Ton; E.g., Theta-1, Isi-1, Kz-2, Zsm-22, Nu-10 Patents (Class 423/DIG35)
  • ZSM-22 zeolite
    Patent number: 5866096
    Abstract: ZSM-22 zeolite which is particularly pure and whose synthesis does not require the synthesis mixture to be stirred can be produced by the addition to the synthesis mixture of a small quantity e.g. 1000 ppm, of preformed ZSM-22 zeolite seed crystals.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: February 2, 1999
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Johannes Petrus Verduijn, Luc Roger Marc Martens
  • Preparation of zeolites using organic template and amine
    Patent number: 5785947
    Abstract: Crystalline zeolites are prepared using a small quantity of an organic templating compound and a larger quantity of an amine component containing at least one amine having from one to eight carbon atoms, ammonium hydroxide, or mixtures thereof.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: July 28, 1998
    Assignee: Chevron U.S.A. Inc.
    Inventors: Stacey I. Zones, Yumi Nakagawa
  • ZSM-22 zeolite
    Patent number: 5783168
    Abstract: ZSM-22 zeolite which is particularly pure and whose synthesis does not require the synthesis mixture to be stirred can be produced by the addition to the synthesis mixture of a small quantity e.g. 1000 ppm, of preformed ZSM-22 zeolite seed crystals.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: July 21, 1998
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Johannes Petrus Verduijn, Luc Roger Marc Martens
  • Catalyst comprising a faujasite type zeolite and a ton type zeolite and a process for the hydroconversion of hydrocarbon petroleum feeds
    Patent number: 5762902
    Abstract: The invention concerns a composition comprising at least one matrix, at least one faujasite type zeolite and at least one TON type zeolite. The TON type zeolite can be Nu-10, THETA-1, KZ-2, or ISI-1. The catalyst also contains at least one hydrogenating element from groups VIII and VI.The catalyst is particularly for use for hydrocracking to maximize the yield of middle distillates (kerosine and gas oil).
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: June 9, 1998
    Assignee: Institut Francais du Petrole
    Inventors: Eric Benazzi, Samuel Mignard, Nathalie George-Marchal, Slavik Kasztelan
  • Process for producing substantially binder-free zeolite
    Patent number: 5665325
    Abstract: Silica-bound extruded zeolites may be converted into binder-free zeolite aggregates by aging the zeolite in an aqueous ionic solution which contains hydroxy ions such that the initial molar ratio of OH.sup.- :SiO.sub.2 is up to 1.2 and which causes the silica binder to be converted substantially to zeolite of the type initially bound. Such extrudates have excellent mechanical strength and show advantageous properties such as adsorption comparable with non-extruded zeolite powder.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: September 9, 1997
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Johannes Petrus Verduijn
  • Process for producing substantially binder-free zeolite
    Patent number: 5460796
    Abstract: Silica-bound extruded zeolites may be converted into binder-free zeolite aggregates by aging the zeolite in an aqueous ionic solution which contains hydroxy ions such that the initial molar ratio of OH-:SiO.sub.2 is up to 1.2 and which causes the silica binder to be converted substantially to zeolite of the type initially bound. Such extrudates have excellent mechanical strength and show advantageous properties such as adsorption comparable with non-extruded zeolite powder.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: October 24, 1995
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Johannes P. Verduijn
  • Selective surface dealumination of zeolites using dicarboxylic acid
    Patent number: 5242676
    Abstract: A process for the selective surface dealumination of a zeolite having a Constraint Index greater than 1 by contacting the zeolite with dicarboxylic acid, such as oxalic acid.
    Type: Grant
    Filed: May 11, 1992
    Date of Patent: September 7, 1993
    Assignee: Mobil Oil Corp.
    Inventors: Minas R. Apelian, Anthony S. Fung