract: A continuously generated alkyleneamines producers composition comprising based on 100% of the moles of the compostion and exclusive of any MEA and water present,a) about 15 to about 35 mole % DETA,b) about 15 to about 55 mole % EDA (net generated),c) about 10 to about 35 mole % AEEA,d) about 3 to about 25 mole % of the combination of PIP, AEP and HEP,e) about 3 to about 10 mole % of one or more of TETAs and TEPAs,f) less than about 1 mole % of other polyalkylene polyamines, andg) a DETA to AEEA mole ratio greater than about 0.77 to less than 1.35,and the process of producing the same, which comprises feeding hydrogen, ammonia, MEA and EDA, preferably provided from a recycle stream, to a reaction zone containing a fixed bed of a reductive amination catalyst in a tubular reactor, wherein the hydrogen comprises about 10 to about 50 mole percent of the feed in the reaction zone, the mole ratio of EDA to MEA is less than about 0.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: April 13, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Lloyd M. Burgess, Charles A. Gibson, David J. Schreck
  • Patent number: 5202489
    Abstract: Process of making amines by inter alia the (i) intramolecular condensation of an amino compound to an amine having a lower molecular weight or (ii) the intermolecular condensation of an amino compound with one or more of another amino compound or a compound containing an alcoholic hydroxyl group using a Group IVB metal oxide condensation catalyst. The preferred process involves the manufacture of alkyleneamines, most desirably polyalkylenepolyamines, by such condensation reactions utilizing catalysts containing titanium oxide, zirconium oxide or mixtures of them.
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: April 13, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Arthur R. Doumaux, Jr., David J. Schreck, George A. Skoler, Stephen W. King
  • Patent number: 5196588
    Abstract: A continuously generated alkyleneamines producers composition comprising, based on 100% of the moles of the composition and exclusive of any MEA and water present,a) about 14 to about 20 mole % DETA,b) about 45 to about 75 mole % EDA (net generated),c) about 4 to about 10 mole % AEEA,d) about 3 to about 25 mole % of the combination of PIP, AEP and HEP,e) about 0.5 to about 5 mole % of one or more of TETAs and TEPAs,f) less than about 1 mole % of other polyalkylene polymines,g) an EDA to DETA mole ratio greater than about 2.60,h) a DETA to AEEA mole ratio greater than about 1.35, andi) an EDA to AEEA mole ratio greater than about 8,and a process of manufacturing it which comprises feeding hydrogen, ammonia, MEA and EDA, preferably provided from a recycle stream, to a reaction zone containing a fixed bed of a reductive amination catalyst in a tubular reactor, wherein the hydrogen comprises about 1 to about 30 mole percent of the feed in the reaction zone, the mole ratio of EDA to MEA is less than about 0.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: March 23, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Lloyd M. Burgess, Charles A. Gibson, David J. Schreck
  • Patent number: 5101074
    Abstract: This invention relates to vicinal di(hetero)alkylene organometalate compounds comprising one or more metal oxides in association with an alkanolamine, an alkyleneamine, an alkylene glycol or mixtures thereof. This invention also relates to an alkyleneamines producers composition rich in triethylenetetramine (TETA), tetraethylenepentamine (TEPA) and pentaethylenehexamine (PEHA), and to processes for the preparation thereof using the vicinal di(hetero)alkylene organometalates.
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: March 31, 1992
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Stephen W. King, Arthur R. Doumaux, Jr., David J. Schreck, George A. Skoler
  • Patent number: 5026907
    Abstract: A process for the production of organic carboxylic acids and organic carboxylic acid anhydrides by the catalytic reaction of an alcohol of the formula ROH and carbon monoxide in contact with an organic ester source and a homogeneous catalyst system of rhodium metal atom, a phosphorus containing ligand in which there is present at least one oxo (.dbd.
    Type: Grant
    Filed: November 6, 1985
    Date of Patent: June 25, 1991
    Assignee: Union Carbide Chemicals and Plastics Technology Corporation
    Inventors: Richard W. Wegman, David J. Schreck
  • Patent number: 4983736
    Abstract: This invention relates to a process for making amines by condensing an amino compound in the presence of a metallic polyphosphate condensation catalyst having a condensed structure. This invention also relates to an alkyleneamines producers composition rich in triethylenetetramine (TETA), tetraethylenepentamine (TEPA) and pentatethylenehexamine (PEHA).
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: January 8, 1991
    Assignee: Union Carbide Chemicals and Plastic Company Inc.
    Inventors: Arthur R. Doumaux, Jr., David J. Schreck
  • Patent number: 4902777
    Abstract: N-(polyoxyalkyl)-N-(alkyl)amines are provided that are reactive with isocyanates to form polyurea and/or polyurethane urea polymers.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: February 20, 1990
    Assignee: Union Carbide Chemicals and Plastics Company, Inc.
    Inventors: Richard M. Gerkin, David J. Schreck, Danny E. Smith