Patents Assigned to Zeochem
  • Molecular sieve adsorbent-catalyst for sulfur compound contaminated gas and liquid streams and process for its use
    Publication number: 20020009404
    Abstract: An adsorbent-catalyst for removal of sulphur compounds from sulfur compound contaminated gas and liquid feed streams, wherein the adsorbent-catalyst is a synthetic X or Y faujasite with a silica to alumina ratio from 1.8:1 to about 5:1 and wherein 40 to 90% of the cations of the faujasite include transition metals of Groups IB, IIB and VIIB with the balance of the cations being alkali or alkaline earth metals.
    Type: Application
    Filed: July 18, 2001
    Publication date: January 24, 2002
    Applicant: Zeochem LLC
    Inventors: Albert M. Tsybulevskiy, Edward J. Rode
  • Molecular sieve adsorbent for gas purification and preparation thereof
    Publication number: 20010049998
    Abstract: A molecular sieve adsorbent for the purification of gas streams containing water vapor and carbon dioxide. The adsorbent is a combination of sodium form of a low-silica faujasite, having a residual content of potassium ions less than about 8.0 percent (equiv.), a low content of crystalline and amorphous admixtures and crystal sizes generally within the range of 1-4 &mgr;m, and a binder.
    Type: Application
    Filed: January 19, 2001
    Publication date: December 13, 2001
    Applicant: ZEOCHEM
    Inventors: Edward J. Rode, Albert M. Tsybulevskiy
  • Molecular sieve adsorbent for gas purification and preparation thereof
    Patent number: 6183539
    Abstract: A molecular sieve adsorbent for the purification of gas streams containing water vapor and carbon dioxide and a process for its preparation. The adsorbent is a sodium form of a low-silica faujasite having a silica to alumina ratio of about 1.8:1 to about 2.2:1, a residual content of potassium ions less than about 8.0 percent (equiv.), a low content of crystalline and amorphous admixtures and crystal sizes generally within the range of 1-4 &mgr;m, blended with a binder.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: February 6, 2001
    Assignee: Zeochem Co.
    Inventors: Edward J. Rode, Albert M. Tsybulevskiy
  • Sulfur adsorbent for use with oil hydrogenation catalysts
    Patent number: 6096194
    Abstract: An adsorbent for organic sulfur compound removal from mineral, vegetable or animal oils useful to protect a hydrogenation catalyst against poisoning, wherein the adsorbent is a zinc-exchanged form of low silica faujasite with a silica to alumina ratio from about 1.8 to about 2.1, wherein the adsorbent contains an inequivalent excess of zinc cations from about 8 to about 20% (equiv.) and a process for manufacture and use of the adsorbent.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: August 1, 2000
    Assignee: Zeochem
    Inventors: Albert M. Tsybulevskiy, Edward J. Rode, Eric J. Weston, Kerry C. Weston
  • Synthetic zeolite
    Patent number: 4093699
    Abstract: Method for making a zeolite having the structure of offretite, consisting of reacting in a closed container under autogenous pressure in the absence of tetramethylammonium ions, a composition having specific mole rations of K.sub.2 O,Na.sub.2 O,SiO.sub.2, Al.sub.2 O.sub.3, and H.sub.2 O.
    Type: Grant
    Filed: November 10, 1976
    Date of Patent: June 6, 1978
    Assignee: Zeochem Corporation
    Inventor: Leonard B. Sand
  • Process for producing fluidized mordenite particles
    Patent number: 4081514
    Abstract: Process for forming a zeolite particle in the fluidizable size range from 20 to 150 micrometers. Acid-stable, molecular sieve zeolite mordenite is formed by mixing silica-alumina gel particles in the fluidized size range with sodium silicate, sodium hydroxide, sodium chloride, and mordenite seed crystals. For example, the mixture is reacted under autogenous pressure at 180.degree. C for 24 hours.
    Type: Grant
    Filed: February 10, 1976
    Date of Patent: March 28, 1978
    Assignee: Zeochem Corporation
    Inventors: Leonard B. Sand, Glenn W. Dodwell
  • Preparation of synthetic ferrierite
    Patent number: 4017590
    Abstract: Synthetic Na,K-ferrierite, a molecular sieve zeolite capable of intracrystalline adsorption of molecules, is prepared by hydrothermal synthesis in the water, soda, potash, alumina, silica system. Crystallization is best achieved in the temperature range of 230.degree.-310.degree. C and autoclaving times of 2-96 hours with the use of co-precipitated silica-alumina gels and Na and K carbonates and bicarbonates.
    Type: Grant
    Filed: April 15, 1976
    Date of Patent: April 12, 1977
    Assignee: Zeochem Corporation
    Inventors: William E. Cormier, Leonard B. Sand
  • Test method for determining zeolite
    Patent number: 3982896
    Abstract: A test method for determining the amount of zeolite material in a sample comprising heating a weighed portion of the sample to remove adsorbed water, cooling the heated portion, adding a known quantity of water to the portion, noting the resulting temperature rise and correlating the temperature rise to the amount of zeolite material in the sample. The test can be carried out in the field with a kit which includes a weighing device.
    Type: Grant
    Filed: November 4, 1974
    Date of Patent: September 28, 1976
    Assignee: Zeochem Corporation
    Inventors: Charles A. Keisling, Leonard B. Sand