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US20140335007 Method for preparing a trihalosilane  
A method of preparing a trihalosilane comprising the separate and consecutive steps of (i) contacting a copper catalyst with hydrogen gas and a silicon tetrahalide at a temperature of from 500 to...
US20130156676 Method for Preparing a Trihalosilane  
A method of preparing a trihalosilane comprising the separate and consecutive steps of (i) contacting a copper catalyst with hydrogen gas and a silicon tetrahalide at a temperature of from 500 to...
US20110182794 METHOD FOR REMOVING TITANIUM FROM HEXACHLORODISILANE  
The invention relates to a method for removing titanium compounds from hexachlorodisilane, wherein hexachloro-disilane is treated with an organic compound (V) which contains the structural units...
US20110158883 CATALYTIC HYDROGENATION  
The invention relates to a method for the catalytic hydrogenation of halogenated silanes or halogenated germanes, according to which halogenated monosilanes, oligosilanes or polysilanes, or...
US20110008235 METHOD FOR MODERATE TEMPERATURE REUTILIZATION OF IONIC HALIDES  
In one embodiment, the present invention relates generally to a method for reutilizing ionic halides in a production of an elemental material. In one embodiment, the method includes reacting a...
US20110052474 INSTALLATION AND METHOD FOR REDUCING THE CONTENT IN ELEMENTS, SUCH AS BORON, OF HALOSILANES  
The invention relates to a method for reducing the content in elements of the third main group of the periodic system, especially in boron- and aluminum-containing compounds of technically pure...
US20090016947 RECYCLING OF HIGH-BOILING COMPOUNDS WITHIN AN INTEGRATED CHLOROSILANE SYSTEM  
Trichlorosilane production is increased while simultaneously lowering environmental burden due to destruction and disposition of high boilers by feeding high boilers from trichlorosilane...
US20140086815 USE OF SILICON CARBIDE TUBES WITH A FLANGED OR FLARED END  
The invention relates to the use of a ceramic tube composed of silicon carbide variants in processes for converting chlorosilanes, wherein the tube has a flange or a flare at one end and is closed...
US20120319041 METHOD FOR PRODUCING HALOGENATED POLYSILANES  
A process for preparing a halogenated polysilane HpSin−pX(2n+2)−p with n=1 to 50; 0≦p≦2n+1, and X=F, Cl, Br, I, as an individual compound or a mixture of compounds, from a mixture which includes...
US20110229398 FLUIDIZED BED REACTOR, THE USE THEREOF, AND A METHOD FOR THE ENERGY-INDEPENDENT HYDROGENATION OF CHLOROSILANES  
The present invention relates to a device, to the use thereof, and to a method for the substantially energy-independent continuous production of chlorosilanes, particularly for the production of...
US20130216464 CATALYTIC SYSTEMS FOR CONTINUOUS CONVERSION OF SILICON TETRACHLORIDE TO TRICHLOROSILANE  
The invention relates to an improved method for converting silicon tetrachloride having hydrogen in a hydrodechlorination reactor comprising a catalyst. The invention further relates to a...
US20150034500 METAL ORGANIC FRAMEWORKS FOR ELECTRONIC GAS STORAGE  
A metal organic framework (MOF) includes a coordination product of a metal ion and an at least bidentate organic ligand, where the metal ion and the organic ligand are selected to provide a...
US20120308464 METHOD AND DEVICE FOR PRODUCING SHORT-CHAIN HALOGENATED POLYSILANES  
A method and a device produce short-chain halogenated polysilanes and/or short-chain halogenated polysilanes and halide-containing silicon by thermolytic decomposition of long-chain halogenated...
US20070231236 Method of Producing Halosilane and Method of Purifying Solid Fraction  
A method of producing halosilane of the present invention includes the steps of (1) subjecting used slurry 1to a primary centrifugal separation to recover a solid fraction 3b predominantly...
US20110135555 PROCESS FOR PRODUCING FLUORIDE GAS  
Disclosed is a process for producing a fluoride gas that can produces fluoride gases such as BF3, SiF4, GeF4, PF5 or AsF5 at a reduced production cost in a simple manner. The process is...
US20110150740 Halogenated Polysilane and Plasma-Chemical Process for Producing the Same  
The present invention relates to a halogenated polysilane as a pure compound or a mixture of compounds each having at least one direct Si—Si bond, whose substituents consist exclusively of halogen...
US20130101489 FOULING REDUCTION IN HYDROCHLOROSILANE PRODUCTION  
Embodiments of a method for reducing iron silicide and/or iron phosphide fouling and/or corrosion in a hydrochlorosilane production plant are disclosed. Sufficient trichlorosilane is included in a...
US20110038778 SILICON TETRAFLUORIDE BYPRODUCT SEPARATION PROCESS  
Embodiments of the invention provide a system and process for recovering useful compounds from a byproduct composition produced in a silicon tetrafluoride production process.
US20110243825 TETRAHALOSILANE CONVERTER  
A process of converting a tetrahalosilane into a trihalosilane is provided that includes: diluting the tetrahalosilane with hydrogen (H2) to form a mixture; and passing the mixture through a bed...
US20120076714 Heater and Related Methods Therefor  
The invention relates generally to heaters and methods of using the heaters. In certain embodiments, a heater includes a pressure shell having a cylindrical heating cavity, an annular heat shield...
US20110305621 Method Of Continuously Producing Tetrafluorosilane By Using Various Fluorinated Materials, Amorphous Silica And Sulfuric Acid  
The present invention relates to a method of continuously producing tetrafluorosilane (SiF4) by using various fluorinated materials, amorphous silica (SiO2) and sulfuric acid (H2SO4). According to...
US20130142722 METHOD FOR PRODUCTION OF TRICHLOROSILANE AND SILICON FOR USE IN THE PRODUCTION OF TRICHLOROSILANE  
The present invention relates to a method for the production of trichlorosilane by reaction of silicon with HCl gas at a temperature between 250° and 1100° C., and an absolute pressure of 0.5-30...
US20140322121 PROCESSES AND SYSTEMS FOR NON-EQUILIBRIUM TRICHLOROSILANE PRODUCTION  
A catalytic process for converting silicon tetrachloride (STC) into trichlorosilane (TCS) utilizes a metal catalyst such as metal silicide at a low temperature such as 500C, where the STC is...
US20050226803 Process for preparing trichloromonosilane  
A process for preparing trichloromonosilane, in which silicon particles are reacted with hydrogen chloride in a fluidized bed reactor, wherein the silicon particles used are a silicon dust which...
US20070003466 Method for producing tetrafluorosilane  
The invention relates to a method for producing tetrafluorosilane by decomposing hexafluorosilicic acid with sulfuric acid, which comprises: step 1 of decomposing hexafluorosilicic acid in...
US20110158884 Preparation Of Organohalosilanes and Halosilanes  
A semi-continuous process for producing organohalosilanes or halosilanes in a fluidised bed reactor, from silicon-containing contact mass, comprising removing silicon-containing contact mass that...
US20120244059 METHOD FOR MANUFACTURING SILICON TETRACHLORIDE AND METHOD FOR MANUFACTURING SILICON FOR USE IN A SOLAR CELL  
In one aspect of a method for producing silicon tetrachloride comprises a step in which a silicon-containing substance that contains zeolite or preferably spent zeolite, is used for chlorination...
US20100061912 Apparatus for high temperature hydrolysis of water reactive halosilanes and halides and process for making same  
A process for high temperature hydrolysis of halosilanes and halides with the steps of: providing a bed of fluidized particulate material heated to at least 300° C., injecting steam and an excess...
US20110142742 METHOD FOR PURIFICATION OF SILICON TETRACHLORIDE  
An object of the present invention is to provide a method for purification of silicon tetrachloride which solves the problems of separating and removing organic chlorosilanes by distillation or...
US20130004404 METHOD FOR MANUFACTURING TRICHLOROSILANE  
This method for manufacturing trichlorosilane, includes: reacting metallurgical grade silicon with silicon tetrachloride and hydrogen so as to obtain a reaction gas; condensing the reaction gas so...
US20120230901 PROCESS FOR PRODUCTION OF SILICON TETRACHLORIDE  
An aspect of a process for producing silicon tetrachloride comprises chlorinating a silicon-containing substance, preferably a silicon-containing substance that contains a silicic acid biomass, in...
US20150030520 TRICHLOROSILANE PRODUCTION  
A process that includes combining hydrogen chloride, metallurgical grade silicon and a third gas, e.g., tetrachlorosilane, in a reactor, under reaction conditions that include a temperature of...
US20110268641 Process For Recovery Of High Boiling Waste  
Waste streams from different chloromonosilane production processes are combined and reacted in a single recovery process. Useful monosilane species may be obtained with a single recovery process.
US20140105805 PROCESS FOR HYDROGENATING SILICON TETRACHLORIDE TO TRICHLOROSILANE  
The invention provides a process for hydrogenating silicon tetrachloride in a reactor, in which reactant gas containing hydrogen and silicon tetrachloride is heated to a temperature of greater...
US20100296994 CATALYST AND METHOD FOR DISMUTATION OF HALOSILANES CONTAINING HYDROGEN  
The invention relates to a catalyst, the use thereof, and a method for dismutation of halosilanes containing hydrogen, in particular chlorosilanes containing hydrogen.
US20130224098 USE OF A REACTOR WITH INTEGRATED HEAT EXCHANGER IN A PROCESS FOR HYDRODECHLORINATING SILICON TETRACHLORIDE  
The invention relates to a method for converting silicon tetrachloride by means of hydrogen to form trichlorosilane in a modified hydrodechlorination reactor. The invention further relates to a...
US20130177492 METHOD FOR PURIFYING CHLOROSILANES  
The method comprises at least three steps of a hydrogenation step (101) and/or a chlorination step (102), an impurity conversion step (103), and a purification step (104). In the impurity...
US20140050648 PREPARATION OF CHLOROSILANES FROM VERY FINELY DIVIDED ULTRA-PURE SILICON  
The invention provides a process and apparatus for preparing chlorosilane from the reaction of very finely divided ultra-pure silicon with hydrogen chloride, the very finely divided ultra-pure...
US20140314655 CORROSION AND FOULING REDUCTION IN HYDROCHLOROSILANE PRODUCTION  
Methods for reducing iron silicide and/or iron phosphide fouling and/or corrosion in a hydrochlorosilane production plant are disclosed. Sufficient hydrogen is added to a silicon tetrachloride...
US20130039830 METHOD FOR REMOVING IMPURITIES FROM SILICON  
A method for removing impurities from silicon includes A) providing metallic silicon having impurities, B) mixing the metallic silicon with at least one halogenated polysilane of Formula SiXn,...
US20110158885 HIGH PURITY CRYSTALLINE SILICON, HIGH PURITY SILICON TETRACHLORIDE AND PROCESSES FOR PRODUCING THE SAME  
An object of the present invention is to provide more inexpensive high purity crystalline silicon which can satisfy not only a quality required to a raw material of silicon for a solar cell but...
US20090068081 METHOD FOR PURIFYING CHLOROSILANES  
This method for purifying chlorosilanes includes: introducing oxygen (O2) into the chlorosilanes containing a boron impurity and a phosphorous impurity in the presence of an aromatic aldehyde;...
US20110008236 High Purity Silicon-Containing Products and Method of Manufacture  
Silicon-containing products, such as silicon, silicon carbide and silicon nitride, containing less than 0.01 weight percent total mineral impurities and selectively determined carbon-to-silicon...
US20120107216 HYDROCHLORINATION HEATER AND RELATED METHODS THEREFOR  
The systems and method of the invention involve hydrochlorination by providing feed streams with suitable reaction conditions through reactant stream conditioning systems and components. The...
US20140178283 HYDROGENATION OF ORGANOCHLOROSILANES AND SILICON TETRACHLORIDE  
The invention relates to a process for preparing trichlorosilane, characterized in that hydrogen and at least one organic chlorosilane are reacted in a reactor which is operated under...
US20080112875 Method For Producing Trichlorosilane By Thermal Hydration Of Tetrachlorosilane  
Efficient production of trichlorosilane from tetrachlorosilane and hydrogen is effected by reaction at high temperatures over short residence times followed by rapidly cooling the product mixture...
US20130251617 Method of Making a Trihalosilane  
A method of making a trihalosilane comprising contacting an organotrihalosilane according to the formula RS1X3 (I), wherein R is C1-C10 hydrocarbyl and each X independently is halo, with hydrogen,...
US20130216465 POLYSILANES OF MEDIUM CHAIN LENGTH AND A METHOD FOR THE PRODUCTION OF SAME  
Polysilanes of medium chain length as pure compounds or a mixture of compounds, each having at least one direct Si—Si bond, the substituents of the polysilanes consisting exclusively of halogen...
US20140178284 METHOD FOR PRODUCING HIGHER SILANES WITH IMPROVED YIELD  
The invention relates to a method for producing hexachlorodisilane or Ge2CI6, which is characterized in that, in a gas containing SiCI4 or GeCI4, a) a non-thermal plasma is generated by means of...
US20120313037 CHLORIDE-CONTAINING SILICON  
A chlorinated polysilane has the formula SiClx wherein x=0.01−0.8 and which can be produced by thermolysis of a chloropolysilane at a temperature below 600° C.

Matches 1 - 50 out of 159 1 2 3 4 >