Patent application number | Description | Published |
20080253959 | Synthesis crystalline molecular sieves - In a process for synthesizing a crystalline molecular sieve, an aqueous synthesis mixture is produced capable of forming the crystalline molecular sieve. Crystallization of the synthesis mixture is induced so as to form crystals of said molecular sieve in the synthesis mixture and, when crystallization is complete, the molecular sieve crystals are allowed or caused to separate from the remainder of the synthesis mixture to produce a solid phase comprising said molecular sieve crystals and a supernatant liquid phase. The supernatant liquid phase is then decanted from the solid phase to recover the molecular sieve crystals and the crystals are dried without initially being subjected to washing or filtration. | 10-16-2008 |
20090112036 | Selective oligomerization of isobutene - A process for oligomerizing isobutene includes contacting a feedstock including isobutene with a catalyst comprising an EMM-10 molecular sieve under conditions effective to oligomerize said isobutene and produce an effluent containing less isobutene than the feedstock. | 04-30-2009 |
20130225890 | Liquid Phase Alkylation Process - The present invention provides a process for producing a monoalkylated aromatic compound comprising the step of contacting an alkylatable aromatic compound with an alkylating agent in the presence of a catalyst composition under effective alkylation conditions, said catalyst composition comprising MCM-56 and a binder, such that the crystal/binder weight ratio in the catalyst composition is from above 20/80 to about 80/20. | 08-29-2013 |
20130251627 | High Throughput Process for Manufacturing Molecular Sieves - A method of crystallizing a crystalline molecular sieve having a pore size in the range of from about 2 to about 19 Å, said method comprising the steps of (a) providing a mixture comprising at least one source of ions of tetravalent element (Y), at least one hydroxide source (OH | 09-26-2013 |
20130324760 | Hydrocarbon Conversion Process Using a High Throughpout Process for Manufacturing Molecular Sieves - A method of crystallizing a crystalline molecular sieve having a pore size in the range of from about 2 to about 19 Å, said method comprising the steps of (a) providing a mixture comprising at least one source of ions of tetravalent element (Y), at least one hydroxide source (OH | 12-05-2013 |
20140157986 | DDR TYPE ZEOLITES WITH STABILIZED ADSORPTION - Methods are provided for forming zeolite crystals suitable for gas phase separations with transport characteristics that are stable over time. The zeolitic materials and/or corresponding methods of synthesis or treatment described herein provide for improved stability in the early stages of process operation for some types of gas phase separations. The methods allow for synthesis of DDR type zeolites that have reduced contents of alkali metal impurities. The synthetic methods for reducing the non-framework alkali metal atom or cation impurity content appear to have little or no impact on the DDR crystal structure and morphology. | 06-12-2014 |
20140161717 | SYNTHESIS OF ZSM-58 CRYSTALS WITH IMPROVED MORPHOLOGY - Methods are provided for synthesizing ZSM-58 crystals with an improved morphology and/or an improved size distribution. By controlling the conditions during synthesis of the ZSM-58 crystals, crystals of a useful size with a narrow size distribution can be generated. Additionally, by controlling the ratio of water content to silica content in the synthesis mixture, it has unexpectedly been found that ZSM-58 crystals can be formed with an improved morphology. The improved morphology can result in ZSM-58 crystals with a more uniform size across the various dimensions of the crystal, which allows for more uniform diffusion within the crystal. This is in contrast to conventionally synthesized crystals, where the size of the crystal can vary along different axes of the crystals. | 06-12-2014 |
20140194653 | High Throughput Process for Manufacturing Molecular Sieves of MFI Framework Type - A process for converting hydrocarbons comprising the step of contacting said hydrocarbons under conversion conditions with a crystalline molecular sieve having a pore size in the range of from about 2 to about 19 Å, said molecular sieve made by a method comprising the steps of (a) providing a mixture comprising at least one source of ions of tetravalent element (Y), at least one trivalent element hydroxide source (OH | 07-10-2014 |
20140234207 | MCM-56 Manufacture - The present invention provides an improved method for manufacturing high quality porous crystalline MCM-56 material. It also relates to the MCM-56 material manufactured by the improved method, catalyst compositions comprising same and use thereof in a process for catalytic conversion of hydrocarbon compounds. One such conversion process involves production of monoalkylated aromatic compounds, particularly ethylbenzene and cumene, by the liquid or partial liquid phase alkylation of alkylatable aromatic compound, particularly benzene. | 08-21-2014 |
20140243567 | Liquid Phase Alkylation Process - The present invention provides a process for producing a monoalkylated benzene comprising the step of contacting benzene with an alkylating agent in the presence of a catalyst composition under effective alkylation conditions to form said monoalkylated benzene and polyalkylated benzene, said catalyst composition comprising MCM-56 and a binder, such that the crystal/binder weight ratio in said catalyst composition is from about 20/80 to about 80/20, wherein said polyalkylated benzene comprises dialkylated benzene and trialkylated benzene, and the weight ratio of trialkylated benzene to dialkylated benzene is in the range from about 0.08 to about 0.12. | 08-28-2014 |