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| Number | Title | Issue Date |
| 7922996 | Zeolite compositions and preparation and use thereof This invention relates to novel compositions of zeolites or microporous metallosilicates characterized by a continuous spatial distribution of the metal and silicon in the crystals and characterized by a crystal surface enriched in silicon relative to the internal p... | 04/12/2011 |
| 7922995 | Zeolite compositions and preparation and use thereof This invention relates to novel compositions of zeolites or microporous metallosilicates characterized by a continuous spatial distribution of the metal and silicon in the crystals and characterized by a crystal surface enriched in silicon relative to the internal p... | 04/12/2011 |
| 7635462 | Method of making porous crystalline materials The present invention relates to new methods of making crystalline materials isostructural to ITQ-21, as well as to new crystalline materials obtainable by such methods, and their use in hydrocarbon conversion processes. In one of its aspects, the invention relates ... | 12/22/2009 |
| 7575737 | UZM-27 family of crystalline aluminosilicate compositions and a method of preparing the compositions This invention relates to a new family of crystalline aluminosilicate compositions designated the UZM-27 family. These include the species UZM-27P and UZM-27, which have unique structures. UZM-27P is an as synthesized layered composition, while UZM-27 is a calcined ... | 08/18/2009 |
| 7399726 | Process for direct oxidation of propylene to propylene oxide and large particle size titanium silicalite catalysts for use therein Large crystals of titanium silicalite or intergrowths of intergrown smaller crystals, having a mean particle size greater than 2 μm, have been found catalytically effective at commercially reasonable rates for the epoxidation of olefins in the presence of hydrogen ... | 07/15/2008 |
| 7326401 | MWW type zeolite substance, precursor substance therefor, and process for producing these substances A process for easily synthesizing a zeolite substance containing an element having a large ionic radius in the framework at a high ratio. This process comprises the following first to fourth steps: First Step: a step... | 02/05/2008 |
| 7323154 | Titanosilicate, process for its production, and its use in producing oxidized compound A titanosilicate represented by the following compositional formula (1), wherein in the infrared absorption spectrum measured in the dehydrated state, the absorption spectrum has an absorption band having a relative maximum value at 930±15 cm−1: | 01/29/2008 |
| 7316807 | Crystalline composition, preparation and use A porous crystalline composition having a molar composition as follows: YO2:m X2O3:n ZO, wherein Y is a tetravalent element selected from the group consisting of silicon, germanium, tin, titanium and combinations thereof, X is a triv... | 01/08/2008 |
| 7314605 | Microporous crystalline metal silicates and processes for their preparation New bridged layered silicates are disclosed where the bridging groups bridge adjacent silicate layers via oxygen atoms on each silicate layer that are unshared to produce porous three dimensional structures. Methods for making these bridged layered silicates are dis... | 01/01/2008 |
| 7297319 | Aluminosilicate compositions, preparation and use A metalloaluminosilicate composition includes an aluminosilicate composition having an aluminosilicate framework and containing at least one metal, wherein a substantial portion of the metal is incorporated into the aluminosilicate framework. A higher concentration ... | 11/20/2007 |
| 7288237 | Epoxidation catalyst Titanium or vanadium zeolite catalysts are prepared by reacting a titanium or vanadium compound, a silicon source, a templating agent, a hydrocarbon, and a surfactant at a temperature and for a time sufficient to form a molecular sieve. The catalyst is useful in ole... | 10/30/2007 |
| 7271304 | Process and apparatus for the production of diesel fuels by oligomerisation of olefinic feed streams This invention provides a process for the production of diesel boiling range hydrocarbons, the process including at least the steps of obtaining an olefinic feed stream from one or more hydrocarbon producing processes wherein the olefinic feed stream contains branch... | 09/18/2007 |
| 7247601 | Method for making silicate/aluminate sorbent Silicate-based substantially non-hydrated sorbent material comprising predominantly calcium silicate and/or calcium alumino-silicate has an atomic framework at least partially de-calcified in that a plurality of calcium atom sites in atomic framework are vacant. The... | 07/24/2007 |
| 7226575 | Boron-containing molecular sieve CHA A boron-containing molecular sieve having the CHA crystal structure and comprising (1) silicon oxide and (2) boron oxide or a combination of boron oxide and aluminum oxide, iron oxide, titanium oxide, gallium oxide and mixtures thereof is prepared using a quaternary... | 06/05/2007 |
| 7208137 | Aluminum-containing zeolite with IFR structure Zeolites having the IFR structure and containing aluminum in their crystal structure can be made by preparing a reaction mixture comprising a zeolite which is an active source of aluminum oxide, an active source of alkali metal oxide, an active source of an oxide of... | 04/24/2007 |
| 7192900 | Hydrocracking catalyst Hydrocracking catalyst composition comprising an optional metal hydrogenation component supported on a carrier comprising a zeolite of the faujasite structure having a unit cell size in the range of from 24.10 to 24.40 Å, a bulk silica to alumina ratio (SAR) above... | 03/20/2007 |
| 7169291 | Selective hydrocracking process using beta zeolite Increased yields of middle distillate products are obtained in a hydrocracking process by the use of a catalyst containing a beta zeolite. In embodiments, the beta zeolite has not been hydrothermally treated or has been hydrothermally treated at a relatively low tem... | 01/30/2007 |
| 7148391 | Heavy aromatics processing In a process for converting C9+ aromatic hydrocarbons to lighter aromatic products a feed comprising C9+ aromatic hydrocarbons is contacted under transalkylation reaction conditions with a catalyst composition comprising (i) a first molecular s... | 12/12/2006 |
| 7141232 | Preparation of molecular sieves involving spray drying Molecular sieves are prepared by forming a reaction mixture slurry, spray drying the reaction mixture slurry to form particles, and heating the spray dried reaction mixture at a temperature and pressure sufficient to cause crystallization of the molecular sieve. The... | 11/28/2006 |
| 7122164 | Niobate-based octahedral molecular sieves Niobate-based octahedral molecular sieves having significant activity for multivalent cations and a method for synthesizing such sieves are disclosed. The sieves have a net negatively charged octahedral framework, comprising niobium, oxygen, and octahedrally coordin... | 10/17/2006 |
| 7108843 | Molecular sieve SSZ-70 composition of matter and synthesis thereof The present invention relates to new crystalline molecular sieve SSZ-70 prepared using a N,N′-diisopropyl imidazolium cation as a structure-directing agent, methods for synthesizing SSZ-70 and processes employing SSZ-70 in a catalyst. ... | 09/19/2006 |
| 7094722 | NOcatalyst and method of suppressing sulfate formation in an exhaust purification system The activity and durability of a zeolite lean-bum NOx catalyst can be increased by loading metal cations on the outer surface of the zeolite. However, the metal loadings can also oxidize sulfur dioxide to cause sulfate formation in the exhaust. The present invention... | 08/22/2006 |
| 7083776 | Molecular sieve SSZ-71 composition of matter and synthesis thereof The present invention relates to new molecular sieve SSZ-71 prepared using a N-benzyl-1,4-diazabicyclo[2.2.2]octane cation as a structure-directing agent, methods for synthesizing SSZ-71 and processes employing SSZ-71 in a catalyst. ... | 08/01/2006 |
| 7056490 | IM-11 crystalline solid with structure type LTA, and a process for its preparation The invention concerns a IM-11 crystalline solid with structure type LTA, with a neutral framework, having a chemical composition expressed as the anhydrous base in terms of moles of oxide defined by the general formula XO2:mYO2:qR:sF, in which... | 06/06/2006 |
| 7041274 | Aluminosilicate compositions, preparation and use A metalloaluminosilicate composition includes an aluminosilicate composition having an aluminosilicate framework and containing at least one metal, wherein a substantial portion of the metal is incorporated into the aluminosilicate framework. A higher concentration ... | 05/09/2006 |
| 7029650 | Process for making a germanium-zeolite This invention relates to a process for making a germanium-zeolite. The zeolite is preferably a MFI-type structure, most preferably a ZSM-5 MFI zeolite. The germanium-zeolite is synthesized from an aqueous gel containing a silica source, a germanium source, an alumi... | 04/18/2006 |
| 7025948 | ITQ-31 crystalline solid, and a process for its preparation The invention concerns a crystalline solid, designated ITQ-31, which has the X ray diffraction diagram given below. Said solid has a chemical composition, expressed as the anhydrous base in terms of moles of oxide, defined by the general formula XO2: mYO | 04/11/2006 |
| 7022637 | Selective methylation catalyst, method of catalyst manufacture and methylation process Novel catalysts and processes in accordance with the invention can accomplish high selectivity and conversion of naphthalenic compounds such as the conversion of methylnaphthalene (2-MN) or naphthalene to 2,6-dimethylnaphthalene (2,6-DMN). The catalysts are prepared... | 04/04/2006 |
| 7011802 | Synthesis of molecular sieves by hydrothermal treatment with acid Molecular sieves containing structure directing agents are treated by heating the SDA-containing molecular sieve at a temperature and for a time sufficient to remove the SDA from the molecular sieve, followed by heating the molecular sieve in an aqueous, acidic medi... | 03/14/2006 |
| 7008610 | AEI-Type zeolite, its synthesis and its use in the conversion of oxygenates to olefins A crystalline material is described that has an AEI framework type, wherein the material, in its calcined, anhydrous form, has a composition involving the molar relationship: (n)X2O3:YO2, wherein X is a tri... | 03/07/2006 |
| 6991774 | Rare earth zeolite Y and the preparation process thereof The present invention discloses a high stability rare earth zeolite Y with high rare earth and the preparation process thereof, which zeolite has a content of rare earth of 4–15 wt %, a unit cell constant of 2.450–2.458 nm, a differential thermal collapsed tempe... | 01/31/2006 |
| 6982074 | High silica zeolites: UZM-5HS A family of crystalline aluminosilicate zeolites designated UZM-5HS and derived from UZM-5 have been synthesized. The aluminum content of the UZM-5HS is lower than that of the starting UZM-5 thus changing its ion exchange capacity and acidity. These UZM-5HS are repr... | 01/03/2006 |
| 6977321 | Production of propylene A process for the production of propylene from an olefinic feedstock containing at least one olefin of C4 or greater, the process comprising contacting the olefinic feedstock with a catalyst of the MFI-type having a silicon/aluminum atomic ratio of at lea... | 12/20/2005 |
| 6956006 | Modified titanium dioxide and a method for its preparation The invention relates to a composite material comprising silicon and titanium dioxide characterized by an enhanced thermal and hydrothermal stability of the pore structure. The composite is obtainable by precipitating titanium hydroxide from an aqueous solution cont... | 10/18/2005 |
| 6951968 | Production of olefins A process for the production of olefins by catalytic cracking, the process comprising feeding a hydrocarbon feedstock containing at least one olefin of C4 or greater over a MFI-type crystalline silicate catalyst to produce an effluent containing at least ... | 10/04/2005 |
| 6936239 | Process for the preparation of doped pentasil-type zeolites using doped faujasite seeds Process for the preparation of doped pentasil-type zeolite, which process comprises the steps of: a) preparing an aqueous precursor mixture comprising a silicon source, an aluminum source, doped faujasite seeds, and another type of... | 08/30/2005 |
| 6890511 | Crystalline aluminosilicate zeolitic composition: UZM-15 An aluminosilicate zeolite and substituted versions designated UZM-15 have been synthesized. These zeolites are prepared using an organoammonium cation as a template in which at least one organic group has at least 2 carbon atoms. An example of such a cation is diet... | 05/10/2005 |
| 6849248 | Porous crystalline material (zeolite ITQ-21), the preparation method thereof and use of same in the catalytic conversion of organic compounds A porous crystalline material (ITQ-21) which in its calcined form has the chemical composition X2O3:nYO2:mZO2 wherein (n+m) is at least 5, X is a trivalent element, Z is Ge, Y is at least one tetravalen... | 02/01/2005 |
| 6843978 | Microporous materials (TIQ-6 and METIQ-6) of high surface area active in oxidation reactions The present invention refers to a microporous material formed by oxygen, silicon, germanium, aluminum, boron, gallium, zirconium and/or titanium in its composition, called TIQ-6, to its catalytic applications in oxidation reactions, and to a method of the TIQ-6 mate... | 01/18/2005 |
| 6841144 | Method for the production of a titanium-containing zeolite The present invention concerns a method for the production of a titanium-containing zeolite whereby a synthesis gel is formed by combining and hydrolysing a hydrolysable silicon compound, a hydrolysable titanium compound and a basic quaternary ammonium compound in a... | 01/11/2005 |
