Patents by Inventor William Smolin

William Smolin 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).

  • Zeolite adsorbent for separation of para-xylene
    Patent number: 4615994
    Abstract: Para-xylene may be recovered as raffinate by contacting a C-8 aromatic hydrocarbon mixture, in the presence of toluene desorbent, with a synthetic crystalline lithium aluminosilicate zeolite HP (formed by ion exchange from a sodium aluminosilicate zeolite HP having a lattice constant of 25.02-25.10 .ANG.)--preferably in the presence of a pyridine.
    Type: Grant
    Filed: July 29, 1982
    Date of Patent: October 7, 1986
    Assignee: Texaco Inc.
    Inventors: William Smolin, John H. Estes
  • Adsorbent for separation of para-xylene
    Patent number: 4442222
    Abstract: Para-xylene may be separated as extract product by contacting charge C-8 aromatic hydrocarbon mixture with a synthetic crystalline barium or barium/potassium aluminosilicate zeolite HP, formed by ion exchange from a sodium aluminosilicate zeolite HP having a lattice constant of 25.02-25.10 .ANG. and a ratio of silicon atoms to aluminum atoms of less than 1.0.
    Type: Grant
    Filed: July 6, 1982
    Date of Patent: April 10, 1984
    Assignee: Texaco Inc.
    Inventors: William Smolin, John H. Estes
  • Zeolite adsorbent for separation of para-xylene
    Patent number: 4439535
    Abstract: Para-xylene may be recovered as raffinate by contacting a C-8 aromatic hydrocarbon mixture, in the presence of toluene desorbent, with a synthetic crystalline sodium aluminosilicate zeolite HP, containing pyridine in amount of at least about 3.3 wt. % of said zeolite, having a lattice constant of 25.02-25.10.ANG..
    Type: Grant
    Filed: September 3, 1982
    Date of Patent: March 27, 1984
    Assignee: Texaco Inc.
    Inventors: William Smolin, John H. Estes
  • Pyridine-modified Na X-type or Li X-type adsorbent characterized by its ability to separate para-xylene from C-8 aromatic hydrocarbon mixtures
    Patent number: 4415481
    Abstract: Para-xylene may be separated as front-end product in high purity by contacting charge C-8 aromatic hydrocarbon mixture with NaX-type or LiX-type zeolite in the presence of a pyridine.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: November 15, 1983
    Assignee: Texaco Inc.
    Inventor: William Smolin
  • Method of determining, as a property of an adsorbent, the selectivity for one component of a liquid charge composition with respect to a reference component of said charge composition
    Patent number: 4409819
    Abstract: An adsorbent may be tested at ambient temperature to determine its selectivity for one component of a charge liquid composition with respect to a reference component of the charge composition by equilbration at ambient temperature in the presence of an essentially inert liquid charge; the results determined at e.g. room temperature of e.g. 70.degree. F. are found to permit separation of xylenes at elevated temperatures of typically 340.degree. F.
    Type: Grant
    Filed: May 14, 1982
    Date of Patent: October 18, 1983
    Assignee: Texaco Inc.
    Inventor: William Smolin
  • Separation of para-xylene
    Patent number: 4393266
    Abstract: Para-xylene may be separated as front-end product in high purity by contacting charge C-8 aromatic hydrocarbon mixture with certain NaY-type zeolites in the presence of a pyridine.
    Type: Grant
    Filed: August 27, 1982
    Date of Patent: July 12, 1983
    Assignee: Texaco Inc.
    Inventor: William Smolin
  • Separation of para-xylene
    Patent number: 4351981
    Abstract: Para-xylene may be separated as front-end product in high purity by contacting charge C-8 aromatic hydrocarbon mixture with NaX-type or LiX-type zeolite in the presence of a pyridine.
    Type: Grant
    Filed: May 23, 1980
    Date of Patent: September 28, 1982
    Assignee: Texaco Inc.
    Inventor: William Smolin