By Oxidation Patents (Class 568/915)
  • Patent number: 11560346
    Abstract: A method for producing isopropyl alcohol is provided in which propylene is hydrated directly with water to produce isopropyl alcohol, the method including: a distillation step in which crude isopropyl alcohol is distilled; and a filtration step in which the isopropyl alcohol obtained in the distillation step is filtered through a filter having an ion-exchange group.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: January 24, 2023
    Assignee: TOKUYAMA CORPORATION
    Inventors: Akira Sera, Masashi Shinagawa, Masanari Ishizuki
  • Patent number: 8759593
    Abstract: A method of reclaiming alcohols from purification residue includes hydrolyzing a purification residue with an aqueous medium in the presence of (i) an acid and (ii) an oxidizing agent.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: June 24, 2014
    Assignee: Oxea Bishop LLC
    Inventors: Kenneth A. Windhorst, Oakley T. Cortez, Donald K. Raff
  • Publication number: 20090216051
    Abstract: An apparatus and method for drying ethanol includes a first reaction chamber for carrying out the removal of water from wet ethanol, a feed inlet for introducing the wet ethanol into the reaction chamber, a product outlet for removing dry ethanol from the reaction chamber, an optional fuel inlet for introducing a fuel into the reaction chamber, and a particulate bed, including sorbent particles, that is disposed within the reaction chamber. In a preferred embodiment, the bed is divided into first and second zones each provided with different size sorbent particles. In another preferred embodiment, the bed contains a mixture of sorbent particles and catalyst particles. The sorbent particles operate to remove water from the wet ethanol and form hydrated-sorbent particles. The catalyst particles operate to promote chemical reaction of the fuel, generating heat that causes removal of water from the hydrated-sorbent particles and regenerating the sorbent particles.
    Type: Application
    Filed: February 3, 2009
    Publication date: August 27, 2009
    Inventors: Christopher J. Brown, Vladimir Hlavacek, Marian Simo
  • Patent number: 6770790
    Abstract: The invention is a method to purify tertiary butyl alcohol by contact with at least two solid adsorbents comprising aluminum oxide and a large pore zeolite such as zeolite X. The purification method successfully improves product quality and reduces the amount of impurities in the tertiary butyl alcohol.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: August 3, 2004
    Assignee: ARCO Chemical Technology, L.P.
    Inventors: Xiangmin Li, Lawrence M. Candela, Yuan-Zhang Han, Andrew P. Kahn
  • Patent number: 6563006
    Abstract: Catalytic processes have been developed for direct ambient air oxidative conversion of hydrocarbons to aldehydes and unsaturated alcohols. Aliphatic hydrocarbons including methane, hexanes, octanes, decanes, gasoline, diesel fuel, oils, solvents and other organic compounds have been oxidized by this catalytic process. The catalysts are based on molecular strings of di-, tri- and/or poly-groups of transition metal complexes. Laboratory results have demonstrated [iron(II)]2, [manganese(II)]2 and related families of catalysts to be effective for ambient air direct oxidative conversion of hydrocarbons to products in high yields at room temperature and above, while [cobalt(II)]3 was effective for air oxidative conversion of methane to formaldehyde and for other gaseous hydrocarbons to their corresponding aldehydes at elevated temperatures.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: May 13, 2003
    Inventor: Melvin K. Carter
  • Patent number: 6265626
    Abstract: A method and apparatus for continuously reacting a feed gas to form a product and separating the product from unreacted feed gas is provided. The apparatus includes a plurality of compartments and means for connecting the compartments in a series, with the last compartment in the series being connected to the first compartment in the series to provide a closed loop. Each compartment may include an upstream reaction zone and a downstream separation zone.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: July 24, 2001
    Assignee: Regents of the University of Minnesota
    Inventors: Robert W. Carr, Anna Lee Y. Tonkovich
  • Patent number: 6037507
    Abstract: A non-cyclic branched aliphatic hydrocarbon (e.g., isobutane) is oxidized with oxygen in the presence of an oxidation catalyst comprising an imide compound of the following formula (1) (e.g., N-hydroxyphthalimide) or an oxidation catalyst comprising the imide compound and a co-catalyst (e.g., a transition metal compound of selected from Group 3A, 4A, 5A, 6A, 7A, 8 and 1B elements of the Periodic Table of elements), for the formation of an oxide (e.g., t-butanol, acetone): ##STR1## wherein R.sup.1 and R.sup.2 represent a substituent such as a hydrogen atom or a halogen atom, or R.sup.1 and R.sup.2 may together form a double bond or an aromatic or non-aromatic 5- to 12-membered ring, X is O or OH, and n is 1 to 3.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: March 14, 2000
    Assignees: Daicel Chemical Industries, Ltd., Yasutaka Ishii
    Inventors: Tatsuya Nakano, Yasutaka Ishii
  • Patent number: 4523043
    Abstract: Organosulfur compounds containing a C-S bond are decomposed by reaction with a reagent made from an alkali metal, a polyglycol or a monoalkyl ether thereof and oxygen, which effects decomposition by cleavage of the C-S bond.
    Type: Grant
    Filed: January 18, 1984
    Date of Patent: June 11, 1985
    Assignee: The Franklin Institute
    Inventors: Louis L. Pytlewski, Kenneth Krevitz, Arthur B. Smith
  • Patent number: 4089886
    Abstract: Impure methanol may be treated to remove iron pentacarbonyl impurities by adding a source of hypochlorite ions to the impure methanol whereby the iron of the iron pentacarbonyl will be oxidized to the ferrous or ferric state. The impure methanol is then subjected to distillation to remove iron compounds as heavy ends.
    Type: Grant
    Filed: July 21, 1977
    Date of Patent: May 16, 1978
    Assignee: Celanese Corporation
    Inventors: Anthony J. Branecky, David W. Harris