Patents by Inventor John R. Whyte, Jr.

John R. Whyte, Jr. 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: 5223022
    Abstract: A novel ion-exchange agent, an aluminum-enriched analogue to the zeolite chabazite, hereinafter "Al-Chab" is disclosed. The Al-Chab is used in processes for recovering precious metals from aqueous solutions or for removing toxic heavy metals from contaminated aqueous streams.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: June 29, 1993
    Assignee: Engelhard Corporation
    Inventors: Steven M. Kuznicki, John R. Whyte, Jr.
  • Patent number: 5071804
    Abstract: A novel ion-exchange agent, an aluminum-enriched analogue to the zeolite chabazite, hereinafter "Al-Chab" is disclosed. The Al-Chab is used in processes for recovering precious metals from aqueous solutions or for removing toxic heavy metals from contaminated aqueous streams.
    Type: Grant
    Filed: September 8, 1988
    Date of Patent: December 10, 1991
    Assignee: Engelhard Corporation
    Inventors: Steven M. Kuznicki, John R. Whyte, Jr.
  • Patent number: 5011667
    Abstract: A process for making self-bound monolithic bodies of chabazite by mixing finely divided chabazite and a sodium aluminosilicate gel into monolithic bodies, the gel having a molar ratio of silica to aluminum between 1.0 and 1.5 and a molar ratio of sodium to silica from 0.35 to 0.55, and heating the monolithic bodies in the presence of water to convert the gel to additional chabazite.
    Type: Grant
    Filed: September 8, 1988
    Date of Patent: April 30, 1991
    Assignee: Engelhard Corporation
    Inventors: Steven M. Kuznicki, John R. Whyte, Jr.
  • Patent number: 4510254
    Abstract: A method of treating zeolites to remove therefrom discoloring impurities and improve the brightness thereof, comprising the steps of mixing a pulverized sedimentary zeolite ore with a dispersant and water to form a dispersed aqueous zeolite slurry, degritting the resulting slurry, removing fines containing discoloring impurities from the degritted slurry, thereafter subjecting the zeolite slurry to a fine media milling, removing fines containing discoloring impurities from the resulting fine milled slurry, subjecting the fine milled slurry to magnetic separation to remove magnetic discoloring impurities, bleaching the resulting zeolite slurry and then recovering the zeolite in dry form from the resulting slurry. The dry finely ground zeolite made by this method has a particle size of at least 85% below 2 .mu.m and a Tappi brightness of at least 90.
    Type: Grant
    Filed: January 23, 1984
    Date of Patent: April 9, 1985
    Inventors: Horton H. Morris, John R. Whyte, Jr., Ellen Forbus, Catherine M. Dentan, David R. Collins