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6143266 |
Method for producing crystalline inorganic builders
A method for producing a crystalline inorganic builder having the following composition in its anhydrous form: xM 2 O.ySiO 2 .zMeO, wherein x, y and z are numerical values satisfying the following...
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6090734 |
Process for purifying clay by the hydrothermal conversion of silica impurities to a dioctahedral or trioctahedral smectite clay
A hydrothermal reaction which dissolves the amorphous silica and the crystalline silica impurities contained in a recovered, naturally occurring montmorillonite clay, and subsequently converts the...
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6068682 |
Small-pored crystalline titanium molecular sieve zeolites and their use in gas separation processes
Novel gas separation agents with precisely and predictably controlled pore sizes within the range of 3-4 Angstrom units and their preparation from ETS-4 by exchange with cations, particularly...
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6068694 |
Silica based aggregates, elastomers reinforced therewith and tire with tread thereof
This invention relates to aggregates comprised of particles which contain silicon dioxide and to elastomers reinforced therewith. The invention also relates to tires having treads composed of such...
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6054106 |
Magnesiosilicates
Novel magnesiosilicate compounds for use in detergent compositions and as water softeners have a calcium binding capacity of at least 10 mg CaO per gram, a magnesium binding capacity of at least 10...
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6039929 |
Synthesis of monoclinic celsian
A process for producing monoclinic celsian comprising the steps of forming a mixture of an alkoxide of silica, an alkoxide of aluminum, and a salt of barium; adding a catalyst of a fluorine...
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5993769 |
Homostructured mixed organic and inorganic cation exchanged tapered compositions
Homostructured, cation exchanged, layered compositions containing mixed onium and alkali metal, alkaline earth metal, protonated hydronium ions and mixtures thereof are described. Particulate...
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5989316 |
Separation of nitrogen from mixtures thereof with methane utilizing barium exchanged ETS-4
Barium-exchanged ETS-4 shows particular utility in gas separation processes involving the separation of nitrogen from a mixture of the same with methane.
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5955049 |
Mesopore material and method for producing the same
A silicon dioxide tetrahedron sheet having a specific morphology with the pseudomorphs of the starting raw material of clay minerals for the sheet is prepared, and this is reacted with an...
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5891417 |
Zirconium silicate and zirconium germanate molecular sieves and process using the same
A new family of crystalline molecular sieves have been synthesized. These compositions have a microporous structure of ZrO 3 octahedral units, and at least one of SiO 2 tetrahedral units and GeO...
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5888472 |
Zirconium silicate molecular sieves and process using the same
A new family of crystalline molecular sieves have been synthesized. These compositions have a microporous structure of at least ZrO 3 octahedral units and SiO 2 tetrahedral units. Optionally, the...
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5868818 |
Adsorbent for air separation, production method thereof, and air-separation method using it
A crystalline zeolite X adsorbent comprising a crystalline zeolite X having an SiO 2 /A 2 O 3 molar ratio of not larger than 3.0, where lithium cations associated with an AlO 2 tetrahedron unit...
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5858320 |
Process for preparing ultrafine aluminum silicate salt particles
A process for preparing ultrafine aluminum silicate salt particles, said process comprising the steps of admixing a solution of aluminum chloride with water glass to form an aluminum silicate gel,...
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5840264 |
Crystalline inorganic oxide compositions prepared by neutral templating route
This invention relates to new crystalline organic compositions having unique combinations of framework-confined uniform mesopores and textural mesopores and to a method for their preparation. The...
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5750038 |
Method for the preparation of acid-resistant calcium silicate
A novel method is proposed for the preparation of a calcium silicate powder particularly useful as a filter aid in the filtration of an acidic aqueous liquid by virtue of the extremely high acid...
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5707960 |
Amorphous sodium silicate-metal sulfate composite powder
Amorphous sodium silicate-metal sulfate composite powder having water softening power and having small hygroscopicity, and useful as a detergent builder is provided. This amorphous sodium...
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5695725 |
Method of preparing monoclinic BaO.A1.sub.2 O.sub.3.2SiO.sub.2
Monoclinic celsian (BaO.Al 2 O 3 .2SiO 2 ) is produced by heating a stoichiometric, powder mixture of BaCO 3 (or BaC 2 O 4 ), Al 2 O 3 , and SiO 2 (preferably SiO 2 gel) with monoclinic...
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5637552 |
Process for producing neutral to alkali color developer pigments
A process is described for producing neutral to alkaline color developer pigments for use in carbon-free transfer papers from an acid-activated smectic phyllosilicate and basically reacting...
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5618783 |
Synthesized inorganic ion exchange material and detergent composition containing the same
The synthesized inorganic crystalline ion exchange material has a composition represented by the following general formula in an anhydride form: aX 2 O.bSiO 2 .cX'O, wherein X represents Na and...
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5595716 |
Synthetic mixed-layer silicate and method for the preparation thereof
A novel synthetic mixed-layer silicate consisting of the layers of serpentine and layers of saponite each having a specified chemical composition is proposed, which has excellent dispersibility in...
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5576255 |
Refractory sand composition
Compositions for refractory materials and methods for providing the compositions are described. A synthetic forsterite-rich refractory sand composition includes a mixture. The mixture includes: a)...
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5527871 |
Layered inorganic-organic polymer shaped article thereof and process for producing the same
A layered inorganic-organic polymer having the features of both inorganic and organic materials and a coating material produced therefrom. The former is produced, for example, by reacting an...
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5513038 |
Antireflective film and optical elements having the same
An antireflective film, comprising a film composed of an inorganic chemical compound consisting of Mg, Si, O and F and a film composed of an inorganic chemical compound consisting of Zr, Si and O....
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5472636 |
Method of preparing manganese and lead coactivated calcium silicate phosphor
A process for producing a manganese and lead activated calcium metasilicate phosphor having the nominal formula CaSiO 3 :MN:Pb. The process involves preparing a uniform aqueous dispersion of fumed...
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5453408 |
Forsterite-rich refractory sand composition
A synthetic forsterite-rich refractory sand composition for use as a taphole nozzle refractory sand for a sliding gate system of a steel ladle, the synthetic forsterite-rich sand composition...
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5435988 |
Clathrasil of the dodecasil 1 H structural type having a small average crystal size
The invention relates to a process for the preparation of crystalline clathrasil of the dodecasil 1 H structural type having an average crystal size of not more than 20 μm, characterised in that...
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5401481 |
Processes for removing acid components from gas streams
The present disclosure relates to improved processes for treating acid gases to remove acid gas components therefrom. Processes in accordance with the present invention include preparing a calcium...
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5401482 |
Talc substances having specific surface properties and method of manufacture
The invention relates to talc substances consisting of particles having a sheet structure. These substances are characterised in that each particle has internally the crystalline structure of talc...
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5397752 |
Production of water resisting, hard, porous metasepiolite
Disclosed is a porous sepiolite having an improved water-resistance and thermal shock resistance obtained by grinding, moisture-conditioning and molding sepiolite, and then calcining said molded...
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5393472 |
Method of producing wollastonite & ceramic bodies containing wollastonite
A method of using dicalcium silicate, and particularly dicalcium silicate slag, to produce wollastonite. In a particular embodiment, the method is used for the production of ceramic products, such...
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5378661 |
Synthetic phyllosilicates and process for their preparation
The present invention relates to synthetic phyllosilicates having a lamellar structure of the type T--O--T devoid of OH - and F - ions. Said phyllosilicates are very resistant to oxidation and...
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5370852 |
Primary particles of amorphous silica composite material, secondary particles of amorphous silica composite material, shaped bodies thereof and processes for their preparation
The invention provides: primary particles of amorphous silica composite material, characterized in that they are composed of numerous granular amorphous silica particles randomly attached to...
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5368836 |
Low-template clathrasil
The invention relates to a process for the preparation of low-template clathrasil, comprising heat-treating an alkaline aqueous silicate-containing medium containing crystallization seeds and an...
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5348725 |
Method of making pillared hydrotalcites and associated products
A method of making a pillared hydrotalcite and an associated products. The pillared hydrotalcite is made by calcining a hydrotalcite having the formula A w B x (OH) y [C] z nH 2 O, wherein...
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5286285 |
Finely powdery magnesium hydroxide and a process for preparing thereof
A finely powdery magnesium hydroxide especially suitable as a flame-retardant filler for plastic compounds, in which the particles are provided optionally with a thin coating of a surfactant. The...
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5273728 |
Mixed metal layered hydroxide/fumed silica adducts
Fine particle silica, especially fumed silica (FS), is interacted, in aqueous medium, with a substantially crystalline mixed metal layered hydroxide (MMLH) of the formula shown below to form a...
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5229094 |
Talc substances having specific surface properties, methods of manufacture and applications
The invention relates to talc substances consisting of particles having a sheet structure. These substances are characterised in that each particle has internally the crystalline structure of talc...
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5204078 |
Method for producing fluorine mica
The present invention is a method for producing swellable or nonswellable fluorine mica at a relatively lower temperature by heating a powdery mixture comprising 10 to 35% by weight of an alkali...
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5154903 |
Treatment of asbestos and silicates to reduce their toxicity
This invention pertains to an improved method of inhibiting peroxide-reduction catalytic activity and concomitant toxicity of asbestos and nonasbestos iron-containing silicates. These undesirable...
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5120775 |
Thixotropic additive, process for preparing same and use thereof
Disclosed are micronized synthetic calcium silicates in the form of fluffy particles of needle-like calcium silicate crystals having a particle size of about 0.5 to 50 microns and an average...
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5096692 |
Mineralogical conversion of asbestos waste
There is provided a process for the mineralogical conversion of waste asbestos to a non-asbestos product. The waste asbestos is treated with a mineralizing agent and then heated for a period of...
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5089456 |
Process for preparing cordierite
A process for preparing a cordierite, which includes dissolving a silicon compound, an aluminum compound and a magnesium compound in a molar ratio of 1:0.7 to 1:0.3 to 0.5 in a complexing agent...
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5085838 |
Thermal modification of asbestos
A process is provided for converting asbestoform material into an environmentally safe material by heating the asbestoform material with an alkaline flux so as to change the crystalline structure...
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5082488 |
Soil conditioning
A method for enhancing the water retention capacity of soils and providing plant nutrients thereto over an extended period of time uses chryso-zeolites type A and/or X admixed with a soil at 2 to...
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5077248 |
Synthetic stevensite and process for preparation thereof
Synthetic stevensite composed of stevensite-type sodium magnesium phylosilicate of which metallic components consist essentially of magnesium, sodium and silicon. The synthetic stevensite is...
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5068216 |
Pillaring layered silicates with a mixture of swelling agent and pillar precursor
There is provided a method for pillaring a layered silicate, such as kenyaite, with polymeric oxide by using a single step treatment with a mixture of swelling agent and pillar precursor. The...
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5055281 |
Process for the preparation of calcium fluosilicate as a raw material for obtaining calcium fluoride and pure fluosilicic acid
Process for the production of anhydrous calcium fluosilicate from anhydrous calcium chloride and impure fluosilicic acid solution, a by-product of the acid treatment of phosphorus ores containing...
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5041400 |
Low temperature synthesis of high purity monoclinic celsian
A process for preparing monoclinic celsian from AlF 3 , Al 2 O 3 , BaCO 3 , and fused SiO 2 powders by heating an intimate mixture of the powders (1) at from about 700° to 900° C. to form topaz...
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5006174 |
Smoke suppressant additive for halogenated polymer composition
A smoke suppressant additive for halogenated polymer compositions which consists of a mixture of from 30 to 70% by weight of zinc oxide and from 70 to 30% by weight of caustic calcined magnesium...
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4988561 |
Paper coated with synthetic alkali metal aluminosilicates
A family of novel and unique synthetic alkali metal alumino-silicates (SAMS) are produced by the hydrothermal reaction between kaolin and alkali metal silicates. The integrated composition of the...
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