|
Match
|
Document |
Document Title |
|
|
4987106 |
Process for producing clay mineral of chain structure
A process for producing a clay mineral of chain structure such as sepiolite and attapulgite. The process comprises suspending a metal silicate gel in an aqueous solution which has a pH value of...
|
|
|
4985164 |
Forsterite and its use as insulating material
The present invention relates to a fibrous-like synthetic forsterite obtained by the calcination of chrysotile asbestos fiber at a temperature of from 650° to 1450° C., said synthetic forsterite...
|
|
|
4978516 |
Process for treating talc
A process for improving a purity and/or whiteness degree of a talc powder is disclosed. A talc powder with a particle size of about 0.8 mm or less containing impurities such as asbestos, etc. is...
|
|
|
4952388 |
Method of treating phyllosilicates
There is disclosed a method of treating phyllosilicate materials by exposing the materials to a source of hydrogen ions to hydrate hydroxyl ions on and in the phyllosilicate structure. The source...
|
|
|
4917802 |
Method for treating waste water
A method of treating raw water containing phosphorous and nitrogen compounds and organic matter in which the raw water is passed through an aerobic zone containing a porous material. Anaerobic...
|
|
|
4849195 |
Synthetic crystal aggregates of xonotlite and process for preparing same
In synthetic, substantially spherical crystal aggregates of xonotlite having a particle size of more than 20 microns, and preferably up to 150 microns, up to 30% of the silicon atoms can be...
|
|
|
4830843 |
Synthetic lamellar magnesium phyllosilicate and process for preparation thereof
A synthetic lamellar magnesium phyllosilicate has as the main component a composition represented by the following formula: Mg 3 Si 4 O 10 (OH) 2 .nH 2 O (1) wherein n is a number...
|
|
|
4824985 |
Novel route to Ca.sub.8 Si.sub.4 O.sub.12 Cl.sub.8, alkoxycyclotetrasiloxanes, aryloxycyclotetrasiloxanes, alkylcyclotetrasiloxanes and arylcyclotetrasiloxanes from wollastonite (Ca SiO.sub.3)
The present invention relates to a process for the preparation of alkoxy, aryloxy, alkyl, and aryl cyclotetrasiloxanes from a metal silicate halide salt, Ca 8 Si 4 O 12 Cl 8 .
|
|
|
4812204 |
Process for obtaining boric acid treated asbestos fiber
The invention relates to novel borated asbestos fibers which possess improved filtration properties.
|
|
|
4812260 |
Process for production of mineral dispersions
Disclosed is an improved process for producing dispersions of vermiculite ore particles by intercalating organo-cation salts into the vermiculite structure under shearing conditions to delaminate...
|
|
|
4810280 |
Method for enhancing water retention in soil
The present invention relates to a method for enhancing the water-retention capacity of soils and providing plant nutrients to same over an extended period of time. This method comprises the...
|
|
|
4798717 |
Production of elements and compounds by deserpentinization of ultramafic rock
Ultramafic rock material containing, or which is serpentinized so as to contain, substantially or completely serpentinized material, or alternatively, clay material containing structural water, is...
|
|
|
4789595 |
Process for surface treating layered lattice silicates and resultant products
A method for chlorinating the surface of a layered lattice silicate to produce a reactive chloride intermediate. The layered lattice silicate is reacted in substantially dry particulate form with a...
|
|
|
4780297 |
Low brightness magnesium silicate filler and methods
Low structure magnesium silicate pigment is useful as a low cost, low brightness filler for newsprint. The magnesium silicate is prepared by dissolving a serpentine mineral in sulfuric acid and...
|
|
|
4767429 |
Glass body formed from a vapor-derived gel and process for producing same
The disclosed simple, economical and rapid sol-gel process for forming a silica-based glass body, termed the "vapogel" process, comprises introduction of a silicon halide-containing gas (e.g., SiCl...
|
|
|
4765808 |
Separation of carbon monoxide from nitrogen with Ba exchanged zeolite X
A crystalline zeolite having, except for water crystallization, the formula: Ba 43x Na 86 (1-x) [(AlO 2 ) 86 (SiO 2 ) 104 ](I) wherein x is a number from 0.6 to 0.8. This crystalline zeolite...
|
|
|
4749676 |
Process for the preparation of a crystalline, swellable sheet silicate of the saponite type
A crystalline swellable sheet silicate of the saponite type, of the formula [Mg 6 (Si 8 -x Al x )O 20 (OH) 4 ] x -.(x/z)M z + n H 2 O in which x is a number which is less than 1.5 but at...
|
|
|
4737306 |
Layered silicates of limited swelling power, a process for their production and their use in detergents and cleaning preparations
The present invention provides synthetic, finely divided water-insoluble layered silicates having a smectite-like crystal phase, with increased contents of bound alkali and silicate and a...
|
|
|
4735710 |
Beryllium flotation process
A process and reagents are described for separating beryllium silicate concentrates by flotation from oxidic minerals. The process is especially suitable for the separation of phenacite and...
|
|
|
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.
|
|
|
4729881 |
Hydrometallurgical process for the production of beryllium
Beryllium is efficiently recovered from silicate ores in a hydrometallurgical, single solvent, process which avoids the complexities, high costs and hazards ofpyrolytic, fluorination and acid leach...
|
|
|
4717773 |
Silicate esters and organosilicon compounds
A method for the preparation of alkoxysilanes and alkoxysiloxanes from a silicate material, and for the further conversion to organosilanes and organosiloxanes. Methods for the preparation of...
|
|
|
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...
|
|
|
4698449 |
Crystalline silicates, and processes for the production or use thereof
This invention relates to a novel crystalline silicate useful as a catalyst for various organic reactions such as polymerization of organic compounds, alkylation, isomerization, disproportionation...
|
|
|
4687595 |
Process for producing corrosion inhibiting particles
A process for producing corrosion inhibiting particles comprising binding corrosion inhibiting cations by ion-exchange to particles of silica or alumina, which preferably have a BET surface area of...
|
|
|
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...
|
|
|
4668300 |
Preparation of cement using stabilized fibers of metastable calcium silicate
A molten reaction product of calcium oxide, silica and aluminum is quickly quenched from a temperature clearly in excess of the α'-α inversion in a manner which simultaneously forms stabilized...
|
|
|
4666693 |
Process for the preparation of high-level ion-exchanged zeolites
A process is provided for achieving a high degree of exchange for zeolites, e.g., Zeolites F and W. After preparation of the ammonium form, the zeolite is contacted with a solution containing the...
|
|
|
4664898 |
Process for preparation of mordenite type zeolite
A mordenite type zeolite having a high purity and a high SiO 2 /Al 2 O 3 molar ratio is prepared without using an organic or inorganic mineralizer, by a process wherein a homogeneous...
|
|
|
4665256 |
Alkylation of aromatic mixtures
Alkylation of a mixture of aromatic compounds employing novel crystalline porous magnesium silicates having catalytic activity.
|
|
|
4657750 |
Process for the production of crystalline silicate ISI-4 using ethylene glycol
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...
|
|
|
4642226 |
Process for the preparation of zeolite Beta using dibenzyldimethylammonium ions and the product produced
This invention relates to a new and improved form of crystalline silicate having the structure of zeolite Beta, to a new and useful improvement in synthesizing said crystalline silicate and to use...
|
|
|
4640829 |
Synthesis of crystalline silicate ZSM-50 using dibenzyldimethylammonium ions and the product produced
This invention relates to a new and improved form of crystalline silicate having the structure of zeolite ZSM-50, to a new and useful improvement in synthesizing said crystalline silicate and to...
|
|
|
4632815 |
Crystalline layered silicate
A method is provided for synthesizing a crystalline layered silicate from a specified reaction mixture having a particular composition including a specified organic directing agent, said layered...
|
|
|
4629508 |
Process for forming hydrated calcium silicate products
A process is described for the formation of shaped hydrated calcium silicate products. The process comprises reacting an aqueous slurry containing a source of calcium hydroxide, perlite as a source...
|
|
|
4622214 |
Method for the preparation of crystalline molecular sieve materials wherein the organic template is an enantiomer
Crystalline molecular sieve materials such as high silica zeolites are manufactured using an organic template comprising an optically active enantiomer such as an enantiomer of 3(±) methyl...
|
|
|
4608215 |
Preparation of ceramics
Ceramic materials comprising steatite or forsterite which are highly dense in nature may be prepared by admixing a hydrolyzed alcoholic solution of a silicon alkoxide with a solution prepared by...
|
|
|
4585641 |
Process for producing crystalline gallosilicates
This invention relates to crystalline gallosilicates having the following composition in terms of the mole ratios of the oxides: 0.9±0.25M 2 / n O:Ga 2 O 3 :xSiO 2 :yH 2 O.zQ wherein M is...
|
|
|
4563441 |
Composition for treating beer to prevent chill haze and metal contamination
Inorganic chill-proofing and other agents that are used to process stable beer often contain metals such as iron and copper that are soluble in beer or other beverages. A small addition of...
|
|
|
4559213 |
Synthesis of ZSM-12 zeolite
There is disclosed a process for preparing a ZSM-12 crystalline zeolite wherein the organic template used in the synthesis has the formula: ##STR1## wherein n=4-10. The template, designated herein...
|
|
|
4557916 |
Synthetic calcium silicates and methods of preparation
Alkaline earth metal alumino silicates of the formula: (0.1-720)Me:(0.005-100)B 2 O:Al 2 O 3 :(1.0-400)SiO 2 :XH 2 O wherein Me is an alkaline earth metal, B is an alkali metal, and X is an...
|
|
|
4545970 |
Method for the formation of calcium silicate and the resulting structure
Calcium silicate is formed by a process wherein the viscosity of the calcium silicate produced in an autoclave is lowered by adding an acetate to the reaction constituents prior to the reaction of...
|
|
|
4542002 |
Silicates with high ion exchange capacity derived from sepiolite and processes for their production
Silicate having high ion exchange capacity are obtained by reacting sepiolites with a base, preferably a strong base in the presence of a polar liquid at a temperature, preferably elevated, and for...
|
|
|
4537754 |
Zeolite EU-1 and a method of making zeolite EU-1
A new zeolite material designated EU-1 having a molar composition expressed by the formula: 0.5 to 1.5 R 2 O:Y 2 O 3 : at least 10 XO 2 :0 to 100 H 2 O wherein R is a monovalent cation or 1...
|
|
|
4512962 |
Hormite inclusion complex with adsorbed sulphur or sulphur donor
A hormite inclusion complex which comprises hormite having adsorbed and/or supported thereon at least one member selected from the group consisting of s sulphur and a sulphur-donating agent. The...
|
|
|
4508742 |
Treating beer to prevent chill haze and metal contamination
Inorganic chill-proofing and other agents that are used to process stable beer often contain metals such as iron and copper that are soluble in beer or other beverages. A small addition of...
|
|
|
4503158 |
Double or mixed silicates of alkali metal and other glass modifier metal(s) used to prepare glass compositions
An at least double silicate of an alkali metal and at least one other metal is prepared by interreacting (i) an aqueous solution of an alkali metal silicate and (ii) a solution of an oxide of such...
|
|
|
4499320 |
Alkylation process employing magnesium silicate compositions
Alkylation of aromatic compounds employing novel crystalline porous magnesium silicates having catalytic activity.
|
|
|
4496528 |
Process for the preparation of zeolite ZK 5
The invention relates to the preparation of the zeolite ZK-5 from a starting zeolite selected from the group consisting of the zeolites P (Cl), P' (Cl), Q (Br) and Q' (Br). In accordance with the...
|
|
|
4495080 |
Method for preparing a cation exchanger
There is described a method for preparing a cation exchanger to remove metals from liquids they are contained in, which comprises adding to a silicic acid medium with a molecular weight which is...
|