Patents by Inventor Jack K. Nyquist

Jack K. Nyquist 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).

  • Integrated chemical processing apparatus and processes for the preparation thereof
    Patent number: 5534328
    Abstract: An integral structure is provided for chemical processing and manufacture, in which a plurality of laminae are joined together and having inlet and outlet ports connected by a three dimensionally tortuous channel. Chemicals are introduced through the inlet ports and processed along the channel, with desirable product withdrawn through the outlet ports. The laminae are of materials selected to be compatible with the chemical process, from the group consisting of elements of groups III, IV or V of the Periodic Table, ceramics, glasses, polymers, composites and metals. Processes of manufacture of the apparatus and processes utilizing the apparatus are also disclosed herein.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: July 9, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: James W. Ashmead, Charles T. Blaisdell, Melvin H. Johnson, Jack K. Nyquist, Joseph A. Perrotto, James F. Ryley, Jr.
  • Landfillable composition from iron chloride waste treatment in molten salt
    Patent number: 4655839
    Abstract: A solid, water impervious landfillable composition of a process for treating iron chloride wastes such as those obtained when chlorinating titanium ore is disclosed. The process involves reacting the iron chlorides with limestone in molten CaCl.sub.2.xH.sub.2 O, where x equals 3-6. The composition comprises CaCl.sub.2.xH.sub.2 O where x is from 3-6 and FeO.sub.Y where Y is from 1.0-1.5 and the weight ratio of CaCl.sub.2.xH.sub.2 O (calculated as CaCl.sub.2.2H.sub.2 O)/FeO.sub.Y is from 1/9-4/1.
    Type: Grant
    Filed: January 17, 1985
    Date of Patent: April 7, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Tze Chao, Jack K. Nyquist
  • Iron chloride waste treatment in molten salt
    Patent number: 4532113
    Abstract: A process for treating iron chloride wastes such as those obtained when chlorinating titanium ore is disclosed. The process involves reacting the iron chlorides with limestone in molten CaCl.sub.2.xH.sub.2 O, where x equals 3-6 and separating the resulting iron oxide from the molten CaCl.sub.2.xH.sub.2 O.
    Type: Grant
    Filed: September 6, 1983
    Date of Patent: July 30, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Tze Chao, Jack K. Nyquist
  • Production of high-purity chlorine from hydrogen chloride
    Patent number: 3950501
    Abstract: An improvement in the continuous process for oxidizing hydrogen chloride to chlorine with an aqueous mixture of nitric and sulfuric acids, which acids are subsequently regenerated, the improvement concerned primarily with maintaining critical water control of from 23.0 to 27.5 percent, by weight, during the oxidation reaction to form the chlorine and from 27.5 to 30.0 percent during the reaction wherein the nitric and sulfuric acids are regenerated; and with maintaining the mol ratio of HCl to HNO.sub.3 at about 2 to 1 during the oxidation reaction to form the chlorine.
    Type: Grant
    Filed: February 13, 1974
    Date of Patent: April 13, 1976
    Inventors: Luther C. Chien, Jack K. Nyquist, Charles Yembrick, Jr.