Patent application number | Description | Published |
20090030162 | Polyether-Functional Siloxanes, Polyether Siloxane-Containing Compositions, Methods For The Production Thereof And Use Thereof - The present invention provides a linear, cyclic or branched polyether-functional siloxane or a mixture of polyether-functional siloxanes of the general formula (I) R[—O | 01-29-2009 |
20100080746 | METHOD FOR PRODUCING HIGHER SILANES - The invention relates to a method for producing dimeric and/or trimeric silicon compounds, in particular silicon halogen compounds. The claimed method is also suitable for producing corresponding germanium compounds. The invention also relates to a device for carrying out said method to the use of the produced silicon compounds. | 04-01-2010 |
20100266489 | REMOVAL OF FOREIGN METALS FROM INORGANIC SILANES - The invention relates to a method for the treatment of a composition containing inorganic silanes and at least one foreign metal and/or a compound containing a foreign metal, wherein the composition is brought in contact with at least one adsorption agent, and for obtaining the composition, in which the content of foreign metal and/or of a compound containing a foreign metal is reduced, and to a corresponding composition having a reduced foreign metal content, and further to the use of organic resins, activated carbons, silicates, and/or zeolites for the reduction of foreign metals and/or compounds containing foreign metals in compositions of inorganic silanes. | 10-21-2010 |
20100270296 | LARGE CONTAINER FOR HANDLING AND TRANSPORTING HIGH-PURITY AND ULTRA HIGH PURITY CHEMICALS - The invention relates to an empty container ( | 10-28-2010 |
20100274028 | REMOVAL OF POLAR ORGANIC COMPOUNDS AND EXTRANEOUS METALS FROM ORGANOSILANES - The invention relates to a process for treating a composition comprising organosilanes and at least one polar organic compound and/or at least one extraneous metal and/or a compound containing extraneous metal, wherein the composition is contacted with at least one adsorbent and a composition in which the content of the organic polar compound and/or of the extraneous metal and/or of the compound containing extraneous metal is reduced is subsequently obtained, and also to a corresponding composition in which the content of polar organic compounds and/or extraneous metals has been reduced to traces, and to the use of organic resins, activated carbons, silicates and/or zeolites for reducing the amounts of the compounds mentioned. | 10-28-2010 |
20100278706 | METHOD FOR REDUCING THE CONTENT IN ELEMENTS, SUCH AS BORON, IN HALOSILANES AND INSTALLATION FOR CARRYING OUT SAID METHOD - 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/or aluminum-containing compounds of technically pure halosilanes for producing purified halosilanes, especially high-purity chlorosilanes. The invention further relates to an installation for carrying out said method. | 11-04-2010 |
20100296994 | 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. | 11-25-2010 |
20110052474 | 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 halosilanes for producing high-purity halosilanes, especially high-purity chlorosilanes. The invention further relates to an installation for carrying out said method. | 03-03-2011 |
20110150741 | PRODUCTION OF SILICON BY REACTING SILICON OXIDE AND SILICON CARBIDE, OPTIONALLY IN THE PRESENCE OF A SECOND CARBON SOURCE - The invention relates to a method for producing silicon by reacting silicon oxide at an elevated temperature, silicon carbide and, optionally, a second carbon source being added to the reaction mixture. The invention further relates to a composition that can be used in the disclosed method. The essential part of the invention is the use of silicon carbide as a reaction initiator and/or reaction accelerator during the production of silicon or, alternatively, in nearly equimolar amounts for the production of silicon. | 06-23-2011 |
20110175024 | METHOD FOR PRODUCING HIGH-PURITY SILICON CARBIDE FROM HYDROCARBONS AND SILICON OXIDE THROUGH CALCINATION - The invention relates to a method for producing silicon carbide through reaction of silicon oxide and a carbon source comprising a hydrocarbon at high temperature, in particular to a technical method for producing silicon carbide or for producing compositions containing silicon carbide. The invention further relates to a high-purity silicon carbide, to compositions containing the same, to the use thereof as a catalyst and for the production of electrodes and other items. | 07-21-2011 |
20110182796 | METHOD FOR THE PYROLYSIS OF CARBOHYDRATES - The present invention relates to methods for the technical pyrolysis of a carbohydrate or carbohydrate mixture at an elevated temperature while adding silicon oxide, to a pyrolysis product obtainable in this way, and to the use thereof as a reducing agent for the production of solar silicon from silicic acid and carbon at a high temperature. | 07-28-2011 |
20110184205 | REMOVAL OF EXTRANEOUS METALS FROM SILICON COMPOUNDS BY ADSORPTION AND/OR FILTRATION - The invention relates to a process for treating a composition containing silicon compounds, especially organosilanes and/or inorganic silanes, and at least one extraneous metal and/or a compound containing extraneous metal, wherein the composition is contacted with at least one adsorbent and/or a first filter and then a composition in which the content of the extraneous metal and/or of the compound containing extraneous metal has been reduced is obtained. The invention further relates to the use of organic resins, activated carbon, silicates and/or zeolites and/or else of at least one filter with small pore sizes to reduce the level of the compounds mentioned. | 07-28-2011 |
20110262336 | PRODUCTION OF SOLAR-GRADE SILICON FROM SILICON DIOXIDE - The invention relates to a complete method for producing pure silicon that is suitable for use as solar-grade silicon, comprising the reduction of a silicon oxide, purified by acidic precipitation from an aqueous solution of a silicon oxide dissolved in an aqueous phase, using one or more pure carbon sources, the purified silicon oxide being obtained, in particular, by the precipitation of a silicon oxide dissolved in an aqueous phase in an acidifier. The invention also relates to a formulation containing an activator and to a device for producing silicon, a reactor and electrodes. | 10-27-2011 |
20120183464 | PROCESS AND USE OF AMINO-FUNCTIONAL RESINS FOR DISMUTATING HALOSILANES AND FOR REMOVING EXTRANEOUS METALS - The invention relates to a process for dismutating at least one halosilane and reducing the content of extraneous metal and/or a compound containing extraneous metal in the at least one halosilane and in the at least one silane obtained, by contacting at least one halosilane of the general formula I, H | 07-19-2012 |
20120214005 | METHOD FOR PRODUCING HYDRIDOSILANES - The invention relates to a method for producing hydridosilanes from halosilanes by a) reacting i) at least one halosilane of the generic formula Si | 08-23-2012 |
20130043893 | USE OF SPECIFIC RESISTIVITY MEASUREMENT FOR INDIRECT DETERMINATION OF THE PURITY OF SILANES AND GERMANES AND A CORRESPONDING PROCESS - The invention relates to a method for indirectly determining the purity of silanes and germanes using a device for measuring specific resistance. The invention further relates to a system for industrially producing and/or filling containers with silanes or germanes, including a quality control in which a device is used for measuring specific resistance. | 02-21-2013 |
20130294995 | SELECTIVE SPLITTING OF HIGH ORDER SILANES - The invention relates to a process for preparing monomeric and/or dimeric halogen- and/or hydrogen-containing silicon compounds from oligomeric inorganic silanes having three or more directly covalently interconnected silicon atoms substituted by substituents selected from halogen, hydrogen and/or oxygen by reacting the oligomeric silane over a nitrogen-containing catalyst in the presence of hydrogen halide. | 11-07-2013 |
20130323151 | MONOCHLOROSILANE, PROCESS AND APPARATUS FOR THE PREPARATION THEREOF - The invention relates to a process for preparing monochlorosilane by reaction of monosilane and dichlorosilane in the presence of a catalyst. In the process of the invention, monochlorosilane is formed by comproportionation of monosilane and dichlorosilane. The invention further relates to the use of the monochlorosilane produced and also a plant for carrying out the process. | 12-05-2013 |
20140178284 | 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 an alternating voltage of the frequency f, and wherein at least one electromagnetic pulse having the repetition rate g is coupled into the plasma, the voltage component of which pulse has an edge steepness in the rising edge of 10 V ns-1 to 1 kV ns-1 and a pulse width b of 500 ns to 100 μs, wherein a liquid phase is obtained, and b) pure hexachlorodisilane or Ge2Cl6 is obtained from the liquid phase. | 06-26-2014 |
20140193321 | METHOD FOR PRODUCING HIGHER SILANES - The invention relates to a method for producing dimeric and/or trimeric silicon compounds, in particular silicon halogen compounds. The claimed method is also suitable for producing corresponding germanium compounds. The invention also relates to a device for carrying out said method to the use of the produced silicon compounds. | 07-10-2014 |