Patents by Inventor Celeste A. Messina

Celeste A. Messina 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: 5114563
    Abstract: The catalytic conversion of hydrocarbon feedstocks is affected under effective conversion process conditions in the presence of silicoaluminophosphate-based catalyst compositions.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: May 19, 1992
    Assignee: UOP
    Inventors: Brent M. Lok, Celeste A. Messina, Robert L. Patton, Richard T. Gajek, Thomas R. Cannan, Edith M. Flanigen
  • Patent number: 4956165
    Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of MO.sub.2.sup.n, AlO.sub.2, and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR:(M.sub.x Al.sub.y P.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "M" represents iron and/or titanium, and at least one of cobalt, magnesium, manganese and zinc; "n" is 0, -1 or -2; "m" represents the molar amount of "R" present per mole of (M.sub.x Al.sub.y P.sub.z)O.sub.2 ; and "x", "y" and "z" represent the mole fractions of "M", aluminum and phosphorus, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: September 11, 1990
    Assignee: UOP
    Inventors: Brent M. T. Lok, Bonita K. Marcus, Celeste A. Messina, Stephen T. Wilson, Edith M. Flanigen
  • Patent number: 4952384
    Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of MO.sub.2.sup.n, AlO.sub.2, and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR : (M.sub.x Al.sub.y P.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "M" represents iron and/or titanium, and at least one of cobalt, magnesium, manganese and zinc; "n" is O, -1 or -2; "m" represents the molar amount of "R" present per mole of (M.sub.x Al.sub.y P.sub.z)O.sub.2 ; and "x", "y" and "z" represent the mole fractions of "M", aluminum and phosphorus, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: August 28, 1990
    Assignee: UOP
    Inventors: Brent M. T. Lok, Bonita K. Marcus, Celeste A. Messina, Stephen T. Wilson, Edith M. Flanigen
  • Patent number: 4917876
    Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of FeO.sub.2, TiO.sub.2, AlO.sub.2, and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR:(M.sub.x Al.sub.y P.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "M" represents iron and titanium, "m" represents the molar amount of "R" present per mole of (M.sub.x Al.sub.y P.sub.z)O.sub.2 ; and "x", "y" and "z" represnt the mole fractions of "M", aluminum and phosphorus, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.
    Type: Grant
    Filed: May 17, 1988
    Date of Patent: April 17, 1990
    Assignee: UOP
    Inventors: Brent M. T. Lok, Bonita K. Marcus, Celeste A. Messina, Edith M. Flanigen
  • Patent number: 4744885
    Abstract: Novel class of crystalline microporous ferroaluminophosphate compositions containing as lattice constituents in addition to AlO.sub.2 and PO.sub.2 structural units, ferric and/or ferrous iron in tetrahedral coordination with oxygen atoms. These compositions are prepared hydrothermally using organic templating agents and are suitably employed as catalysts or adsorbents.
    Type: Grant
    Filed: August 19, 1985
    Date of Patent: May 17, 1988
    Assignee: Union Carbide Corporation
    Inventors: Celeste A. Messina, Brent M. Lok, Edith M. Flanigen
  • Patent number: 4554143
    Abstract: Novel class of crystalline microporous ferroaluminophosphate compositions containing as lattice constituents in addition to AlO.sub.2 and PO.sub.2 structural units, ferric and/or ferrous iron in tetrahedral coordination with oxygen atoms. These compositions are prepared hydrothermally using organic templating agents and are suitably employed as catalysts or adsorbents.
    Type: Grant
    Filed: July 15, 1983
    Date of Patent: November 19, 1985
    Assignee: Union Carbide Corporation
    Inventors: Celeste A. Messina, Brent M. Lok, Edith M. Flanigen
  • Patent number: 4440871
    Abstract: A novel class of crystalline microporous silicoaluminophosphates is synthesized by hydrothermal crystallization of silicoaluminophosphate gels containing a molecular structure-forming templating agent. The class comprises a number of distinct species, each with a unique crystal structure. The compositions exhibit properties somewhat analogous to zeolitic molecular sieves which render them useful as adsorbent or catalysts in chemical reactions such as hydrocarbon conversions.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: April 3, 1984
    Assignee: Union Carbide Corporation
    Inventors: Brent M. Lok, Celeste A. Messina, Robert L. Patton, Richard T. Gajek, Thomas R. Cannan, Edith M. Flanigen