To Be Used As A Melt Patents (Class 502/3)
  • Patent number: 9272274
    Abstract: The present invention concerns a process for creating a Carbon-Carbon bond (C—C) or a Carbon-Heteroatom bond (C-HE) by reacting a compound carrying a leaving group with a nucleophilic compound carrying a carbon atom or a heteroatom (HE) that can substitute for the leaving group, creating a C—C or C-HE bond, wherein the reaction takes place in the presence of an effective quantity of a. a catalytic system comprising a ligand and at least a metal-based catalyst, such a metal catalyst being chosen among iron or copper compounds proviso that only a single metal is present.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: March 1, 2016
    Assignee: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.)
    Inventors: Marc Taillefer, Ning Xia, Florian Monnier, Anis Tlili
  • Patent number: 7947623
    Abstract: A hydroprocessing bulk catalyst is provided. A process to prepare hydroprocessing bulk catalysts is also provided. The hydroprocessing catalyst has the formula (Mt)a(Lu)b(Sv)d(Cw)e(Hx)f(Oy)g(Nz)h,, wherein M is at least one group VIB metal; promoter metal L is optional and if present, L is at least one Group VIII non-noble metal; t, u, v, w, x, y, z representing the total charge for each of the components (M, L, S, C, H, O and N, respectively); ta+ub+vd+we+xf+yg+zh=0; 0=<b; and 0=<b/a=<5, (a+0.5b)<=d<=(5a+2b), 0<=e<=11(a+b), 0<=f<=7(a+b), 0<=g<=5(a+b), 0<=h<=0.5(a+b). The catalyst has an X-ray powder diffraction pattern with at least one broad diffraction peak at any of Bragg angles: 8 to 18°, 32 to 40°, and 55 to 65° (from 0 to 70° 2-? scale).
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: May 24, 2011
    Inventors: Oleg Mironov, Alexander E. Kuperman, Jaime Lopez, Axel Brait, Bruce Reynolds, Kaidong Chen
  • Patent number: 7807597
    Abstract: A process for regenerating a used acidic ionic liquid catalyst comprising contacting the used ionic liquid catalyst with at least one ‘regeneration’ metal in a regeneration zone in the presence of added hydrogen under regeneration conditions for a time sufficient to increase the activity of the ionic liquid catalyst is described. In one embodiment, regeneration is conducted in the presence of a hydrocarbon solvent.
    Type: Grant
    Filed: April 8, 2008
    Date of Patent: October 5, 2010
    Assignee: Chevron U.S.A. Inc.
    Inventors: Saleh Elomari, Thomas V. Harris
  • Patent number: 7754645
    Abstract: A process to prepare hydroprocessing bulk catalysts is provided. The hydroprocessing catalyst has the formula (Mt)a(Xu)b(Sv)d(Cw)e(Hx)f(Oy)g(Nz)h, wherein M is at least one group VIB metal; X is at least at least a metal compound selected from a non-noble Group VIII metal, a Group VIIIB metal, a Group VIB metal, a Group IVB metal, and a Group IIB metal (“Promoter Metal”); t, u, v, w, x, y, z representing the total charge for each of the components (M, X, S, C, H, O and N, respectively); ta+ub+vd+we+xf+yg+zh=0; and 0=<b/a=<5, (a+0.5b)<=d<=(5a+2b), 0<=e<=11(a+b), 0<=f<=7(a+b), 0<=g<=5(a+b), 0<=h<=0.5(a+b).
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: July 13, 2010
    Assignee: Chevron U.S.A. Inc.
    Inventors: Alexander E. Kuperman, Jaime Lopez, Oleg Mironov, Axel Brait
  • Patent number: 7737073
    Abstract: A hydroprocessing bulk catalyst is provided. A process to prepare hydroprocessing bulk catalysts is also provided. The hydroprocessing catalyst has the formula (Mt)a(Lu)b(Sv)d(Cw)e(Hx)f(Oy)g(Nz)h, wherein M is at least one group VIB metal; promoter metal L is optional and if present, L is at least one Group VIII non-noble metal; t, u, v, w, x, y, z representing the total charge for each of the components (M, L, S, C, H, O and N, respectively); ta+ub+vd+we+xf+yg+zh=0; 0=<b; and 0=<b/a=<5, (a+0.5b)<=d<=(5a+2b), 0<=e<=11(a+b), 0<=f<=7(a+b), 0<=g<=5(a+b), 0<=h<=0.5(a+b). The catalyst has an X-ray powder diffraction pattern with at least one broad diffraction peak at any of Bragg angles: 8 to 18°, 32 to 40°, and 55 to 65° (from 0 to 70° 2-? scale).
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: June 15, 2010
    Assignee: Chevron U.S.A. Inc.
    Inventors: Oleg Mironov, Alexander E. Kuperman, Jaime Lopez, Axel Brait, Bruce Reynolds, Kaidong Chen
  • Patent number: 7737072
    Abstract: A hydroprocessing catalyst is provided. The hydroprocessing catalyst has the formula (Mt)a(Xu)b(Sv)d(Cw)e(Hx)f(Oy)g(Nz)h, wherein M is at least one group VIB metal; X is at least one Group VIII non-noble metal; t, u, v, w, x, y, z representing the total charge for each of the components (M, X, S, C, H, O and N, respectively); ta+ub+vd+we+xf+yg+zh=0; and 0=<b/a=<5, (a+0.5b)<=d<=(5a+2b), 0<=e<=11(a+b), 0<=f<=7(a+b), 0<=g<=5(a+b), 0<=h<=0.5(a+b). The catalyst has an X-ray powder diffraction pattern with at least one broad diffraction peak at any of Bragg angles: 8 to 18°, 32 to 40°, and 55 to 65° (from 0 to 70° 2-? scale). In one embodiment, the at least one diffraction peak is greater than 2 degrees wide at ½ height.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: June 15, 2010
    Assignee: Chevron USA Inc.
    Inventors: Oleg Mironov, Alexander E. Kuperman, Jaime Lopez, Axel Brait, Bruce Reynolds, Kaidong Chen
  • Patent number: 7678731
    Abstract: An improved hydroprocessing catalyst having improved morphology/dispersion characteristics is provided. The hydroprocessing catalyst has the formula (Mt)a(Lu)b(Sv)d(Cw)e(Hx)f(Oy)g(Nz)h, wherein M is at least one group VIB metal; L is optional and if present, L is at least one Group VIII non-noble metal; t, u, v, w, x, y, z representing the total charge for each of the components (M, X, S, C, H, O and N, respectively); ta+ub+vd+we+xf+yg+zh=0; 0=<b and 0=<b/a=<5, (a+0.5b)<=d<=(5a+2b), 0<=e<=11(a+b), 0<=f<=7(a+b), 0<=g<=5(a+b), 0<=h<=0.5(a+b). The catalyst is prepared by a process in which at least a sulfur additive is added to the sulfidation process in forming the catalyst precursor.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: March 16, 2010
    Assignee: Chevron USA Inc.
    Inventors: Oleg Mironov, Alexander E. Kuperman
  • Patent number: 7678730
    Abstract: A hydroprocessing bulk catalyst is provided. A process to prepare hydroprocessing bulk catalysts is also provided. The hydroprocessing catalyst has the formula (Mt)a(Lu)b(Sv)d(Cw)e(Hx)f(Oy)g(Nz)h, wherein M is at least one group VIB metal; L is optional and if present, L is at least one Group VIII non-noble metal; t, u, v, w, x, y, z representing the total charge for each of the components (M, L, S, C, H, O and N, respectively); ta+ub+vd+we+xf+yg+zh=0; 0=<b; and 0=<b/a=<5, (a+0.5b)<=d<=(5a+2b), 0<=e<=11(a+b), 0<=f<=7(a+b), 0<=g<=5(a+b), 0<=h<=0.5(a+b). The catalyst has an X-ray powder diffraction pattern with at least one broad diffraction peak at any of Bragg angles: 8 to 18°, 32 to 40°, and 55 to 65° (from 0 to 70° 2-? scale).
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: March 16, 2010
    Assignee: Chevron USA Inc.
    Inventors: Oleg Mironov, Alexander E. Kuperman
  • Patent number: 7585404
    Abstract: This application discloses a process for decomposition of ammonium sulfates found in a stream comprising ammonium sulfate and slurry catalyst in oil. The ammonium sulfate is broken down into ammonia and hydrogen sulfide gas. These gases have many uses throughout the refinery, including the preparation of slurry hydroprocessing catalyst.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: September 8, 2009
    Assignee: Chevron U.S.A. Inc.
    Inventors: Bruce E. Reynolds, Axel Brait
  • Patent number: 7410928
    Abstract: The instant invention is directed to the preparation of a catalyst composition suitable for the hydroconversion of heavy oils. The catalyst composition is prepared by a series of steps, involving mixing a Group VIB metal oxide particularly molybdenum oxide and aqueous ammonia to form an aqueous mixture, and sulfiding the mixture to form a slurry. The slurry is then promoted with a Group VIII metal. Subsequent steps involve mixing the slurry with a hydrocarbon oil and combining the resulting mixture with hydrogen gas and a second hydrocarbon oil having a lower viscosity than the first oil. An active catalyst composition is thereby formed.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: August 12, 2008
    Assignee: Chevron U.S.A. Inc.
    Inventors: Kaidong Chen, Pak C. Leung, Bruce E. Reynolds
  • Patent number: 7396799
    Abstract: The instant invention is directed to the preparation of a slurry catalyst composition. The slurry catalyst composition is prepared in a series of steps, involving mixing a Group VIB metal oxide, particularly molybdenum and aqueous ammonia to form an aqueous mixture and sulfiding the mixture to form a slurry. The slurry is then promoted with a Group VIII metal. Subsequent steps involve mixing the slurry with a hydrocarbon oil, and combining the resulting mixture with hydrogen gas (under conditions which maintain the water in a liquid phase) to produce the active slurry catalyst.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: July 8, 2008
    Assignee: Chevron U.S.A. Inc.
    Inventors: Kaidong Chen, Bruce E. Reynolds
  • Patent number: 6218326
    Abstract: An entirely new class of catalysts called supported molten-metal catalysts, SMMC, which can replace some of the existing precious metal catalysts used in the production of fuels, commodity chemicals, and fine chemicals, as well as in combating pollution. SMMC are based on supporting ultra-thin films or micro-droplets of the relatively low-melting (<600° C.), inexpensive, and abundant metals and semimetals from groups 1, 12, 13, 14, 15 and 16, of the periodic table, or their alloys and intermetallic compounds, on porous refractory supports, much like supported microcrystallites of the traditional solid metal catalysts. It thus provides orders of magnitude higher surface area than is obtainable in conventional reactors containing molten metals in pool form and also avoids corrosion. These have so far been the chief stumbling blocks in the application of molten metal catalysts.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: April 17, 2001
    Assignee: University of Iowa Research Foundation
    Inventors: Ravindra Datta, Ajeet Singh, Istvan Halasz, Manuela Serban
  • Patent number: 5985778
    Abstract: A one-step method and compositions for stabilization of heavy metals, acid gas removal and pH control in hazardous and toxic solid, semi-solid, liquid and/or gaseous matrices using a mixture of reactive agents in a single product, for the broader purpose of enhancing environmental pollution control, prevention and remediation are described. The product contains sulfonated calcium aluminum magnesium phosphate. This material may be used alone or in combination with magnesium sulfite and/or hydroboracite.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: November 16, 1999
    Assignee: Bhat Industries, Inc.
    Inventor: Vasanth K. Bhat
  • Patent number: 5719099
    Abstract: A one-step method and compositions for stabilization of heavy metals, acid gas removal and pH control in hazardous and toxic solid, semi-solid, liquid and/or gaseous matrices using a mixture of reactive agents in a single product, for the broader purpose of enhancing environmental pollution control, prevention and remediation are described. The product contains sulfonated calcium aluminum magnesium phosphate. This material may be used alone or in combination with magnesium sulfite and/or hydroboracite.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: February 17, 1998
    Assignee: Bhat Industries, Inc.
    Inventor: Vasanth K. Bhat
  • Patent number: 5413975
    Abstract: Large zeolite and zeolite-like molecular sieve crystals of from 3 to 500 .mu.m are fixed on moldings by a process in which an adhesion promoter is used or the moldings are softened.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: May 9, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Mueller, Wolfgang Hoelderich, Hans D. Schaefer, Ulrich Eiden, Norbert Woessner
  • Patent number: 5385689
    Abstract: Scavenger compositions useful for purifying process gas streams, such as process gas streams, such as hydrogen, nitrogen, noble gases, diborane, and hydride gases from Groups IVA-VIA of the Periodic Table, such as arsine, phosphine, silane, germane, hydrogen selenide, and hydrogen telluride, and mixtures thereof, to remove water, oxygen, and other oxidant and Lewis acid impurities therefrom, such scavenger comprising a porous, high surface area inert support having thereon an active scavenging species, formed by the deposition on the support of a Group IA metal and pyrolysis thereof at a selected elevated temperature on said support.
    Type: Grant
    Filed: June 29, 1993
    Date of Patent: January 31, 1995
    Assignee: Novapure Corporation
    Inventors: Glenn M. Tom, James V. McManus
  • Patent number: 5340553
    Abstract: A method is provided for removing residual amounts of oxygen and water vapor from the controlled atmosphere of an enclosed chamber. A small volume of high-purity silicon is heated in a crucible placed inside the chamber. The silicon is typically heated with a power source separate from that used for heating the chamber and its primary contents. The heated silicon functions as an effective oxygen getter for removing residual oxygen and water vapor from the controlled atmosphere before and/or during a process conducted in the chamber. Heating the silicon to a molten state can induce beneficial convective stirring that keeps the silicon surface fresh for effective, efficient, and continuous capturing of oxygen.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: August 23, 1994
    Assignee: Rockwell International Corporation
    Inventor: James E. Huffman
  • Patent number: 4898845
    Abstract: A new method for the use of microcrystallites of various materials as catalysts. The materials include metals, metal alloys and mixtures, and intermetallic compounds all of which are used as heterogeneous catalysts on porous supports. The method is different in that the microcrystallites are dispersed in molten salts which are to be used as a thin film coated on the internal surface of porous supports.
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: February 6, 1990
    Assignee: University of Iowa Research Foundation
    Inventors: Ravindra Datta, Darrell P. Eyman