Patents Examined by Cynthia A. Prezluck
  • Patent number: 4734537
    Abstract: Disclosed is a catalytic process for the production of higher molecular weight hydrocarbons from lower molecular weight hydrocarbons. More particularly, disclosed is a catalytic process for the conversion of methane to C.sub.2 + hydrocarbons, particularly hydrocarbons rich in ethylene or benzene, or both. The process utilizes a metal-containing catalyst, high reaction temperature of greater than 1000.degree. C., and a high gas hourly space velocity of greater than 3200 hr.sup.-1.
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: March 29, 1988
    Assignee: Chevron Research Company
    Inventors: Louis Devries, P. R. Ryason
  • Patent number: 4663062
    Abstract: Disclosed are polyaminoalkenyl or alkyl succinimides which have been modified by treatment with a compound of the formula: ##STR1## wherein W is oxygen or sulfur; X is oxygen or sulfur; R.sub.4 is an alkylene group of from 2 to 3 carbon atoms or an alkylene group of from 2 to 3 carbon atoms substituted with from 1 to 3 alkyl groups of from 1 to 2 carbon atoms each; and R.sub.5 is hydrogen or alkyl of from 1 to 20 carbon atoms. The modified polyamino alkenyl or alkyl succinimides of this invention have been found to possess dispersancy and detergency in lubricating oils. These modified succinimides are also useful as dispersants and detergents in fuels.
    Type: Grant
    Filed: March 17, 1986
    Date of Patent: May 5, 1987
    Assignee: Chevron Research Company
    Inventor: Robert H. Wollenberg
  • Patent number: 4658077
    Abstract: A solid composition of matter is disclosed consisting essentially of sodium, potassium, a Group IA metal or a Group IA metal and a Group IIA metal, titanium, oxygen and, optionally, at least one of a halogen and tin, in which at least one of the sodium, the potassium, the Group IA metal or the Group IIA metal is present in an amount in excess of any amount present in electrically neutral compounds of the metal, the titanium and oxygen.The above compositions are particularly useful as solid contact materials for the oxidative conversion of feed organic compounds to product organic compounds, particularly in the presence of a free oxygen containing gas. A method for such conversion is also disclosed.
    Type: Grant
    Filed: June 7, 1985
    Date of Patent: April 14, 1987
    Assignee: Phillips Petroleum Company
    Inventors: John H. Kolts, James B. Kimble
  • Patent number: 4623443
    Abstract: A hydrocarbon conversion process wherein metal-coated or metal-contaminated cracking catalyst is regenerated, reduced and then used to hydrogenate an olefin.
    Type: Grant
    Filed: February 7, 1984
    Date of Patent: November 18, 1986
    Assignee: Phillips Petroleum Company
    Inventor: Stone P. Washer
  • Patent number: 4471151
    Abstract: A process for cracking a feed comprising at least one alkane involving contacting said feed with H.sub.2 S and a high surface area contact material under cracking conditions.
    Type: Grant
    Filed: January 6, 1983
    Date of Patent: September 11, 1984
    Assignee: Phillips Petroleum Company
    Inventor: John H. Kolts
  • Patent number: 4469586
    Abstract: Disclosed is a process for reducing the fouling in a heat exchanger in which a hydrocarbon stream is heated or cooled as it passes through the heat exchanger. From 1 to 500 parts per million of a saturated sulfoxide is added to the stream to reduce fouling.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: September 4, 1984
    Assignee: Chevron Research Company
    Inventor: Richard L. Ferm
  • Patent number: RE32235
    Abstract: Magnesium-containing complexes are prepared by heating a mixture of magnesium hydroxide, magnesium oxide, hydrated magnesium oxide or a magnesium alkoxide; a carboxylic acid, a sulfonic acid,a pentavalent phosphorus acid, or an ester or salt of any of these; water; and an organic solubilizing agent (which may be liquid or solid at ambient temperature) for the acid or ester. The amount of magnesium is such as to provide a basic composition. The resulting complexes may be obtained in liquid (which may be thickened) or solid form, and are useful as additives for lubricants and fuels and as protective coating compositions for metal surfaces (such as automotive undercoats and frame coatings). .[.This application is a continuation-in-part of copending application Ser. No. 681,627, filed Apr. 29, 1976 and now abandoned..].
    Type: Grant
    Filed: April 18, 1983
    Date of Patent: August 26, 1986
    Assignee: The Lubrizol Corporation
    Inventor: John W. Forsberg