By Electrolytic Oxidation Only Patents (Class 205/449)
  • Patent number: 8889920
    Abstract: The present invention relates to a process for preparing 4-isopropylcyclohexylmethanol (IPCHM) from para-cymene. The process for preparing 4-isopropylcyclohexylmethanol (IPCHM) comprises an electrochemical process for preparing a mixture of 4-isopropylbenzaldehyde dimethyl acetal and 4-(1-alkoxy-1-methylethyl)benzaldehyde dimethyl acetal, and intermediates passed through in the process, a hydrolysis step to form the corresponding benzaldehydes and a hydrogenation of this mixture to form 4-isopropylcyclohexylmethanol (IPCHM).
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: November 18, 2014
    Assignee: BASF SE
    Inventors: Florian Stecker, Ulrich Griesbach, Martin Bock, Lucia Königsmann
  • Patent number: 8821710
    Abstract: Hydrocarbons may be formed from six carbon sugars. This process involves obtaining a quantity of a hexose sugar. The hexose sugar may be derived from biomass. The hexose sugar is reacted to form an alkali metal levulinate, an alkali metal valerate, an alkali metal 5-hydroxy pentanoate, or an alkali metal 5-alkoxy pentanoate. An anolyte is then prepared for use in a electrolytic cell. The anolyte contains the alkali metal levulinate, the alkali metal valerate, the alkali metal 5-hydroxy pentanoate, or the alkali metal 5-alkoxy pentanoate. The anolyte is then decarboxylated. This decarboxylating operates to decarboxylate the alkali metal levulinate, the alkali metal valerate, the alkali metal 5-hydroxy pentanoate, or the alkali metal 5-alkoxy pentanoate to form radicals, wherein the radicals react to form a hydrocarbon fuel compound.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: September 2, 2014
    Assignee: Ceramatec, Inc.
    Inventors: Sai Bhavaraju, Mukund Karanjikar
  • Patent number: 8808781
    Abstract: The present invention relates to a method for producing vanillin, which comprises an electrochemical oxidation of an aqueous, lignin-comprising suspension or solution at an anode, wherein the anode used is a silver electrode.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: August 19, 2014
    Assignees: BASF SE, Rheinische Friedrich-Wilhelms-Universitaet Bonn
    Inventors: Florian Stecker, Itamar Michael Malkowsky, Andreas Fischer, Siegfried R. Waldvogel, Carolin Regenbrecht
  • Publication number: 20140124380
    Abstract: A method for producing organic liquid fuels and other valuable products in which an organic compound is provided to an anode electrode having a metal oxide catalyst disposed on an anode side of an electrolyte membrane, thereby producing an organic liquid fuel and/or other valuable organic product and electrons on the anode side. The electrons are conducted to a cathode electrode disposed on a cathode side of the electrolyte membrane, thereby transforming water provided to the cathode side to H2 gas and hydroxide ions. The method is carried out at a temperature less than or equal to about 160° C., preferably at room temperature.
    Type: Application
    Filed: December 19, 2012
    Publication date: May 8, 2014
    Inventor: Qinbai Fan
  • Publication number: 20140034509
    Abstract: Methods and systems for heterocycle catalyzed carbonylation and hydroformylation with carbon dioxide are disclosed. A method may include, but is not limited to, steps (A) to (D). Step (A) may introduce water to a first compartment of an electrochemical cell. The first compartment may include an anode. Step (B) may introduce carbon dioxide to a second compartment of the electrochemical cell. The second compartment may include a solution of an electrolyte, a heterocyclic catalyst, and a cathode. Step (C) may introduce a second reactant to the second compartment of the electrochemical cell. Step (D) may apply an electrical potential between the anode and the cathode in the electrochemical cell sufficient to induce liquid phase carbonylation or hydroformylation to form a product mixture.
    Type: Application
    Filed: September 19, 2013
    Publication date: February 6, 2014
    Applicant: Liquid Light, Inc.
    Inventors: Narayanappa Sivasankar, Emily Barton Cole, Kyle Teamey
  • Publication number: 20140034506
    Abstract: Methods and systems for electrochemically generating an oxidation product and a reduction product may include one or more operations including, but not limited to: receiving a feed of at least one organic compound into an anolyte region of an electrochemical cell including an anode; at least partially oxidizing the at least one organic compound at the anode to generate at least carbon dioxide; receiving a feed including carbon dioxide into a catholyte region of the electrochemical cell including a cathode; and at least partially reducing carbon dioxide to generate a reduction product at the cathode.
    Type: Application
    Filed: September 25, 2013
    Publication date: February 6, 2014
    Applicant: Liquid Light, Inc.
    Inventors: Kyle Teamey, Jerry J. Kaczur, Narayanappa Sivasankar, Paul Majsztrik, Emily Barton Cole, Andrew B. Bocarsly
  • Publication number: 20130334058
    Abstract: This invention refers to a process of anodic substitution comprising the electrolyzing the liquid reaction medium in an electrochemical cell comprising a cathode and an anode, whereas the liquid reaction medium comprises an organic compound with at least one carbon bound hydrogen atom, a nucleophilic agent, and an ionic liquid in a proportion of at least 10% by weight, and whereas the said hydrogen atoms are replaced at least partially with the nucleophilic group of said nucleophilic agent. Preferably, a gas diffusion layer electrode is used as anode.
    Type: Application
    Filed: June 13, 2013
    Publication date: December 19, 2013
    Inventors: Nicola Christiane AUST, Itamar Michael MALKOWSKY
  • Publication number: 20130140187
    Abstract: The present disclosure is a system and method for producing a first product from a first region of an electrochemical cell having a cathode and a second product from a second region of the electrochemical cell having an anode. The method may include the step of contacting the first region of the electrochemical cell with a catholyte comprising an alcohol and carbon dioxide. Another step of the method may include contacting the second region of the electrochemical cell with an anolyte comprising the alcohol. Further, the method may include a step of applying an electrical potential between the anode and the cathode sufficient to produce a first product recoverable from the first region and a second product recoverable from the second region.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 6, 2013
    Applicant: LIQUID LIGHT, INC.
    Inventor: LIQUID LIGHT, INC.
  • Publication number: 20130040031
    Abstract: The present invention relates to a method for producing vanillin, which comprises an electrochemical oxidation of an aqueous, lignin-comprising suspension or solution at an anode, wherein the anode used is a silver electrode.
    Type: Application
    Filed: August 8, 2012
    Publication date: February 14, 2013
    Applicants: Rheinische Friedrich-Wilhelms-Universitaet Bonn, BASF SE
    Inventors: Florian STECKER, Itamar Michael MALKOWSKY, Andreas FISCHER, Siegfried R. WALDVOGEL, Carolin REGENBRECHT
  • Publication number: 20110207968
    Abstract: The present invention relates to a process for preparing 4-isopropylcyclohexylmethanol (IPCHM) from para-cymene. The process for preparing 4-isopropylcyclohexylmethanol (IPCHM) comprises an electrochemical process for preparing a mixture of 4-isopropylbenzaldehyde dimethyl acetal and 4-(1-alkoxy-1-methylethyl)benzaldehyde dimethyl acetal, and intermediates passed through in the process, a hydrolysis step to form the corresponding benzaldehydes and a hydrogenation of this mixture to form 4-isopropylcyclohexylmethanol (IPCHM).
    Type: Application
    Filed: February 11, 2011
    Publication date: August 25, 2011
    Applicant: BASF SE
    Inventors: Florian Stecker, Ulrich Griesbach, Martin Bock, Lucia Königsmann
  • Patent number: 7972492
    Abstract: Disclosed is a process for the electrochemical transformation of a compound to form a product, the process comprising (i) effecting the transformation in the presence of an electrolyte comprising at least one room temperature ionic liquid, wherein the ionic liquid is air-stable and moisture-stable, (ii) recovering the product, and optionally (iii) recovering the ionic liquid. The process can be used to effect the electrochemical transformation of a wide range of organic compounds.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: July 5, 2011
    Assignee: The Queen's University of Belfast
    Inventors: William R. Pitner, Kenneth R. Seddon, Kenneth M. Stack, Alan Curzons, Richard Freer
  • Patent number: 6607655
    Abstract: Reactor for carrying out electrochemical reactions with an electrode and a counter-electrode are known, whereby the electrodes are separated form one another by a capillary gap. Such reactors do not comprise a homogeneous flow rate distribution in the capillary gap which can thus lead to a reduction of selectivity and of local temperature increases. In addition, high ohmic resistance requires the use of conducting salts. The aim of the invention is to provide a reactor in which the voltage drop in the electrolyte is minimized and which can be better optimized over a short resistance time distribution. To this end, the capillary gap comprises at least one channel as a reaction chamber having a height less than or equal to 200 &mgr;m. According to the inventive method, the volume flow of the educt current is measured such that the flow of the educt current is laminar over the length of the channel having a height less than or equal to 200 &mgr;m.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: August 19, 2003
    Assignee: Institut fur Mikrotechnik Mainz GmbH
    Inventors: Holger Lowe, Michael Kupper, Athanassios Ziogas
  • Patent number: 5571400
    Abstract: The invention relates to a process for the electrosynthesis of an aldehyde of the formula (I)R.sup.1 --CHO (I)in which R.sup.1 is an aryl or alkyl radical, by electrolysis of an organic halide of the formula (II)R.sup.1 --Hal (II)in which Hal is chlorine or bromineand of an N,N-disubstituted formamide of the formula (III) ##STR1## in which R.sup.2 and R.sup.3 are alkyl or aryl in a cell which is equipped with electrodes and has a chamber, the anode being self-consuming and being composed of a reducing metal, wherein the cathode is composed of lead.
    Type: Grant
    Filed: August 16, 1995
    Date of Patent: November 5, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Thomas Karcher
  • Patent number: 5567299
    Abstract: The present invention provides a process for preparing arylglyoxals which comprise the steps of (a) electrochemically oxidizing an arylketone at a pH of less than about seven and at a temperature of from about -20.degree. C. to about 120.degree. C. in the presence of an electrolyte for a sufficient period of time to form an arylacetal, and (b) subjecting said acetal to hydrolysis for a sufficient period of time and under suitable temperature and pressure conditions to form said arylglyoxal.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: October 22, 1996
    Assignee: Hoechst Celanese Corporation
    Inventors: Ricardo E. Borjas, Carina Araullo-McAdams, Steven R. Alexander, George A. Blay, Yaw-Hwa Liu
  • Patent number: 5500099
    Abstract: The present invention provides a process for preparing arylglyoxals which comprise the steps of (a) electrochemically oxidizing an arylketone at a pH of less than about seven and at a temperature of from about -20.degree. C. to about 120.degree. C. in the presence of an electrolyte for a sufficient period of time to form an arylacetal, and (b) subjecting said acetal to hydrolysis for a sufficient period of time and under suitable temperature and pressure conditions to form said arylglyoxal.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: March 19, 1996
    Assignee: Hoechst Celanese Corporation
    Inventors: Ricardo E. Borjas, Carina Araullo-McAdams, Steven R. Alexander, George A. Blay, Yaw-Hwa Liu