Patent application number | Description | Published |
20130272954 | METHOD FOR PREPARING MOLECULAR SIEVE SSZ-87 - This disclosure is directed to a method for preparing a new crystalline molecular sieve designated SSZ-87, which is synthesized using an N,N′-diisopropyl-N,N′-diethylbicyclo[2.2.2]oct-7-ene-2,3:5,6-dipyrrolidinium dication as a structure directing agent. | 10-17-2013 |
20130272955 | MOLECULAR SIEVE SSZ-87 - This disclosure is directed to a new crystalline molecular sieve designated SSZ-87, which is synthesized using an N,N′-diisopropyl-N,N′-diethylbicyclo[2.2.2]oct-7-ene-2,3:5,6-dipyrrolidinium dication as a structure directing agent. | 10-17-2013 |
20140072494 | Treatment of Cold Start Engine Exhaust - The present invention relates to a process for reducing cold start emissions in an exhaust gas stream by contacting the exhaust stream with a combination of molecular sieves comprising (1) a small pore crystalline molecular sieve or mixture of molecular sieves having pores no larger than 8 membered rings selected from the group consisting of SSZ-13, SSZ-16, SSZ-36, SSZ-39, SSZ-50, SSZ-52 and SSZ-73 and (2) a medium-large pore crystalline molecular sieve having pores at least as large as 10 membered rings selected from the group consisting of SSZ-26, SSZ-33, SSZ-64, zeolite Beta, CIT-1, CIT-6 and ITQ-4. | 03-13-2014 |
20140147378 | METHOD FOR PREPARING CHA-TYPE MOLECULAR SIEVES USING COLLOIDAL ALUMINOSILICATE - The present invention is directed to a process for preparing CHA-type molecular sieves using a colloidal aluminosilicate composition containing at least one cyclic nitrogen-containing cation suitable as directing agents for synthesizing CHA-type molecular sieves. | 05-29-2014 |
20140241980 | ZEOLITE SSZ-57 HAVING ENHANCED LARGE PORE SELECTVITY - The present invention is directed to an alumino-borosilicate SSZ-57 zeolite having enhanced large pore selectivity. The alumino-borosilicate SSZ-57 zeolite of the present invention is characterized as having substantially all of its aluminum atoms located within regions of the zeolite structure which form the 12 ring channels. | 08-28-2014 |
20140356280 | Delamination of Borosilicate Layered Zeolite - Provided is a surfactant-free, single-step synthesis of delaminated aluminosilicate zeolites. The process comprises the step of heating a borosilicate zeolite precursor in a metal salt solution, e.g., an aluminum nitrate solution, zinc nitrate solution or manganese nitrate solution. The delaminated aluminosilicate zeolite product is then recovered from the solution. | 12-04-2014 |
20150038322 | ZEOLITE SSZ-70 HAVING ENHANCED EXTERNAL SURFACE AREA - A method is disclosed for preparing zeolite SSZ-70 using an imidazolium cation as a structure directing agent in conjunction with a polyethyleneimine modifier. The SSZ-70 zeolite is characterized as having an external surface area larger than conventional SSZ-70 zeolites. | 02-05-2015 |
20150118147 | NOVEL OXIDE MATERIALS AND SYNTHESIS BY FLUORIDE/CHLORIDE ANION PROMOTED EXFOLIATION - The present invention is directed to the synthesis of novel delaminated layered zeolite precursor materials prepared by fluoride/chloride anion-promoted exfoliation. The method comprises, for example, using a combination of fluoride and chloride anions at a mild pH in aqueous solution to affect delamination of a layered zeolite precursor. The method can also comprise using a combination of fluoride and chloride anions in a non-aqueous solution comprising an organic solvent. The method may be used in conjunction with either acidification or sonication, or both. The resulting delaminated zeolite precursors are then isolated. Precursors that are then isolated lack amorphous silica content. The UCB- | 04-30-2015 |
20150118148 | NOVEL OXIDE MATERIALS AND SYNTHESIS BY FLUORIDE/CHLORIDE ANION PROMOTED EXFOLIATION - The present invention is directed to the synthesis of novel delaminated layered zeolite precursor materials prepared by fluoride/chloride anion-promoted exfoliation. The method comprises, for example, using a combination of fluoride and chloride anions at a mild pH in a non-aqueous solution to affect delamination of a layered zeolite precursor, generally comprising an organic solvent. The method may be used in conjunction with either acidification or sonication, or both. The resulting delaminated zeolite precursors are then isolated. Precursors that are then isolated lack amorphous silica content. The UCB-1 product is an example of such a novel oxide material and is obtained in yields in excess of 90% without the need for sonication. | 04-30-2015 |