Patents Represented by Attorney L. W. Evans
  • Patent number: 5214016
    Abstract: Disclosed is a method of making a catalyst containing vanadium antimony and tin in the oxide state which comprises making an aqueous slurry of a mixture of source batch materials comprising compounds of the elements to be included in the final catalyst followed by drying and heat calcining the mixture to an active catalyst, using as the source batch material for tin a stannous salt of a C.sub.1 to C.sub.18 acyclic, monocarboxylic acid containing no ethylenic or acetylenic carbon-to-carbon unsaturation.
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: May 25, 1993
    Assignee: The Standard Oil Company
    Inventors: James F. Brazdil, Ian R. Little, Joseph B. Hazen
  • Patent number: 5210364
    Abstract: A process for the production of olefins which comprises passing an oxygenate-containing feedstock over a zeo type catalyst at a temperature greater than 200.degree. C. characterized in that the oxygenate-containing feedstock comprises C.sub.3 and/or C.sub.4 olefins and as oxygenate methanol formaldehyde and/or dimethylether, the molar ratio of olefin to oxygenate being greater than 1:20 and the zeo type catalyst being of TON-type structure.
    Type: Grant
    Filed: November 7, 1991
    Date of Patent: May 11, 1993
    Assignee: The British Petroleum Co., p.l.c.
    Inventors: Sami A. I. Barri, David A. Kidd
  • Patent number: 5204079
    Abstract: A process of producing hydrogen cyanide from crude acetonitrile comprising contacting the crude acetonitrile with an ammoxidation catalyst at an elevated temperature in the presence of an oxygen containing gas and ammonia. Preferably, the process is performed in the absence of propylene.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: April 20, 1993
    Assignee: Standard Oil Company
    Inventors: Dev D. Suresh, Mark C. Cesa, Tai C. Yang, Robert K. Grasselli, Mark R. Bruce, Michael J. Seely, Maria S. Friedrich, Robert A. Dubbert
  • Patent number: 5196602
    Abstract: Maleic anhydride is hydrogenated to produce 1,4-butanediol in a two-stage process. In the first stage maleic anhydride and/or maleic acid contacted with hydrogen at a temperature of about 100.degree. C. to about 350.degree. C. in the presence of a suitable hydrogenation catalyst to produce succinic anhydride and/or gamma-butyrolactone. In the second stage, the succinic anhydride and/or gamma-butyrolactone and hydrogen are contacted at a temperature of about 180.degree. C. to about 350.degree. C. in the presence of a ruthenium-containing hydrogenation catalyst to produce 1,4-butanediol.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: March 23, 1993
    Assignee: The Standard Oil Company
    Inventors: John R. Budge, Thomas G. Attig, Anne M. Graham
  • Patent number: 5190998
    Abstract: Paving composition comprising a blend of specified bitumen and high vinyl butadiene, substantially free of added sulphur or peroxide, with elastic recovery greater than 50%.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: March 2, 1993
    Assignee: The British Petroleum Company p.l.c.
    Inventor: Robert G. Fisher
  • Patent number: 5175334
    Abstract: Olefins such as propylene and isobutylene are converted to the corresponding unsaturated nitriles, acrylonitrile, and methacrylonitrile, respectively, by reacting a mixture of the olefin, ammonia, and molecular oxygen-containing gas in the presence of a catalyst containing the oxides of bismuth, molybdenum, iron, nickel and magnesium, at least one element selected from the group comprising potassium and cesium, and optionally one element selected from the group comprising cobalt, phosphorus, manganese, tellurium, sodium, cerium, chromium, antimony and tungsten wherein the sum of cesium and potassium is at least 0.1 to 0.
    Type: Grant
    Filed: December 12, 1991
    Date of Patent: December 29, 1992
    Assignee: The Standard Oil Company
    Inventors: Dev D. Suresh, Maria S. Friedrich, Michael J. Seely
  • Patent number: 5171876
    Abstract: Disclosed is a process for making an .alpha., .beta.-unsaturated mononitrile by the catalytic reaction of a paraffin containing 3-5 carbon atoms with molecular oxygen and ammonia by catalytic contact of the foregoing reactants in a reaction zone with a metal oxide catalyst containing the elements indicated by the empirical formula,Cr.sub.a Mo.sub.b Te.sub.c M.sub.d O.sub.x (formula 1)whereM=one or more of Mg, Ni, Sb, Ti, La, P, Ce, Fe, Nb, W, V, and Cu, each of a, b & c is 0.1 to 10d is zero to 10a+b+c>1.5d, andx is determined by the valence requirements of the other elements present, andwherein the reactants fed to the reaction zone contain a mole ratio of said paraffin:NH.sub.3 in the range from 2.5 to 16 and a mole ratio of said paraffin:O.sub.2 in the range from 1 to 10.
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: December 15, 1992
    Assignee: The Standard Oil Company
    Inventors: Dev D. Suresh, Michael J. Seeley, Jeanette R. Nappier, Maria S. Friedrich
  • Patent number: 5124291
    Abstract: A fluid bed catalyst which has lost activity or fluidization quality through agglomeration, contamination, or a physical or chemical change on the surface of the catalyst is deagglomerated and/or its surface re-exposed, by contacting the fluidized catalyst with a high velocity gas sufficient to cause multiple collisions among the catalyst particles and thereby deagglomerating the particles and/or abrading the surface of the particles to expose fresh catalyst.
    Type: Grant
    Filed: November 15, 1990
    Date of Patent: June 23, 1992
    Assignee: The Standard Oil Company
    Inventors: Noel J. Bremer, Louis R. Trott, Timothy R. McDonel
  • Patent number: 5118653
    Abstract: A catalyst which is substantially free of alkali and alkaline earth metals and comprises an effective amount of a platinum group metal on a silicalite support; characterised in that the catalyst also comprises tin. There is also provided a process for the dehydrogenation of a C.sub.2 to C.sub.10 paraffin to yield an alkene product, which comprises contacting the paraffin under dehydrogenation conditions with a catalyst according to the invention.
    Type: Grant
    Filed: May 22, 1990
    Date of Patent: June 2, 1992
    Assignee: The British Petroleum Company, p.l.c.
    Inventors: Sami A. I. Barri, Rabaab Tahir
  • Patent number: 5118846
    Abstract: Disclosed is a method which comprises introducing into a reaction zone a feed which comprises a hydroxyl compound reactant, R"OH at least one amide reactant selected from R--CONH.sub.2 and R--CONHR', and a Lewis base as catalyst, thereby reacting R"OH with said amide reactant to produce a reaction mixture containing at least one disubstituted amide selected from R--CONR".sub.2 and R--CONR'R", whereineach of R, R' and R" contains no acetylenic unsaturation and 1 to 30 carbon atoms;each of R, R' and R" is selected from a hydrocarbyl groups and a hydrocarbyl group that is substituted with a group selected from carbamoyl, hydrocarbylcarbamoyl, dihydrocarbylcarbamoyl, and hydroxyl.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: June 2, 1992
    Assignee: The Standard Oil Company
    Inventor: Mark C. Cesa
  • Patent number: 5106925
    Abstract: A process for forming a stable and processable polymer comprised of methacrylonitrile (10 to 80 percent) and acrylonitrile (20 to 90 percent) by controlling the ratio of the monomers in the reaction mixture.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: April 21, 1992
    Assignee: The Standard Oil Company
    Inventors: Benedict S. Curatolo, George S. Li
  • Patent number: 5103055
    Abstract: Disclosed is a method which comprises the reaction in a reaction zone of a nitrile, RCN, with a hydroxyl compound, R'OH, in the presence of water introduced into the reaction zone in the amount of more than 0.15 mole and up to 10 moles, per mole of RCN introduced to the reaction zone, thereby producing a reaction mixture containing at least one amide selected from R--CONHR' and R--CON(R').sub.
    Type: Grant
    Filed: May 10, 1990
    Date of Patent: April 7, 1992
    Assignee: The Standard Oil Company
    Inventor: Mark C. Cesa
  • Patent number: 5099066
    Abstract: Disclosed is a method which comprises the reaction in a reaction zone of a nitrile, RCN, with a hydroxyl compound, R'OH, in the presence of a Lewis base as catalyst introduced into the reaction zone, thereby producing a reaction mixture containing at least one amide selected from R--CONHR' and R--CON(R').sub.2, whereineach of R and R' contains no acetylenic unsaturation and 1 to 30 carbon atoms,each of R and R' is independently selected from a hydrocarbyl group and a hydrocarbyl group that is substituted with a group selected from cyano, carbamoyl, hydrocarbylcarbamoyl, dihydrocarbylcarbamoyl, and hydroxyl.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: March 24, 1992
    Assignee: The Standard Oil Company
    Inventor: Mark C. Cesa
  • Patent number: 5094989
    Abstract: Disclosed is a process for making an activated antimony and vanadium-containing catalyst in oxide form having an atomic ratio of Sb:V in the range from 0.8-4, which comprises calcining such an oxidic vanadium and antimony-containing composition at a temperature of over 750.degree. C., and thereafter contacting said calcined catalyst with a hydroxy compound in liquid form selected from (1) cyclohexanol, (2) cyclopentanol, (3) a monohydroxy, acyclic hydrocarbon having 1-8 C atoms, and (4) a dihydroxy, acyclic hydrocarbon having 2-4 carbon atoms, and separating as a liquid said compound from said catalyst insofar as it is present beyond the amount wetting said catalyst, and thereafter drying said catalyst.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: March 10, 1992
    Assignee: The Standard Oil Company
    Inventors: Charles S. Lynch, Linda C. Glaeser, James F. Brazdil, Jr., Mark A. Toft
  • Patent number: 5079207
    Abstract: Disclosed is a process for making an .alpha., .beta.-unsaturated monoitrile by the catalytic reaction of a paraffin containing 3-5 carbon atoms with molecular oxygen and ammonia by catalytic contact of the foregoing reactants in a reaction zone with a metal oxide catalyst containing the elements indicated by the empirical formula,V.sub.v A.sub.a D.sub.d Sn.sub.m Sb.sub.n Cu.sub.c O.sub.x (formula 1)in the relative atomic proportions indicated by the subscripts, whereA is selected from Te and BiD is one or more optional elements selected from Mo, W, Ti, Ge, Ce, La, Cr, Mn, Mg, Ca, Co, Ni, Fe, Nb, Ta, Ag, Zn, Cd, B, P, Na, K and Cs, anda is 0.001 to 30d is zero to 30c is 0.001 to 30m is 0.1 to 60n is 0.1 to 60n/v is>12 and<100m+n is.gtoreq.v+a+c+d, andx is determined by the valence requirements of the elements present, andwherein the reactants fed to the reaction zone contain a mole ratio of said paraffin:NH.sub.3 in the range from 2 to 16 and a mole ratio of said paraffin:O.sub.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: January 7, 1992
    Assignee: The Standard Oil Company
    Inventors: James F. Brazdil, Linda C. Glaeser, Mark A. Toft
  • Patent number: 5072009
    Abstract: Tetrahydrofuran and optionally gamma-butyrolactone are prepared from at least one of maleic anhydride or succinic anhydride in the absence of alcohols by catalytically hydrogenating vaporous maleic anhydride or vaporous succinic anhydride in the presence of hydrogen and a catalyst comprising the mixed oxides of copper, zinc and aluminum.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: December 10, 1991
    Assignee: The Standard Oil Company
    Inventors: John R. Budge, Thomas G. Attig
  • Patent number: 5070944
    Abstract: A mechanical actuator operated by electrical power suitable for actuating down hole equipment in a well, e.g. down hole safety valves, has an electric motor, a gear assembly with a mechanical advantage of at least 30:1, a two-part drive sleeve, the parts being connected by, e.g. splines so that the two parts can rotate together while capable of relative axial movement, an actuating sleeve moved axially by rotation of the drive sleeve, and a releasable lock operated by a solenoid to lock the two parts of the drive sleeve against relative axial movement. Rotation of the motor in one direction primes the actuator, rotating in the other direction actuates the equipment and the solenoid-operated releasable lock holds the equipment in the actuating position. If the solenoid is switched off, deliberately or by power failure, the lock is released allowing the equipment to return to its fail-safe position.
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: December 10, 1991
    Assignee: British Petroleum Company p.l.c.
    Inventor: Hans P. Hopper
  • Patent number: 5072024
    Abstract: Disclosed is a method which comprises the reaction in a reaction zone of a nitrile, RCN, with a hydroxyl compound, R'OH, in the presence of an inorganic catalyst introduced into the reaction zone, thereby producing a reaction mixture containing at least one amide selected from R--CONHR' and R--CON(R').sub.2, whereineach of R and R' contains no acetylenic unsaturation and 1 to 30 carbon atoms,each of R and R' is independently selected from a hydrocarbyl group and a hydrocarbyl group that is substituted with a group selected from cyano, carbamoyl, hydrocarbylcarbamoyl, dihydrocarbylcarbamoyl, and hydroxyl,wherein said inorganic catalyst is selected from phosphates and sulfates of Be, Ng, Al and B, and mixtures thereof.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: December 10, 1991
    Assignee: The Standard Oil Company
    Inventors: Mark C. Cesa, Sandra L. Denman
  • Patent number: 5065631
    Abstract: A gauge for measuring bending of structures comprises a bending bar which may be attached to the structure so that it bends in response to bending of the structure and having means for measuring bending of the bar whereby measurement of bending of the bar enables bending of the structure to be determined. Preferably, the bar is hollow with strain gauges on its inner surface and is attached so that at least part of it may move longitudinally along its axis with respect to the structure.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: November 19, 1991
    Assignee: The British Petroleum Company, p.l.c.
    Inventors: William G. Ashpitel, Ralph G. W. Parsons
  • Patent number: 5066809
    Abstract: Disclosed is a process for making 3-methylpyridine by contacting 2-methylglutaronitrile in admixture with hydrogen gas with a supported solid catalyst containing palladium metal promoted with at least one of Cr, W, Ni, Co and Ge.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: November 19, 1991
    Assignee: The Standard Oil Company
    Inventors: Dev D. Suresh, Robert DiCosimo, Richard Loiseau, Maria S. Friedrich, Hsiao-Chiung Szabo