Matches 201 - 250 out of 343 < 1 2 3 4 5 6 7 >
Match Document Document Title
4975258 Novel crystalline (metallo) silicates and germanates  
A crystalline material having, in the dehydrated form, the empirical formula: m(m 2/a O):X z O xz /2 : y YO 2 (I) in which m is 0.5 to 1.5; M is a cation of valency a; X is a metal of...
4973461 Crystalline zeolite composition  
A synthetic crystalline zeolite is provided characterized by having a composition, in terms of mole ratios of oxides, in the range: 0.9 to 1.1 M 2 /n O:Al 2 O 3 :2.5 to 5.1 SiO 2 :xH 2 O...
4963337 Zeolite SSZ-33  
A crystalline zeolite SSZ-33 is prepared using a quaternary ion as a template.
4960578 Zeolite ECR-10  
The present invention relates to a gallo-aluminosilicate zeolite designated as ECR-10 which contains cesium. It also relates to a process for preparation of the zeolite. It may be employed in...
4954325 Composition of synthetic porous crystalline material, its synthesis and use  
This invention relates to a new synthetic porous crystalline material, a method for its preparation and use thereof in catalytic conversion of organic compounds. The new crystalline material...
4902844 New zeolite SSZ-23 and xylene isomerization therewith  
A crystalline zeolite SSZ-23 is prepared using an adamantane quaternary ammonium ion as a template.
4892721 Crystalline zeolite materials constituting maz-morite intermediates  
Disclosed are unique orthorhombic porous tectosilicates intermediate between mordenite (MOR), mazzite (MAZ), and "Omega". Such materials are characterized by an `a` axis value of 7.3Å, a `b` axis...
4879103 Composition and process for preparing ECR-30  
A zeolite characterized by having an x-ray diffraction pattern as shown in Table 1, a silica to alumina mole ratio of at least six, and containing triethyl methyl ammonium, wherein said organic...
4873067 Zeolite ZSM-57  
This invention relates to a synthetic porous zeolite, identified as ZSM-57, a method for its preparation. This crystalline material may have a ratio of XO 2 :Y 2 O 3 of at least 4, wherein X...
4861570 Novel silicate  
A novel crystalline silicate has been prepared under hydrothermal conditions using as diquaternary ammonium salts derived by reaction of diazabicyclo [2.2.2] octane with α,ω-dibromoalkanes.
4859442 Zeolite SSZ-23  
A crystalline zeolite SSZ-23 is prepared using an adamantane quaternary ammonium ion as a template.
4857288 Zeolite LZ-135 and process for preparing same  
Novel crystalline aluminosilicate composition denominated LZ-135 and having uniform pore diameters of approximately 4.3 Angstroms is prepared hydrothermally from a reaction mixture containing as...
4855270 Boronaaronate molecular sieve  
A new crystalline borosilicate molecular sieve, boronaaronate, having a composition in terms of mole ratios of oxides: 0.9±0.2M 2 /n O:B 2 O 3 :ySiO 2 :zH 2 O wherein M is a cation of...
4842836 Zeolite LZ-133  
A novel crystalline aluminosilicate composition denominated "zeolite LZ-133" or simply "LZ-133" and having uniform pore dimensions of approximately 4.3 Angstroms is prepared hydrothermally from a...
4840780 ZSM-51, method of preparing same and catalytic conversion therewith  
A novel crystalline zeolite identified as zeolite ZSM-51 and its method of preparation is disclosed. The use of the material as a catalyst is also disclosed.
4836996 Method of making zeolite Eu-2  
Zeolite EU-2 having a molar composition expressed by the formula: 0.5 to 1.5 R 2 O: Y 2 O 3 : at least 70 XO 2 : 0 to 100 H 2 O wherein R is a monovalent cation or 1/n of a cation of valency...
4837000 Crystalline silicates and process for the production thereof  
Crystalline silicates and processes for the production thereof are described. These crystalline silicates are of new crystalline structure, which, as determined after calcination in the air at...
4831202 Process for oligomerizing light olefins or their mixtures  
A process is disclosed for oligomerizing light olefins or their mixtures, which consists in reacting said olefins, possibly diluted with an inert gas, by means of synthetic zeolites containing...
4828813 Siliceous metal-containing crystalline compositions  
A novel siliceous crystalline composition of matter further comprising one or more metals is prepared by admixing a basic silica salt and a dissolved metal salt in the presence of a quaternary...
4820502 Synthetic crystalline silicate  
This invention relates to a synthetic crystalline bikitaite-type material, a method for its preparation and use thereof in catalytic conversion of organic compounds.
4781906 Crystalline silicas  
A novel crystalline silica composition having a silica to alumina atomic ratio not lower than 80 and having a certain specific X-ray diffraction pattern after calcination in air for at least 3...
4743437 Zeolite Nu-13 and process for its preparation using piperazine compounds  
A synthetic zeolite material, designated zeolite Nu-13, is a member of the ZSM-12 family of zeolites and is prepared from an aqueous reaction mixture containing the oxide XO 2 , the oxide Y 2 O 3 ...
4741891 Synthesis of zeolite EU-2  
Zeolite EU-2 having a molar composition expressed by the formula: 0.5 to 1.5 R 2 O:Y 2 O 3 : at least 70 XO 2 :0 to 100 H 2 O wherein R is a monovalent cation or 1/n of a cation of valency...
4732747 Magnesium silicate compositions and process for making  
Novel crystalline porous magnesium silicates having catalytic activity or other useful properties and processes for preparing said silicates.
4721607 Process for the production of boronaaronate molecular sieve using ethylenediamine and quinoline or isoquinoline  
A new crystalline borosilicate molecular sieve, boronaaronate, having a composition in terms of mole ratios of oxides: 0.9±0.2M 2 /n O:B 2 O 3 :ySiO 2 :zH 2 O wherein M is a cation of...
4717560 Crystalline zeolite composition (ECR-5) having a cancrinite-like structure and process for its preparation  
A crystalline zeolite may be prepared which has a composition, in terms of mole ratios of oxides, in the range: 1.0 to 1.3 Na 2 O:Al 2 O 3 :2.1 to 8.0 SiO 2 and having a cancrinite-like...
4708857 Process for preparing a crystalline iron-borosilicate  
A crystalline ironborosilicate comprises a molecular sieve material having the following composition in terms of mole ratios of oxides 1.0±0.3 M n /2 O; (a Fe 2 O 3 :b B 2 O 3 ):y SiO 2 .z H...
4705674 Synthesis of zeolite EU-13 from a reaction mixture containing tetramethylammonium compound  
A new zeolite material designated EU-13 has a molar composition expressed by the formula: 0.8 to 3.0 R 2 O: Y 2 O 3 : at least 10 XO 2 : 0 to 2000 H 2 wherein R is a monovalent cation or...
4705675 Synthesis of molecular sieving metallosilicates using silica-transition metal oxide sols  
A method for preparing a molecular sieving metallosilicate is disclosed which comprises (A) providing an aqueous dispersion of colloidal particles comprising contiguous mixtures of silica and...
4701315 Zeolite L and process for its preparation  
A zeolite related to zeolite L and having a characteristic cylindrical morphology may be prepared from a crystallization gel comprising (in mole ratios of oxides): K 2 O/SiO 2 --0.22-0.36 H...
4698217 Crystalline silicate ZSM-58 and process for its preparation using a methyltropinium cation  
This invention relates to a new synthetic porous crystalline material, a method for its preparation and use thereof in catalytic conversion of organic compounds. The new crystalline material...
4695440 Crystalline aluminosilicate ISI-6  
A crystalline aluminosilicate, ISI-6, having a composition represented by the general formula (I) after being calcined in air at 550° C., p M 2 /n O.Al 2 O 3 .q SiO 2 . . . (I) wherein M...
4681747 Process for the preparation of metallosilicates of tetravalent lanthanide and actinide series metals using heterpoly metallates  
A molecular sieving metallosilicate is disclosed which comprises a complex represented in terms of mole ratios of oxides by the formula: ##STR1## wherein A is an ammonium, alkyl ammonium, alkyl...
4670617 Propylation of toluene with a high surface area, zinc-modified, crystalline silica molecular sieve  
Described are catalyst compositions comprising a high surface area, zinc-modified, crystalline silica molecular sieve, essentially free of aluminum, which has been incorporated into an inorganic...
4666692 Silica-based synthetic material containing titanium in the crystal lattice and process for its preparation  
The invention provides a silica-based crystalline material that incorporates titanium into the crystal lattice. A process for preparing this material is also disclosed which is based on the...
4664775 Method for manufacturing low pour point petroleum product with zeolite TSZ  
This invention relates to a method for catalytically manufacturing a low pour point petroleum product from distillates of crude oil, and more particularly to a method for economically manufacturing...
4663140 Process for the preparation of crystalline aluminum silicate compounds using pyridine and a quaternary ammonium compound  
A process of manufacture of a crystalline aluminum silicate is disclosed wherein the aqueous forming solution has augmented thereto both a pyridine compound and a quaternary ammonium hydroxide. The...
4661332 Zeolite (ECR-18) isostructural with paulingite and a method for its preparation  
This invention relates to a synthetic zeolite, designated as ECR-18, having a structure similar to the mineral paulingite and a process for preparation of the zeolite.
4657748 Crystalline zeolite (ECR-1) and process for preparing it  
A synthetic crystalline zeolite is provided characterized by having a composition, in terms of mole ratios of oxides, in the range: 0.1 to 0.02 R 2 O:0.90 to 0.98 Na 2 O:Al 2 O 3 :5 to 20 SiO...
4656016 Silica-based synthetic materials containing boron in the crystal lattice and processes for their preparation  
The invention is concerned with particular crystalline silica materials that contain boron in the crystal lattice. These materials are useful as catalysts for many reactions.
4645655 Process for the preparation of zeolite Nu-27 using tetramethylmediamine  
A crystalline zeolitic material, designated Nu-27, has a composition (in terms of mole ratios of oxides) expressed by the formula: 0 to 9 M 2 O:aY 2 O 3 :100 XO 2 :0 to 35 H 2 O, wherein M...
4637923 Synthetic crystalline silicate  
This invention relates to a new synthetic porous crystalline material, a method for its preparation and use thereof in catalytic conversion of organic compounds. The new crystalline material...
4634686 Yttrium silicate molecular sieves  
A yttrium-silicate molecular sieve is disclosed which comprises a complex represented in terms of mole ratios of oxides as follows: aA 2 O:Y 2 O 3 :bSiO 2 :cH 2 O wherein A is an alkali...
4623526 Process for the preparation of a crystalline titanoborosilicate  
A new crystalline titanoborosilicate comprises a molecular sieve material having the following composition in terms of mole ratios of oxide: 0.9±0.2M 2 /n O: aTiO 2 :bB 2 O 3 : ySiO 2 .zH 2 ...
4623529 Method of making a zeolite of the clinoptilolite type by seeding  
The present invention is directed to the preparation of a synthetic crystalline zeolite of the clinoptilolite type wherein a solid amorphous silica, an alumina source, sodium hydroxide, a seed...
4619820 Synthesis of ZSM-23 zeolite and the product produced  
An improved method of synthesizing highly siliceous ZSM-23 zeolitic material is disclosed and claimed. The method comprises preparing a reaction mixture which comprises sources of an alkali metal,...
4610855 Synthesis of zeolite ZSM-14  
A process for preparing ZSM-14 zeolite, and a product thereof, is disclosed. The process uses an organic directing agent of the formula R"--O--R'--O - --A m + where A is a cation having a...
4610854 Zeolite SSZ-15 and process for preparing the same  
A crystalline zeolite, SSZ-15, is prepared from cyclopentyl trimethylammonium and cyclohexyl trimethylammonium cations.
4582693 Synthesis of silica molecular sieves using synthesis directing organic dyes  
A method is disclosed for making a silica molecular sieve comprising: (A) providing a mixture comprising: water; an oxide, hydroxide or alkoxide of silicon; a mineralizing agent; and a synthesis...
4581211 Zeolite EU-12  
A new zeolite material designated EU-12 has a molar composition expressed by the formula: 0.5 to 2.0 R 2 O: Y 2 O 3 : at least 5 XO 2 : 0 to 1000 H 2 O wherein R is a monovalent cation or 1/n...
Matches 201 - 250 out of 343 < 1 2 3 4 5 6 7 >