Patents by Inventor Marvin S. Goldstein

Marvin S. Goldstein 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).

  • Catalyst for hydroconversion of heavy oils and method of making the catalyst
    Patent number: 4652545
    Abstract: Catalysts for hydroconversion of heavy oils, particularly those containing Ramsbottom carbon precursors, comprise nickel or cobalt and molybdenum on porous alumina containing 1-3% silica. The catalysts have total pore volume of 0.5 to 1.5 ml/gm with at least 70% of the pore volume in pores of 40-60.ANG. pore radius and with only about 10-35% of the nickel or cobalt in acid extractable form.
    Type: Grant
    Filed: May 6, 1985
    Date of Patent: March 24, 1987
    Assignee: American Cyanamid Company
    Inventors: John F. Lindsley, Marvin S. Goldstein, William H. Quayle
  • Process for hydrotreating heavy hydrocarbons and catalyst used in said process
    Patent number: 4411771
    Abstract: Spherical particles of alumina are prepared by agitating a slurry of solids comprising rehydratable alumina solids in water with a hot immiscible liquid to disperse droplets of the slurry in a continuous phase of the immiscible liquid. The droplets are shaped by interfacial surface tension and are hardened by heat while in the immiscible liquid, then are separated and calcined to produce finished spherical alumina beads. The preferred beads are of size less than one millimeter. These are used as supports for catalysts that are used in several oil refining processes such as hydrotreating for removal of sulfur or for reforming or cracking.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: October 25, 1983
    Assignee: American Cyanamid Company
    Inventors: William E. Bambrick, Marvin S. Goldstein