With Group Iv, V, Vi, Vii Or Viii Metal Compound Patents (Class 208/295)
  • Patent number: 4090953
    Abstract: An improved process for preparing a stabilized lubricating oil resistant to oxidation and sludge formation upon exposure to a highly oxidative environment, such as when metals are present and an overbased component is present in the lubricating oil, is provided. In the present process wherein a lubricating oil stock to be upgraded is contacted with elemental sulfur in the presence of a catalyst material selected from the group consisting of alumina, aluminosilicate, a metal of Groups II-A, II-B, VI-B or VIII of the Periodic Table of Elements, an oxide of a metal of Groups II-A, II-B, VI-B or VIII, a sulfide of a metal of Groups II-A, II-B, VI-B or VIII, clay, silica, silica combined with an oxide of a metal of Groups II-A, III-A, IV-B or V-B, and combinations thereof, at relatively low temperatures of from about 150.degree. to about 225.degree.
    Type: Grant
    Filed: June 8, 1976
    Date of Patent: May 23, 1978
    Assignee: Mobil Oil Corporation
    Inventors: Robert F. Bridger, Costandi A. Audeh, El-Ahmadi I. Heiba
  • Patent number: 4083924
    Abstract: A method of regenerating used particulate contaminant-removing material, such as iron oxide or iron sulfide, that has been used to remove a contaminant, such as arsenic, from a synthetic hydrocarbonaceous feed and effect deposition of the contaminant within the material, characterized by a multi-step process as follows: (1) the used, or spent, contaminant-removing material is intimately contacted with a sulfur-containing material, such as hydrogen sulfide or sulfur, in an inert atmosphere of non-oxidizing fluid and at elevated temperature; (2) the contaminant deposited in the contaminant-removing material is reacted with the sulfur in the sulfur-containing material at the elevated temperature and the resulting sulfides of the contaminant; for example, arsenic sulfides; are converted to gaseous form to separate them from the regenerated contaminant-removing material; and (3) the sulfides of the contaminant are condensed and oxidized to form the oxides of the contaminant; for example, arsenic oxides.
    Type: Grant
    Filed: January 23, 1974
    Date of Patent: April 11, 1978
    Assignee: Atlantic Richfield Company
    Inventor: Ralph E. Styring
  • Patent number: 4051022
    Abstract: A method for removing at least one impurity selected from the group consisting of arsenic and selenium from a synthetic crude oil or a fraction thereof by employing iron or cobalt, nickel, oxides in a coprecipitated solid matrix with aluminum oxide, in a hydrogen atmosphere, at a temperature of at least 300.degree. F, and in the substantial absence of water, whereby at least one of the arsenic and selenium is removed by way of iron or cobalt, oxide, or sulfide. Also disclosed is a method of preparation and use of a particularly preferred structural matrix in accordance with one embodiment of this invention.
    Type: Grant
    Filed: July 18, 1975
    Date of Patent: September 27, 1977
    Assignee: Atlantic Richfield Company
    Inventors: Gary A. Myers, Donald K. Wunderlich
  • Patent number: 3974066
    Abstract: A method is disclosed for the treatment of a petroleum charge stock which comprises the treatment of said petroleum charge stock with an aqueous solution containing a metal phthalocyanine compound and a compound selected from the group consisting of an alkali metal sulfide and an alkali metal sulfite.
    Type: Grant
    Filed: June 12, 1975
    Date of Patent: August 10, 1976
    Assignee: Universal Oil Products Company
    Inventors: Kenneth M. Brown, Thomas A. Verachtert
  • Patent number: 3936371
    Abstract: A hydrocarbon oil, particularly a heavy hydrocarbon oil, containing vanadium, nickel, sulfur and asphaltenes is brought into contact with red mud at an elevated temperature in the presence of hydrogen. The treatment removes vanadium, nickel and asphaltenes from oil in high yields.
    Type: Grant
    Filed: March 14, 1974
    Date of Patent: February 3, 1976
    Assignee: Agency of Industrial Science & Technology
    Inventors: Shigeru Ueda, Yoshinori Nakata, Shinichi Yokoyama, Naoyuki Todo, Yuji Yoshida, Tadao Ishii, Gen Takeya