| Patent Number |
Title Of Patent |
Date Issued |
| 5516957 |
Discrete molecular sieve and use |
May 14, 1996 |
| This invention presents a novel MgAPSO molecular sieve, containing a critical range of magnesium in the sieve framework and having a small crystallite size, which is particularly active for hydrocarbon conversion. The sieve advantageously is incorporated, along with a platinum-group |
| 5478787 |
Discrete molecular sieve and use |
December 26, 1995 |
| This invention presents a novel MgAPSO molecular sieve, containing a critical range of magnesium: in the sieve framework and having a small crystallite size, which is particularly active for hydrocarbon conversion. The sieve advantageously is incorporated, along with a platinum-group |
| 5434326 |
Discrete molecular sieve and use in aromatic-olefin alkylation |
July 18, 1995 |
| This invention presents a novel MgAPSO molecular sieve, containing a critical range of magnesium in the sieve framework and having a small crystallite size, which is particularly active for hydrocarbon conversion. The sieve advantageously is incorporated, along with a refractory inor |
| 5276236 |
Discrete molecular sieve and use |
January 4, 1994 |
| This invention presents a novel MgAPSO molecular sieve, containing a critical range of magnesium in the sieve framework, which is particularly active for hydrocarbon conversion. The sieve advantageously is incorporated, along with a platinum-group metal, into a catalyst formulation w |
| 5114563 |
Hydrocarbon conversions using catalysts silicoaluminophosphates |
May 19, 1992 |
| The catalytic conversion of hydrocarbon feedstocks is affected under effective conversion process conditions in the presence of silicoaluminophosphate-based catalyst compositions. |
| 5057295 |
Boron-aluminum-phosphorus-silicon-oxide molecular sieve compositions |
October 15, 1991 |
| Molecular sieve compositions having three-dimensional microporous framework structures of BO.sub.2, AlO.sub.2, PO.sub.2 and SiO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:wherei |
| 5032368 |
Gallium-aluminum-phosphorus-oxide molecular sieve compositions |
July 16, 1991 |
| Molecular sieve compositions having three-dimensional microporous framework structures of GaO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:wherein "R" repr |
| 5013535 |
Stabilized aluminophosphate compositions and process for preparing same |
May 7, 1991 |
| Aluminophosphate-based molecular sieve compositions having the crystal structure of AlPO.sub.4 -54 are stabilized against framework collapse or conversion to other crystal structures by treatment in their hydrated state with boric acid or salts thereof. The stabiized products are cha |
| 4992250 |
Germanium-aluminum-phosphorus-silicon-oxide molecular sieve compositions |
February 12, 1991 |
| Molecular sieve compositions having three-dimensional microporous framework structures of GeO.sub.2, AlO.sub.2, PO.sub.2 and SiO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR:(G |
| 4985151 |
Process for separating molecular species |
January 15, 1991 |
| Crystalline molecular sieves having three-dimensional microporous framework structures of ELO.sub.2, SiO.sub.2 and PO.sub.2 framework oxide units are disclosed. The molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:wherein "R" represen |
| 4973785 |
Molecular sieve compositions |
November 27, 1990 |
| Crystalline molecular sieves having three-dimensional microporous framework structures of ELO.sub.2, AlO.sub.2, SiO.sub.2 and PO.sub.2 framework oxide units are disclosed. The molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (EL.s |
| 4973460 |
Lithium-aluminum-phosphorus-silicon-oxide molecular sieve compositions |
November 27, 1990 |
| Molecular sieve compositions having three-dimensional microporous framework structures of LiO.sub.2, AlO.sub.2, PO.sub.2 and SiO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:where |
| 4952383 |
Boron-aluminum-phosphorus-oxide molecular sieve compositions |
August 28, 1990 |
| Molecular sieves having three-dimensional microporous framework structures of BO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:wherein "R" represents at least one |
| 4940570 |
Beryllium-aluminum-phosphorus-oxide molecular sieve compositions |
July 10, 1990 |
| Molecular sieve compositions having three-dimensional microporous framework structures of BeO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:wherein "R" repr |
| 4938937 |
Crystalline aluminophosphate composition |
July 3, 1990 |
| A novel crystalline aluminophosphate of the molecular sieve type, denominated AlPO.sub.4 -34, is prepared by hydrothermal synthesis from reactive sources of aluminum and phosphorus and an organic templating agent. |
| 4913888 |
Arsenic-aluminum-phosphorus-oxide molecular sieve compositions |
April 3, 1990 |
| Molecular sieve compositions having three-dimensional microporous framework structures of AsO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:wherein "R" repr |
| 4894213 |
Arsenic-aluminum-phosphorus-silicon-oxide molecular sieve compositions |
January 16, 1990 |
| Molecular sieve compositions having three-dimensional microporous framework structures of AsO.sub.2, AlO.sub.2, PO.sub.2 and SiO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:where |
| 4888167 |
Germanium-aluminum-phosphorus-oxide molecular sieve compositions |
December 19, 1989 |
| Molecular sieve compositions having three-dimensional microporous framework structures of GeO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:wherein "R" repr |
| 4851106 |
Process for the use of chromium-aluminum-phosphorus-oxide molecular sieve compositions |
July 25, 1989 |
| Molecular sieve compositions having three-dimensional microporous framework structures of CrO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:wherein "R" repr |
| 4793984 |
Molecular sieve compositions |
December 27, 1988 |
| Crystalline molecular sieves having three-dimensional microporous framework structures of ELO.sub.2, AlO.sub.2, SiO.sub.2 and PO.sub.2 framework oxide units are disclosed. The molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:wherein " |
| 4789535 |
Lithium-aluminum-phosphorus-oxide molecular sieve compositions |
December 6, 1988 |
| Molecular sieve compositions having three-dimensional microporous framework structures of LiO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:wherein "R" repr |
| 4781814 |
Molecular sieve compositions and their use in cracking/hydrocracking |
November 1, 1988 |
| Crystalline molecular sieves having three-dimensional microporous framework structure of MO.sub.2, AlO.sub.2, and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis are expressed by the formula:wherein "R" r |
| 4759919 |
Chromium-aluminum-phosphorus-oxide molecular sieve compositions |
July 26, 1988 |
| Molecular sieve compositions having three-dimensional microporous framework structures of CrO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:wherein "R" repr |
| 4738837 |
Chromium-aluminum-phosphorus-silicon-oxide molecular sieve compositions |
April 19, 1988 |
| Molecular sieve compositions having three-dimensional microporous framework structures of CrO.sub.2, AlO.sub.2, PO.sub.2 and SiO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:where |
| 4737353 |
Beryllium-aluminum-phosphorus-silicon-oxide molecular sieve compositions |
April 12, 1988 |
| Molecular sieve compositions having three-dimensional microporous framework structures of BeO.sub.2, AlO.sub.2, PO.sub.2 and SiO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:where |
| 4735806 |
Gallium-aluminum-phosphorus-silicon-oxide molecular sieve compositions |
April 5, 1988 |
| Molecular sieve compositions having three-dimensional microporous framework structures of GaO.sub.2, AlO.sub.2, PO.sub.2 and SiO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:where |
| 4686093 |
Molecular sieve compositions with aluminum, phosphorus and at least two other elements |
August 11, 1987 |
| Crystalline molecular sieves having three-dimensional microporous framework structure of MO.sub.2, AlO.sub.2, and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis are expressed by the formula:wherein "R" r |
| 4473663 |
Crystalline aluminophosphate compositions |
September 25, 1984 |
| A novel crystalline aluminophosphate composition having a unique crystal structure. |
| 4440871 |
Crystalline silicoaluminophosphates |
April 3, 1984 |
| A novel class of crystalline microporous silicoaluminophosphates is synthesized by hydrothermal crystallization of silicoaluminophosphate gels containing a molecular structure-forming templating agent. The class comprises a number of distinct species, each with a unique crystal struc |
| 4073865 |
Silica polymorph and process for preparing same |
February 14, 1978 |
| Large crystals of a silica polymorph having a characteristic X-ray diffraction pattern, a specific gravity of 1.70 .+-. 0.05 g/cc. and a mean refractive index of 1.39 .+-. 0.01 after calcination in air at 600.degree. C., are prepared by a hydrothermal process in which fluoride anions are |
