Patents by Inventor Buford T. Pennington

Buford T. Pennington 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).

  • Two-stage dinitrotoluene production process
    Patent number: 5948944
    Abstract: A multi-step process for producing DNT employing a mononitration step in a single liquid phase at an elevated temperature using a carefully controlled amount of water, followed by a phase separation step prior to dinitration of the MNT present in the resulting organic phase. This process results in a DNT product with a desired isomer ratio of 2,4-DNT to 2,6-DNT and provide relatively fast nitration rates with less by-products.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: September 7, 1999
    Assignee: Arco Chemical Technology, L.P.
    Inventors: Chunjie Zhang, Buford T. Pennington, Jeffrey W. Baird, Allen B. Quakenbush, Stephen L. Goldstein, Donald L. Lickei, Peter J. Whitman
  • Process for reducing tetranitromethane in compositions containing nitroaromatic compounds
    Patent number: 5847240
    Abstract: A process is disclosed for removing a light organic compound from a liquid composition comprising said light organic compound in admixture with a nitroaromatic compound, said light organic compound having a partial vapor pressure in said composition that is greater than the partial vapor pressure of said nitroaromatic compound in said composition, said process comprising contacting said composition with steam or a gas to cause at least a portion of said light organic compound to pass out of said composition and into admixture with said steam or gas.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: December 8, 1998
    Assignee: Arco Chemical Technology, L.P.
    Inventors: Allen B. Quakenbush, Buford T. Pennington
  • Non-catalytic oxidation of alkylene to alkylene oxide in the presence of recycled aldehyde by-products
    Patent number: 5241088
    Abstract: A non-catalytic, gas-phase oxidation process for the production of an alkylene oxide or mixture of alkylene oxides in the presence of an aldehyde which may be an aldehyde produced in the oxidation process. Preferably, a gaseous mixture of propylene, oxygen and acetaldehyde is reacted at a temperature in the range of from about 200 to about 350.degree. C. and at a superatmospheric pressure up to about 1000 psig.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: August 31, 1993
    Assignee: Olin Corporation
    Inventors: James L. Meyer, Buford T. Pennington, Michael C. Fullington
  • Process for the direct oxidation of propylene to propylene oxide
    Patent number: 5142070
    Abstract: Described herein is a process for the direct oxidation of propylene to propylene oxide in conditions such that propylene is above its critical temperature and pressure.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: August 25, 1992
    Assignee: Olin Corporation
    Inventors: Michael C. Fullington, Buford T. Pennington