And Silicon Containing Patents (Class 502/214)
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Publication number: 20040180780Abstract: This invention provides oxide matrix compositions that can be utilized in catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. The oxide matrix composition comprises residual mineral components and an oxide precursor. The catalyst composition comprises contacting an organometal compound, an organoaluminum compound, and an oxide matrix composition. Processes for producing the oxide matrix composition and the catalyst composition are also provided.Type: ApplicationFiled: October 10, 2003Publication date: September 16, 2004Inventors: Max P. McDaniel, Joseph S. Shveima, James L. Smith, Kathy S. Collins, Elizabeth A. Benham, Anthony P. Eaton, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
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Patent number: 6787501Abstract: The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to making a formulated molecular sieve catalyst composition from a slurry of formulation composition of a synthesized molecular sieve that has not been fully dried, a binder and an optional matrix material. In a more preferred embodiment, the weight ratio of the binder to the molecular sieve and/or the solid content of the slurry is controlled to provide an improved attrition resistant catalyst composition, particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: GrantFiled: June 24, 2002Date of Patent: September 7, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Stephen N. Vaughn, Yun-feng Chang, Luc R. M. Martens, Kenneth R. Clem, Machteld M. Mertens, Albert E. Schweizer
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Publication number: 20040157732Abstract: The invention is directed to a method of stabilizing metalloaluminophosphate molecular sieves and catalysts derived therefrom. In particular, the invention is directed to a method of treating such molecular sieves with one or more nitrogen containing compounds having a kinetic diameter greater than the average pore size of the activated molecular sieve and selected from the group consisting of amines, monocyclic heterocyclic compounds, organonitrile compounds and mixtures thereof to chemisorbed and/or physisorbed the compound onto the molecular sieve. The compounds may be easily desorbed before or during use and after storage. The invention is also directed to formulating the molecular sieve into a catalyst useful in a process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: ApplicationFiled: December 16, 2003Publication date: August 12, 2004Inventors: Filip Mees, Etienne Vansant
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Patent number: 6770590Abstract: An exhaust gas emission purifying catalyst has a catalyst layer (20) supported on a carrier (10). The catalyst layer includes a composite oxide, in which noble metals and occluding agents are mixed in order to inhibit the movement of the occluding agents even at high temperatures and to prevent deterioration of the purifying performance of the catalyst after operation at a high temperature. The composite oxide is comprised of silicon (Si) and at least one of cobalt (Co), zirconium (Zr), iron (Fe), and manganese (Mn).Type: GrantFiled: June 7, 2002Date of Patent: August 3, 2004Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventor: Tetsuya Watanabe
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Publication number: 20040147793Abstract: Small particle size SAPO-34 is obtained by using a tetraalkyl orthosilicate as the silicon source.Type: ApplicationFiled: January 16, 2004Publication date: July 29, 2004Inventors: Machteld Mertens, Karl G. Strohmaier
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Patent number: 6767858Abstract: The invention is directed to a method of synthesizing aluminophosphate and silicoaluminophosphate molecular sieves and in particular to the synthesis of aluminophosphate and silicoaluminophosphate molecular sieves using N-methylethanolamine as template with or without a source of fluoride. The use of N-methylethanolamine as template results in good quality AlPO4 of CHA framework type and SAPO molecular sieves of CHA framework type with low levels of silicon in high yield.Type: GrantFiled: February 20, 2003Date of Patent: July 27, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Guang Cao, Matu J. Shah
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Patent number: 6759360Abstract: A method for the post synthesis modification of molecular sieves with organometallic reagents. The method may be used for large pore molecular sieves and small pore molecular sieves, such as SAPO-34. SAPO-34 is a useful catalyst for the conversion of oxygenates, such as methanol, to olefins. Post synthesis organometallic modification improves catalyst performance and increases light olefin selectivity in the conversion of methanol to olefins.Type: GrantFiled: March 29, 2002Date of Patent: July 6, 2004Assignee: ExxonMobil Chemical Patent Inc.Inventors: Kun Wang, Guang Cao, Michael Joseph Brennan, Karl G. Strohmaier, Richard B. Hall
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Patent number: 6756516Abstract: The invention is directed to a method of stabilizing metalloaluminophosphate molecular sieves and catalysts derived therefrom. In particular, the invention is directed to a method of treating such molecular sieves with one or more nitrogen containing compounds selected from the group consisting of amines, monocyclic heterocyclic compounds, organonitrile compounds and mixtures thereof to chemisorbed and/or physisorbed the compound onto the molecular sieve. The compounds may be easily desorbed before or during use and after storage. The invention is also directed to formulating the molecular sieve into a catalyst useful in a process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: GrantFiled: March 29, 2002Date of Patent: June 29, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Filip Mees, Etienne Vansant
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Publication number: 20040121902Abstract: The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to a catalyst composition comprising a molecular sieve having a framework including at least [AlO4] and [PO4] tetrahedral units, at least one of a binder and a matrix material and at least one phosphorus compound separate from said molecular sieve wherein, after calcination at 760° C. for 3 hours, said catalyst composition has a microporous surface area in excess of 20% of the microporous surface area of said molecular sieve after calcination at 650° C. in nitrogen for 2 hours. The catalyst composition is particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: ApplicationFiled: December 20, 2002Publication date: June 24, 2004Inventors: Yun-Feng Chang, Stephen N. Vaughn, Luc Roger Marc Martens, Jeffrey Wayne Sprinkle, Ian Nathaniel Walker
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Publication number: 20040116762Abstract: The invention is directed to a method for modifying a microporous metalloaluminophosphate molecular sieve, the method comprising the steps of a) introducing a compound containing at least one M-X group within the cages of said microporous molecular sieve; and b) reacting said compound containing at least one M-X group with the acid groups located in the cages of the molecular sieve, wherein the compound containing at least one M-X group is selected from the group consisting of compounds of formula MX3, compounds of formula M2X6, and mixtures thereof, M being a metal belonging to Group 13 of the Periodic Table, and each X independently being a hydrogen or halogen atom. Preferably, X is a hydrogen atom. The present invention also relates to modified metalloaluminophosphate molecular sieves, preferably modified silicoaluminophosphate molecular sieves, as well as to the use of these modified molecular sieves in catalytic processes, such as processes for the conversion of oxygenated hydrocarbon feedstocks.Type: ApplicationFiled: March 24, 2003Publication date: June 17, 2004Inventors: Filip Mees, Etienne Vansant, Kun Wang, Richard B. Hall, Marcel Johannes Janssen, Luc Roger Marc Martens, An Verberckmoes, Guang Cao
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Publication number: 20040116761Abstract: The invention is directed to a method for modifying a microporous metalloaluminophosphate molecular sieve, the method comprising the steps of a) introducing a metal hydride compound within the cages of said microporous molecular sieve, and b) reacting said metal hydride compound with the acid groups located in the cages of the molecular sieve, wherein the metal hydride compound is selected from the group consisting of hydrides of metals of Groups 1 and 2 of the Periodic Table, compounds of formula M1M2H4 and mixtures thereof, M1 being a metal belonging to Group 13 of the Periodic Table and M2 being a metal belonging to Group 1 of the Periodic Table. The invention also relates to modified metalloaluminophosphate molecular sieves, to catalyst particles containing them and the use of the modified metalloaluminophosphate molecular sieves in catalytic processes.Type: ApplicationFiled: December 12, 2002Publication date: June 17, 2004Inventor: Kun Wang
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Publication number: 20040116282Abstract: The invention is directed to a method for modifying a microporous metalloaluminophosphate molecular sieve, the method comprising the steps of a) introducing a compound containing at least one M-X group within the cages of said microporous molecular sieve; and b) reacting said compound containing at least one M-X group with the acid groups located in the cages of the molecular sieve, wherein the compound containing at least one M-X group is selected from the group consisting of compounds of formula MX3, compounds of formula M2X6, and mixtures thereof, M being a metal belonging to Group 13 of the Periodic Table, and each X independently being a hydrogen or halogen atom. Preferably, X is a hydrogen atom. The present invention also relates to modified metalloaluminophosphate molecular sieves, preferably modified silicoaluminophosphate molecular sieves, as well as to the use of these modified molecular sieves in catalytic processes, such as processes for the conversion of oxygenated hydrocarbon feedstocks.Type: ApplicationFiled: December 12, 2002Publication date: June 17, 2004Inventors: Filip Mees, Etienne Vansant, Kun Wang, Richard B. Hall, Marcel Johannes Janssen, Luc Roger Marc Martens, An Amandine Verberckmoes, Guang Cao
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Patent number: 6749769Abstract: The disclosed invention relates to novel crystalline compositions which may be obtained by doping the alpha (&agr;) form of AlPO4 ceramics, which find use as piezoelectric materials, stable supports for catalysts, biotechnology uses, and the like.Type: GrantFiled: March 6, 2002Date of Patent: June 15, 2004Assignee: E. I. du Pont de Nemours and CompanyInventor: Pratibha Laxman Gai
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Patent number: 6743747Abstract: Disclosed is a crystalline silicoaluminophosphate molecular sieve comprising a porous framework structure and at least one single ring aromatic compound within the porous framework structure. The silicoaluminophosphate molecular sieve is used to convert oxygenate feedstock to olefin product. The olefin product is high in ethylene and propylene content, with a high selectivity to ethylene. The silicoaluminophosphate molecular sieve can be included with a binder and other materials in finished catalyst form.Type: GrantFiled: February 24, 2000Date of Patent: June 1, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Teng Xu, Jeffrey L. White
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Publication number: 20040082825Abstract: This invention relates to a process for converting an oxygenate feedstock to light olefins using a crystalline metalloaluminophosphate molecular sieve having a high metal content and a small particle size. It also relates to crystalline metalloaluminophosphate molecular sieves with high metal content and a small particle size.Type: ApplicationFiled: October 29, 2002Publication date: April 29, 2004Inventors: Stephen H. Brown, Richard B. Hall, Karl G. Strohmaier
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Publication number: 20040082466Abstract: The invention is directed to a method of synthesizing a molecular sieve. In particular, the invention is directed to a method for synthesizing a molecular sieve, especially a silicoaluminophosphate molecular sieve, in the presence of a templating agent and a polymeric base. The invention is also directed to formulating the molecular sieve into a catalyst useful in a process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: ApplicationFiled: October 22, 2003Publication date: April 29, 2004Inventors: Guang Cao, Matu J. Shah
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Publication number: 20040082467Abstract: A silicon-containing alumina support, a process for preparing the support, and a catalyst containing the support are provided. The alumina support includes an additive silicon enriched on its surface, with the difference between the atomic ratio of silicon to aluminum on the surface of alumina support and that of the alumina support is at least 0.10. The process for preparing the silicon-containing alumina support comprises adding a nanometer silicon compound. The inventive alumina support can be used in manufacturing a catalyst for hydrotreating hydrocarbons with good physico-chemical properties and performance.Type: ApplicationFiled: October 9, 2003Publication date: April 29, 2004Applicants: China Petroleum & Chemical Corporation, Fushun Research Institute of Petroleum and Petrochemicals Sinopec Corp.Inventors: Dengling Wei, Shaozhong Peng
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Publication number: 20040064008Abstract: A catalyst composition comprising molecular sieve particles in a matrix, at least 75% of the pore volume of the composition, as measured by mercury porosimetry, having a pore size of at most 20 nm, as well as processes for the manufacture of such catalysts and their use as catalysts, especially for methanol to hydrocarbon processes. These catalyst compositions have a high proportion of mesopores (pores of at most 20 nm as measured by mercury porosimetry).Type: ApplicationFiled: September 30, 2002Publication date: April 1, 2004Inventors: Torsten Maurer, Bettina Kraushaar-Czarnetzki
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Patent number: 6710009Abstract: Catalysts useful for producing methylamines and having practical catalyst life and large selectivity for dimethylamine comprise crystalline silicoaluminophosphate molecular sieves which have a molar ratio of silicon atom to aluminum atom in the range of 0.01-0.30.Type: GrantFiled: July 10, 2002Date of Patent: March 23, 2004Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Toshio Hidaka, Katsumi Higuchi, Takeshi Kawai
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Patent number: 6710008Abstract: Disclosed is a method for making molecular sieve catalyst particles. Dried molecular sieve catalyst particles are used to make the catalyst. The dried molecular sieve catalyst particles are put into an aqueous solution and stirred to make a slurry. The slurry is dried to make the molecular sieve catalyst particles. Optionally, the dried molecular sieve catalyst particles made from the slurry are calcined.Type: GrantFiled: January 17, 2002Date of Patent: March 23, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Yun-Feng Chang, Stephen N. Vaughn, Jeffery W. Sprinkle, Fran A. Shipley, Kenneth R. Clem
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Publication number: 20040052726Abstract: A structure directing agent is removed from a microporous solid at a temperature below the temperature that would cause the structure directing agent to decompose by cleaving the structure directing agent within the pores of the microporous solid, at a temperature below the temperature that would cause the structure directing agent to decompose, into two or more fragments and removing the fragments from the pores of the microporous solid at a temperature below the temperature that would cause the structure directing agent or its fragments to decompose.Type: ApplicationFiled: June 12, 2003Publication date: March 18, 2004Inventors: Mark E. Davis, Hyunjoo Lee, Stacey I. Zones
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Patent number: 6696032Abstract: Small particle size SAPO-34 is obtained by using a tetraalkyl orthosilicate as the silicon source.Type: GrantFiled: November 29, 2001Date of Patent: February 24, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Machteld Mertens, Karl G. Strohmaier
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Publication number: 20040030213Abstract: The invention relates to a conversion process of a feedstock, preferably an oxygenated feedstock, into one or more olefin(s), preferably ethylene and/or propylene, in the presence of a molecular sieve catalyst composition that includes a molecular sieve and a Group 3 metal oxide and/or an oxide of a Lanthanide or Actinide series element. The invention is also directed to methods of making and formulating the molecular sieve catalyst composition useful in a conversion process of a feedstock into one or more olefin(s).Type: ApplicationFiled: August 9, 2002Publication date: February 12, 2004Inventors: Doron Levin, James Clark Vartuli
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Patent number: 6680278Abstract: The invention is directed to a method of synthesising silicoaluminophosphate molecular sieves using synthesis templates that contain at least one dimethylamino moiety. The use of dimethylamino moiety containing templates results in good quality SAPO molecular sieves of CHA framework type.Type: GrantFiled: June 12, 2002Date of Patent: January 20, 2004Assignee: ExxonMobil Chemical Patents, Inc.Inventors: Guang Cao, Matu J. Shah
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Publication number: 20030232718Abstract: The invention is directed to a method of synthesising silicoaluminophosphate molecular sieves using synthesis templates that contain at least one dimethylamino moiety. The use of dimethylamino moiety containing templates results in good quality SAPO molecular sieves of CHA framework type.Type: ApplicationFiled: June 12, 2002Publication date: December 18, 2003Inventors: Guang Cao, Matu J. Shah
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Publication number: 20030231999Abstract: The invention is directed to a method for preparing microporous aluminophosphate or silicoaluminophosphate molecular sieves having the CHA framework type, the process comprising the steps of a) forming a reaction mixture comprising a source of aluminum, a source of phosphorus, optionally a source of silicon, at least one source of fluoride ions and at least one template containing one or more N,N-dimethylamino moieties, b) inducing crystallization of aluminophosphate and/or silicoaluminophosphate molecular sieve from the reaction mixture; c) recovering aluminophosphate and/or silicoaluminophosphate molecular sieve from the reaction mixture. The invention also relates to the molecular sieves obtained by this method and to molecular sieve catalyst compositions containing these molecular sieves.Type: ApplicationFiled: June 12, 2002Publication date: December 18, 2003Inventors: Guang Cao, Matu J. Shah, Karl G. Strohmaier, Richard B. Hall
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Patent number: 6664206Abstract: This invention provides a method of reactivating a catalyst for methacrylic acid production, which catalyst is used in production of methacrylic acid through vapor-phase oxidation of methacrolein or vapor-phase oxidative dehydrogenation of isobutyric acid, contains P and Mo, and exhibits reduced activity. The process comprises treating the catalyst, whose activity level has dropped (deteriorated catalyst), with a gas containing a nitrogen-containing heterocyclic compound (e.g., pyridine, piperidine, piperazine, quinoline).Type: GrantFiled: September 21, 2001Date of Patent: December 16, 2003Assignee: Nippon Shokubai Co., Ltd.Inventors: Hiroto Kasuga, Eiichi Shiraishi
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Patent number: 6660682Abstract: The invention is directed to a method of synthesizing a molecular sieve. In particular, the invention is directed to a method for synthesizing a molecular sieve, especially a silicoaluminophosphate molecular sieve, in the presence of a templating agent and a polymeric base. The invention is also directed to formulating the molecular sieve into a catalyst useful in a process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: GrantFiled: November 30, 2001Date of Patent: December 9, 2003Assignee: Exxon Mobil Chemical Patents Inc.Inventors: Guang Cao, Matu J. Shah
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Patent number: 6638892Abstract: A process for the conversion of syngas by contact of syngas under conversion conditions with catalyst having as components zinc oxide, copper oxide, aluminum oxide, Y zeolite and clay in which (A) in a one step process for conversion of syngas to dimethyl ether, the catalyst has as components an extruded mixture of zinc oxide, copper oxide, gamma aluminum oxide, Y zeolite and clay; (B) in a two step process for conversion of syngas to light olefins, a catalyst system is employed that has in the first step a catalyst mixture of zinc oxide, copper oxide, aluminum oxide, Y zeolite and clay and the catalyst employed in the second step is SAPO-34; SAPO-34 modified with lanthanum(III) nitrate hexahydrate; SAPO-34 modified with magnesium nitrate hexahydrate; SAPO-34 modified with tributyl borate or SAPO-34 modified with triethyl phosphate or (C) in a two step process for conversion of syngas to light olefins, the pressure on the effluent from the contact of syngas with a mixture of zinc oxide, copper oxide, aluminumType: GrantFiled: April 18, 2002Date of Patent: October 28, 2003Assignee: ConocoPhillips CompanyInventors: An-hsiang Wu, Jianhua Yao, Charles A. Drake
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Publication number: 20030187313Abstract: A method for the post synthesis modification of molecular sieves with organometallic reagents. The method may be used for large pore molecular sieves and small pore molecular sieves, such as SAPO-34. SAPO-34 is a useful catalyst for the conversion of oxygenates, such as methanol, to olefins. Post synthesis organometallic modification improves catalyst performance and increases light olefin selectivity in the conversion of methanol to olefins.Type: ApplicationFiled: March 29, 2002Publication date: October 2, 2003Inventors: Kun Wang, Guang Cao, Michael Joseph Brennan, Karl G. Strohmaier, Richard B. Hall
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Publication number: 20030187312Abstract: The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to a making a molecular sieve catalyst composition by forming a slurry by combining a molecular sieve, a binder and a matrix material, wherein the slurry has a pH, above or below the isoelectric point of the molecular sieve. The catalyst composition has improved attrition resistance, particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: ApplicationFiled: June 24, 2002Publication date: October 2, 2003Inventors: Yun-Feng Chang, Stephen N. Vaughn, Luc R.M. Martens, Joseph E. Baumgartner, Stuart L. Soled, Kenneth R. Clem
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Patent number: 6627577Abstract: There is provided catalysts and conversion processes for converting hydrocarbons using the catalysts. The catalysts comprises a first alumino-phosphospho-molecular sieves and a binder comprising a second alumino-phopho-molecular sieves. Exemplary conversion processes include the conversion of oxygenates to olefins, dewaxing, reforming, dealkylation, dehydrogenation, transalkylation, alkylation, and isomerization.Type: GrantFiled: May 31, 2002Date of Patent: September 30, 2003Assignee: ExxonMobil Chemical Patents Inc.Inventors: Robert Scott Smith, Gary David Mohr, Jannetje Maatje van den Berge
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Publication number: 20030181322Abstract: The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to a molecular sieve catalyst composition of a molecular sieve, a binder and a matrix material, wherein the weight ratio of the binder to the molecular sieve is controlled to provide an improved attrition resistant catalyst composition, particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: ApplicationFiled: June 24, 2002Publication date: September 25, 2003Inventors: Yun-Feng Chang, Stephen N. Vaughn, Luc R.M. Martens, Kenneth R. Clem
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Publication number: 20030176753Abstract: The invention relates to a catalyst composition, a method of making the same and its use in the conversion of a feedstock, preferably an oxygenated feedstock, into one or more olefin(s), preferably ethylene and/or propylene The catalyst composition comprises a molecular sieve and at least one oxide of a metal selected from Group 3 of the Periodic Table of Elements, the Lanthanide series of elements and the Actinide series of elements.Type: ApplicationFiled: February 10, 2003Publication date: September 18, 2003Inventors: Doron Levin, James Clark Vartuli
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Publication number: 20030176752Abstract: The invention relates to a catalyst composition, a method of making the same and its use in the conversion of a feedstock, preferably an oxygenated feedstock, into one or more olefin(s), preferably ethylene and/or propylene The catalyst composition comprises a molecular sieve and at least one oxide of a metal from Group 4, optionally in combination with at least one metal from Groups 2 and 3, of the Periodic Table of Elements.Type: ApplicationFiled: February 10, 2003Publication date: September 18, 2003Inventors: Doron Levin, James Clark Vartuli
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Patent number: 6620983Abstract: The invention is directed to a method of synthesizing aluminophosphate or silicoaluminophosphate molecular sieves and in particular to the synthesis of silicoaluminophosphate molecular sieves using synthesis templates in combination with a source of fluoride comprising at least two fluoride substituents. The use of such fluorine containing compounds results in good quality low silica SAPO molecular sieves of CHA framework type.Type: GrantFiled: June 12, 2002Date of Patent: September 16, 2003Assignee: ExxonMobil Chemical Patents Inc.Inventors: Guang Cao, Matu J. Shah, Karl G. Strohmaier, Richard B. Hall
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Publication number: 20030171633Abstract: The invention relates to a catalyst composition, a method of making the same and its use in the conversion of a feedstock, preferably an oxygenated feedstock, into one or more olefin(s), preferably ethylene and/or propylene The catalyst composition comprises a molecular sieve and at least one metal oxide, such as a magnesium oxide that, when saturated with acetone and contacted with said acetone for 1 hour at 25° C., converts more than 80% of the acetone.Type: ApplicationFiled: February 10, 2003Publication date: September 11, 2003Inventors: Teng Xu, Stephen N. Vaughn, Richard B. Hall, Doron Levin, James Clark Vartuli
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Publication number: 20030153799Abstract: In SAPO manufacture, handling of the synthesis mixture is facilitated by providing an initial aluminium-containing aqueous slurry with an H2O:Al2O3 weight ratio of 3:1 to 8:1.Type: ApplicationFiled: February 13, 2002Publication date: August 14, 2003Inventors: Machteld M. Mertens, Brita Engels
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Publication number: 20030149321Abstract: The invention is directed to a method of stabilizing metalloaluminophosphate molecular sieves and catalysts derived therefrom. In particular, the invention is directed to a method of treating such molecular sieves with chemisorbed ammonia, which may be easily desorbed before or during use and after storage. The invention is also directed to formulating the molecular sieve into a catalyst useful in a process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.Type: ApplicationFiled: November 15, 2002Publication date: August 7, 2003Inventors: Filip Mees, Etienne Vansant, Marcel Johannes Janssen, Luc R.M. Martens
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Publication number: 20030139636Abstract: The invention provides a method for converting an olefinic hydrocarbon feedstock to propylene comprising: contacting a hydrocarbon feedstock under catalytic cracking conditions with a catalyst comprising a catalyst selected from the group consisting of SAPO catalysts, MeAPO catalysts, MeASPO catalysts, ELAPO catalysts, ELASPO catalysts, rare earth exchanged catalysts from any of the preceding groups, and mixtures thereof, under cracking conditions to selectively produce propylene. The invention further provides a method for stabilizing a catalyst to steam from the foregoing group by ion exchange with a rare earth metal.Type: ApplicationFiled: January 21, 2003Publication date: July 24, 2003Inventors: Tan-Jen Chen, S. Mark Davis, Luc R. M. Martens, Marcel J. G. Janssen, Philip A. Ruziska
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Patent number: 6596156Abstract: A SAPO-11 silicoaluminopihosphate molecular sieve, its preparation method, and a catalyst containing the same are disclosed. The X-ray diffraction data of the molecular sieve before removing the template by calcination are as listed in Table 1. The molar composition of this molecular sieve after removing the template by calcination expressed in anhydrous oxides is Al2O3: yP2O5: zSiO2, in which y has a value of 0.60-1.20, and z has a value of 0.05-1.3, characterized in that after removing the template by calcination, its X-ray diffraction data are as listed in Table 3, and that the crystal structures of the molecular sieve before and after removing the template by calcination are substantially the same. The catalyst is composed of 10-85% by weight of said SAPO-11 molecular sieve, 0.05-1.5% by weight of Pd or Pt, and the balance is alumina.Type: GrantFiled: September 5, 2001Date of Patent: July 22, 2003Assignees: China Petroleum and Chemical Corporation, Research Institute of Petroleum Processing, SinopecInventors: Fengmei Zhang, Yucming Liu, Xingtian Shu, Weidong Wang, Fengming Qin
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Publication number: 20030135079Abstract: Disclosed is a method for making molecular sieve catalyst particles. Dried molecular sieve catalyst particles are used to make the catalyst. The dried molecular sieve catalyst particles are put into an aqueous solution and stirred to make a slurry. The slurry is dried to make the molecular sieve catalyst particles. Optionally, the dried molecular sieve catalyst particles made from the slurry are calcined.Type: ApplicationFiled: January 17, 2002Publication date: July 17, 2003Inventors: Yun-Feng Chang, Stephen N. Vaughn, Jeffery W. Sprinkle, Fran A. Shipley, Kenneth R. Clem
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Publication number: 20030129128Abstract: The present invention provides a method for the synthesis of MeAPO molecular sieves which includes the following steps: providing a source of alumina, a source of phosphorus, water, and a template suitable for forming a MeAPO molecular sieve; providing a source of metal (Me) including metal particles, the metal particles measuring, in their largest dimension, equal to or less than five nanometers; providing a water soluble organic solvent capable of solubilizing the source of metal; forming a synthesis mixture from the source of alumina, the source of phosphorus, the water, the template, the source of metal, and the solvent; and forming a MeAPO molecular sieve from the synthesis mixture.Type: ApplicationFiled: January 21, 2003Publication date: July 10, 2003Inventors: Karl G. Strohmaier, David E.W. Vaughan
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Patent number: 6583330Abstract: New catalysts that contain heteropolyanions of the 12-tungstophosphoric acid or the 12-tungstomolybdic acid, and, for some of these, at least one metal of group VIII, and that are deposited on substrates that develop a specific surface area and a high pore volume, such as zirconium oxide (ZrO2), silicas, silica-aluminas or aluminas, are used in particular in isomerization of paraffinic fractions that contain in large part n-paraffins that have, for example, 4 to 8 carbon atoms per molecule and in aliphatic alkylation of isoparaffins (for example isobutane and/or isopentane) by at least one olefin that comprises, for example, 2 to 6 carbon atoms per molecule (C2 to C6).Type: GrantFiled: June 26, 2000Date of Patent: June 24, 2003Assignee: Institut Francais du PetroleInventors: Christine Travers, Maryline Delage, Eric Benazzi, Jean-François Joly
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Patent number: 6576581Abstract: This invention is drawn to a catalyst system comprising two or more molecular sieves, including at least one non-zeolitic molecular sieve and one zeolitic aluminosilicate, having specified contrasting pore structures and to a process for isomerizing a non-equilibrium mixture of xylenes and ethylbenzene using the subject catalyst system to obtain an improved yield of para-xylene from the mixture relative to prior-art processes.Type: GrantFiled: December 21, 2000Date of Patent: June 10, 2003Assignee: UOP LLCInventors: Sanjay B. Sharma, Aaron J. Imrie
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Publication number: 20030104931Abstract: Small particle size SAPO-34 is obtained by using a tetraalkyl orthosilicate as the silicon source.Type: ApplicationFiled: November 29, 2001Publication date: June 5, 2003Inventors: Machteld Mertens, Karl G. Strohmaier
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Patent number: 6566293Abstract: The present invention is directed to a catalyst composition for FCC which has high efficiency in the production of light olefins while maintaining the bottoms conversion. The catalyst composition is prepared by: a) ex situ activating an olefin-selective zeolite with at least 10 wt % of a phosphorus-containing compound, calculated as P2O5 based on the total amount of olefin-selective zeolite. b) combining the activated olefin-selective zeolite with 10-40 wt % catalytic cracking component, binder, and 0-25 wt % silica in a slurry, so that the total amount of amorphous alumina present in the final catalyst composition is at least 10 wt %, and c) spray-drying the slurry to form catalyst particles.Type: GrantFiled: November 17, 2000Date of Patent: May 20, 2003Assignee: Akzo Nobel N.V.Inventors: Eelco Titus Carel Vogt, Augusto R. Quinones, Paul O'Connor
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Publication number: 20030092951Abstract: The invention is directed to a method for making a silicoaluminophosphate (SAPO) molecular sieve from a reaction mixture comprising components present in amounts sufficient to form the SAPO, the reaction mixture having a first pH. The method comprises the steps of: adding an acid to the reaction mixture after the reaction mixture undergoes a change in pH from the first pH; and crystallizing the SAPO from the reaction mixture. The present invention is also directed to a silicoaluminophosphate molecular sieve made by this process.Type: ApplicationFiled: December 31, 2002Publication date: May 15, 2003Inventors: Machteld M. Mertens, Brita Engels, Ronald G. Searle, Grigore Pop, Irina Rodica Tamas, Rodica Ganea, Ruxandra Birjega
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Publication number: 20030078159Abstract: Disclosed is a method for the manufacture of silicoaluminophosphate (SAPO) and/or aluminophosphate (ALPO) molecular sieves. The method includes maintaining the slurry of the as crystallized molecular sieve under substantially static conditions when stored after substantially complete crystallization and prior to recovery of the product.Type: ApplicationFiled: October 23, 2001Publication date: April 24, 2003Inventors: Machteld Maria Mertens, Brita Engels
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Publication number: 20030068270Abstract: ETS-4 crystalline titanium silicate is produced so as to be enriched in at least one polymorph thereof which contains channels which interpenetrate the crystal lattice in both the b- and c-directions. A process of producing such a polymorph and enriched ETS-4 titanium silicate comprises the addition of a wetting agent to the reaction mixture.Type: ApplicationFiled: September 4, 2002Publication date: April 10, 2003Inventors: Steven M. Kuznicki, Richard M. Jacubinas, Tadeuz W. Langner