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7560092 |
Method for preparing an aluminosilicate polymer and the polymer resulting from this method
The present invention relates to a method for preparing an aluminosilicate polymer and the polymer resulting from this method. Said method consists in treating an aluminum halide with an alkyl...
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7507392 |
Method for preparing a hybrid aluminosilicate polymer and the polymer resulting from this method
The present invention relates to a method for preparing a hybrid aluminosilicate polymer and the polymer resulting from this method. Said method consists in treating an aluminum halide with a...
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7361328 |
Method of preparing ZSM-5 using variable temperature without organic template
Disclosed is a method of preparing ZSM-5 having substantially 100% crystallinity by using variable temperatures in the absence of an organic template, characterized in that a reaction mixture...
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6991678 |
Process for preparing microporous crystalline titanium silicate
A process for the preparation of crystalline microporous titanium silicates using ethylsilicate-40 and titanium peroxide as silicon and titanium sources respectively is described. The process...
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6969692 |
Process for the preparation of doped pentasil-type zeolites using a doped reactant
A process for the preparation of a metal-doped pentasil-type zeolite comprising the steps of:
a) preparing an aqueous precursor mixture comprising a silicon source and an aluminum source, at least...
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6478854 |
High purity, low silica X-type zeolite binderless shaped product and gas separation method employing it
There is provided, in a simple, rapid and efficient manner, a high purity, low silica X-type zeolite binderless shaped product with a high content of low silica X-type zeolite and high...
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6451282 |
Process for production of zeolites from raw materials containing alkali alumino hydro-silicates
The invention relates to a process for production of zeolites from raw materials with alkali alumino-hydrosilicate content comprising converting the alkali alumino-hydrosilicate content of the raw...
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6413493 |
Process for producing P zeolite
The invention describes a process for preparing P zeolites in which aluminate and silicate solutions are reacted in the presence of a P-zeolite seed.
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6306363 |
Fine low silica faujasite type zeolite and process for its production
A fine low silica faujasite type zeolite of high purity, having a faujasite single phase as measured by X-ray diffractometry, wherein the SiO 2 /Al 2 O 3 molar ratio is from 1.9 to 2.1, the...
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6190638 |
Molecular sieves and process for their manufacture
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6136289 |
Preparation process for ferrierrite zeolite and its uses as an isomerization catalyst of linear olefin in isoolefin or as a hydrocracking and hydroisomerization paraffin catalyst
A process of preparing a ferrierite-type zeolite, with high crystallinity rate and having a anhydrous stage composition expressed by the formula M x (AlO 2 ) x (SiO 2 ) y , M being a cation of an...
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6096469 |
Ink receptor media suitable for inkjet printing
The ink receptor media of the invention comprise an ink receptor comprising surfactant templated mesoporous particles dispersed within an organic binder on the substrate. The ink receptor media may...
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6036939 |
Heat-resistant low-silica zeolite, and process for production and application thereof
A novel heat-resistant low-silica zeolite, an industrial production process, and uses of the low-silica zeolite are provided. The heat-resistant low-silica zeolite contains Si and Al in a molar...
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5993773 |
Low-silica faujasite type zeolite and method for producing the same
Disclosed are high purity low-silica faujasite type zeolite showing a faujasite single phase on X-ray diffraction, having a SiO 2 /Al 2 O 3 molar ratio of 1.9 to 2.1 and a water adsorption of...
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5948383 |
Hybrid zeolite-silica compositions
This invention relates to zeolitic molecular sieve compositions characterized by outstanding capability to complex multivalent cations, especially calcium. In particular, the invention relates to...
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5942207 |
Method for making white zeolitic detergent builder from using a solid particulate source of alumina
This invention relates to zeolitic molecular sieve compositions characterized by outstanding capability to complex multivalent cations, especially calcium. In particular, the invention relates to...
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5908823 |
Microporous crystalline material, a process for its preparation and its use in detergent compositions
A microporous crystalline material named zeolite A-LSX having, in its anhydrous form, an oxides molar composition corresponding to formula (I): (M 2 /n O+M' 2 /n O).Al 2 O 3 .zSiO 2 (I) in...
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5714133 |
Crystalline aluminosilicate zeolite syntheses
The invention relates to an improvement in the method for synthesis of crystalline aluminosilicate zeolites, such as ZSM-10, whose synthesis requires or is improved by one or more periods of gel...
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5665325 |
Process for producing substantially binder-free zeolite
Silica-bound extruded zeolites may be converted into binder-free zeolite aggregates by aging the zeolite in an aqueous ionic solution which contains hydroxy ions such that the initial molar ratio...
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5567407 |
Li-exchanged low silica EMT-containing metallosilicates
The present invention is a composition, a synthesis of the composition and a method of using the composition for selectively adsorptively separating nitrogen from oxygen wherein the composition is...
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5512266 |
Aluminosilicates and detergent composition
Aluminosilicates in the form of P type zeolites are used as detergency builders and have a silicon to aluminium ratio not greater than 1.33, preferably above 0.9. These zeolites will usually have a...
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5466432 |
Crystalline zeolite-like gallosilicate, and method for its synthesis
The invention relates to a crystalline zeolite-like gallosilicate having an atomic ratio of Si/Ga in the outer crystalline surface that is not larger than the average Si/Ga ratio for the whole of...
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5342596 |
Process for making theta-1 zeolite
Novel crystalline alumino silicates having the following composition in terms of the mole ratio of the oxides: 0.9±0.2 M 2 n :Al 2 O 3 :x SiO 2 :yH 2 O wherein M is at least one cation...
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5275800 |
Crystalline zeolites and method of preparation from amorphous silica particles
Zeolite is synthesized by reacting amorphous silica particles with NaOH and Al 2 O 3 under hydrothermal reaction conditions. The amorphous silica particles are preferably produced by reaction of...
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5273737 |
Method for the preparation of crystalline gallosilicates, and their use for the preparation of catalysts and adsorbents
Disclosed is a method for preparing crystalline gallosilicates having a molar ratio of SiO 2 /Ga 2 O 3 ≥5 an having a more uniform particle size with enhanced catalytic activity. According to...
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5236680 |
Preparation of amorphous silica-alumina particles by acid-treating spherical P-type zeolite particles crystallized from a sodium aluminosilicate gel
The invention is a process for preparing amorphous silica alumina spherical particles by mixing sodium silicate or silicic acid gel with sodium aluminate and sodium hydroxide in an aqueous solution...
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5200377 |
Zeolite SSZ-28
A crystalline zeolite SSZ-28 is prepared using an N,N-dimethyl-tropinium or N,N-dimethyl-3-azonium bicyclo[3.2.2]nonane cation as a template. Also disclosed is a process for converting hydrocarbons...
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5186746 |
High performance sams pigments of low oil, absorption, preparation, properties and end-use applications
Sodium Aluminosilicates (SAMS) are produced by silicate/clay reactions under hydrothermal conditions, the SAMS being characterized by low oil absorption values and high total pore volumes. The SAMS...
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5185138 |
Transistion-metal-aluminosilicate hydrocarbon conversion catalysts having an L type structure, ECR-22-D
This invention relates to novel zeolitic compositions having transition metals as well as aluminum and silicon in the framework tetrahedral positions. The composition has a structure similar to...
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5183650 |
Micro-particulate aluminosilicate and process for producing the same
A micro-particulate aluminosilicate suitable for use as an ion exchanger, adsorbent or the like has a mean particle size of not greater than 3 μm (micrometers), preferably not greater than 1 μm,...
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5178846 |
Method for the preparation of wide-pore crystalline aluminophosphate molecular sieve
An economical and environmentally safe method for synthesizing wide-pore aluminophosphate crystalline molecular sieves primarily involves inorganic synthesis requiring no structure-directing...
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5167707 |
High performance coarse particle size SAMS pigments for paint and plastics applications
High performance synthetic sodium aluminosilicate compositions, and the method of making the same by the hydrothermal reaction of certain delaminated kaolin clays with select sodium silicate...
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5156828 |
Method for manufacturing synthetic mesoporous crystalline material
This invention relates to a method for synthesizing an ultra-large pore crystalline material and the use of such crystalline material as a sorbent and in catalytic conversion of organic and...
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5154904 |
Process for the production of a seed mixture for the synthesis of faujasite
Precipitated silica is mixed with a solution of caustic soda, water and sodium aluminate to form a mixture of the composition: 12±3 Na 2 O:Al 2 O 3 :12±3 SiO 2 :200±60 H 2 O. This...
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5152972 |
Process for producing molecular sieves and novel molecular sieve compositions
Novel molecular sieves are disclosed which are oxides of (a) an alkali metal, an alkaline earth metal and/or ammonium, (b) beryllium, cobalt and/or zinc, and (c) phosphorous, arsenic and/or...
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5143599 |
Process for refining kaolin
A process is disclosed for producing high brightness kaolin from ore containing silica, other types of clays, minerals such as ilmenite micas, feldspars and various metal silicates as well as...
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5133953 |
Method of preparing crystalline ZSM-20 zeolites (C-2517)
An improved method of preparing crystalline aluminosilicate zeolite ZSM-20, that involves preparing a reaction mixture having the formula, expressed in terms of mole ratio of oxides: (9-12)TEA 2 ...
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5133951 |
Process for making a crystalline galliosilicate with the offretite structure
A crystalline, galliosilicate molecular sieve having the offretite structure comprises silicon, gallium, oxygen and substantially no aluminum. The molecular sieve is synthesized by crystallizing a...
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5132253 |
Sol-gel method for making ceramic materials
A method for synthesizing alkaline earth metal-containing ceramic materials by sol-gel processing is described, wherein a sol containing alkoxides or other soluble precursors for a selected ceramic...
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5128027 |
Method for removing mineral slimes from kaolin clay
The invention is directed to a method for reducing the viscosity and increasing the brightness of a kaolin clay by removal of mineral slimes having a particle size of less than about 0.2 micron....
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5118484 |
Desilication of Bayer process solutions
A process is described for removing dissolved silica from process solutions or slurries formed in the Bayer process for producing alumina from bauxite. In the novel process, a Bayer process...
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5112782 |
Cationically processed calcined kaolin clay
A method for producing a low abrasion calcined kaolin pigment which comprises forming an aqueous pulp of crude kaolin dispersing the pulp by adding thereto sufficient water-soluble organic cationic...
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5100636 |
Method for the preparation of crystalline and zeolitic aluminosilicates
Disclosed herein is a method of preparing crystalline, zeolitic aluminosilicates with SiO 2 /Al 2 O 3 ratios of 20 or more. The method provides a two-stage crystallization process which avoids...
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5053213 |
Process for synthesizing a molecular sieve having the faujasite structure and containing aluminum and gallium
A crystalline, gallioaluminosilicate molecular sieve having the faujasite structure is synthesized by mixing a substantially gallia-free aluminosilicate hydrogel with a galliosilicate solution...
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4959268 |
Polymer containing amorphous aluminosilicate particles and process for producing the same
A polymer which contains amorphous aluminosilicate particles holding metal ions having a bactericidal action is physically stable and enables an ideal antibacterial or bactericidal action by the...
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4957719 |
Process for preparation of synthetic mazzite
Synthetic mazzite having a small particle size is advantageously prepared by making present a transparent liquid phase compound in a starting mixture containing a silica source, an alumina source,...
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4891200 |
Omega type zeolite having high thermal stability, its process of preparation and its utilization
This invention concerns an omega type zeolite of high thermal stability, present in the form of hexagonal prismatic monocrystals having scored or plane faces of 0.1 μm in edge and 0.5 to 5 μm in...
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4888309 |
Hydrophobic, highly porous, three-dimensional inorganic structures
Three dimensional hydrophobic substantially inorganic porous structure comprises a myriad of cavities interconnected by holes in which the diameters of the cavities are in the range of from 0.5 to...
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4834961 |
Aluminosilicate zeolite having an offretite structure
A crystalline alumino-silicate having a powder X-ray diffraction diagram, a specific area, and a porous volume to nitrogen corresponding to offretite, and containing at least one metal selected...
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4818509 |
Continuous process for manufacturing crystalline zeolites in continuously stirred backmixed crystallizers
A continuous process is described for manufacturing a wide variety of zeolites having selected crystal sizes and other desired characteristics. Selected raw materials are fed to a precursor tank of...
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