Spawnt Private S.a.r.l Patent applications |
Patent application number | Title | Published |
20140335006 | METHOD FOR PRODUCING TETRAHALOSILANES - A method produces tetrahalosilanes (SiX | 11-13-2014 |
20140093443 | STORAGE MATERIAL AND METHOD FOR OBTAINING H-SILANES THEREFROM - A storage material for obtaining H-silanes which is present in the form of a hydrogenated polysilane (HPS), as a pure compound or as a mixture of compounds having on average at least six direct Si—Si bonds, the substituenis of which predominantly consist of hydrogen and in the composition of which the atomic ratio of sabstitueot to silicon is at least 1:1. | 04-03-2014 |
20140010717 | HYRDROGEN GENERATOR FOR FUEL CELLS - The invention relates to a hydrogen generator for fuel cells based on silanes. A process for supplying a fuel cell with hydrogen includes the steps: intermediate storage of (poly)silanes or (poly)silane solutions; transfer of the (poly)silanes to a reaction chamber; reaction or hydrolysis of the silanes or silane solutions in the reaction chamber with an aqueous solution to liberate H2; removal of the solid and/or liquid reaction products from the reaction chamber; transfer of the H2 formed to the fuel cell. | 01-09-2014 |
20130270102 | METHOD FOR PRODUCING FLUORINATED POLYSILANES - The invention relates to a method for producing fluorinated polysilanes. Hydrogen fluoride and/or hexafluorosilicic acid, which are obtained in particular during acid digestion of mineral phosphates in the production of phosphate fertilisers, are used for the production of SiF4. The SiF4 obtained is thermally or plasma-chemically converted to fluorinated polysilane. The method is particularly efficient and cost-effective. | 10-17-2013 |
20130243683 | METHOD FOR THE PRODUCTION OF HIGH-PURITY SILICON - A method for producing high-purity silicon is described. SiCl4 is produced from Si02-containing starting materials in a carbochlorination process, and the high-purity silicon is obtained from said SiCl4 in further steps of the method. No elemental silicon is added in any of the steps, resulting a particularly efficient and inexpensive method. | 09-19-2013 |
20130171052 | Process for Removing Nonmetallic Impurities from Metallurgical Silicon - The invention describes a process for removing nonmetallic impurities from metallurgical silicon. A melt is produced from metallurgical silicon and halide-containing silicon. As a result, the impurities are sublimed out and removed from the melt in the form of nonmetal halides. Compared with the known process, in which gaseous halogen is blown through an Si melt, the novel process can be carried out in a particularly simple and efficient manner. | 07-04-2013 |
20130116472 | PROCESS FOR PREPARING UREA - A method of producing urea includes reacting SiO | 05-09-2013 |
20130043429 | CHLORINATED OLIGOGERMANES AND METHOD FOR THE PRODUCTION THEREOF - A chlorinated oligogermane as a pure compound or mixture of compounds which each have at least one direct Ge—Ge bond, substituents of which include chlorine or chlorine and hydrogen and atom ratio for substituent:germanium is at least 2:1 in the composition thereof, wherein a) the mixture has on average a Ge:Cl ratio of 1:1 to 1:3, or the pure compound has a Ge:Cl ratio of 1:2 to 1:2.67, and b) the mixture has an average number of germanium atoms of 2 to 8. | 02-21-2013 |
20130039834 | METHOD FOR PRODUCING AMMONIA - A method produces ammonia by reacting N | 02-14-2013 |
20130039830 | 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 SiX | 02-14-2013 |
20130017138 | METHOD FOR PRODUCING HEXACHLORODISILANEAANM Auner; NorbertAACI GlashuettenAACO DEAAGP Auner; Norbert Glashuetten DEAANM Bauch; ChristianAACI MuldensteinAACO DEAAGP Bauch; Christian Muldenstein DEAANM Holl; SvenAACI GueckingenAACO DEAAGP Holl; Sven Gueckingen DEAANM Deltschew; RumenAACI LeipzigAACO DEAAGP Deltschew; Rumen Leipzig DEAANM Mohsseni; JavadAACI Bitterfeld-WolfenAACO DEAAGP Mohsseni; Javad Bitterfeld-Wolfen DEAANM Lippold; GerdAACI LeipzigAACO DEAAGP Lippold; Gerd Leipzig DEAANM Gebel; ThoralfAACI DresdenAACO DEAAGP Gebel; Thoralf Dresden DE - A method produces hexachlorodisilane. Hexachlorodisilane is obtained by oxidative splitting of the chlorinated polysilane of the empirical formula SiClx (x=0,2-0,8) using chlorine gas. The hexachlorodisilane is selectively obtained with a high yield. | 01-17-2013 |
20130004666 | METHOD FOR PRODUCING HYDROGENATED POLYGERMANE AND HYDROGENATED POLYGERMANE - A process for preparing hydrogenated polygermane as a pure compound or mixture of compounds, including hydrogenating halogenated polygermane. | 01-03-2013 |
20130001467 | KINETICALLY STABLE CHLORINATED POLYSILANES AND PRODUCTION AND USE THEREOF - Kinetically stable halogenated polysilanes include mixture of compounds having respectively at least four silicon atoms bound together, the substituents thereof comprising chlorine, and chlorine and hydrogen, and in the composition thereof, the atomic ratio of substituent to silicon is at least 1:1, wherein a) the kinetically stable halogenated polysilanes have a kinetically high stability in relation to oxidative-splitting by chlorine, and the degree of conversion at temperatures of 120° C. within 10 hours with an excess of chlorine gas at 1013 hPa does not exceed 30 mol %, and b) the kinetically stable halogenated polysilanes have a percentage of branching points in the polysilane molecules of more than 8 mol %. | 01-03-2013 |
20120321540 | METHOD FOR PRODUCING OLIGOSILANES - A method for producing oligosilanes by reacting halogenated oligosilanes with a metal hydride includes a reaction occurring in the presence of a catalyst and an alkali metal halide, the catalyst including a halide of a multivalent metal; and the reaction occurs in an ethereal solution. | 12-20-2012 |
20120319041 | METHOD FOR PRODUCING HALOGENATED POLYSILANES - A process for preparing a halogenated polysilane H | 12-20-2012 |
20120315392 | METHOD FOR PRODUCING HYDROGENATED POLYGERMASILANE AND HYDROGENATED POLYGERMASILANE - A process for preparing hydrogenated polygermasilane as a pure compound or mixture of compounds includes hydrogenating halogenated polygermasilane. | 12-13-2012 |
20120313037 | 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. | 12-13-2012 |
20120308464 | 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 polysilanes. The thermolytic decomposition of long-chain halogenated polysilanes diluted with low-molecular halosilanes is carried out under an atmosphere of halosilanes, thereby ensuring the production of such products at industrial scale in a simple and cost-effective manner. | 12-06-2012 |
20120145533 | METHOD FOR THE PRODUCTION OF SILICON FROM SILYL HALIDES - The present invention relates to a method for the production of silicon from silyl halides. In a first step, the silyl halide is converted, with the generation of a plasma discharge, to a halogenated polysilane, which is subsequently decomposed to silicon, in a second step, with heating. | 06-14-2012 |
20120070363 | METHOD FOR PRODUCING AMMONIA - A method for producing ammonia includes reacting SiO | 03-22-2012 |
20120027643 | Process and apparatus for generating hydrogen - A solution is to be created, with a method and a device for generating hydrogen, in which silicon and/or an alloy that contains silicon is reacted in a reaction vessel ( | 02-02-2012 |
20110284796 | Halogenated Polysilane and Thermal Process for Producing the Same - The present invention relates to a halogenated polysilane as a pure compound or mixture of compounds each having at least one direct Si—Si bond, whose substituents consist exclusively of halogen or of halogen and hydrogen and in whose composition the atomic ratio substituent:silicon is greater than 1:1. | 11-24-2011 |
20110150740 | 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 or of halogen and hydrogen and in the composition of which the atomic ratio of substituent to silicon is at least 1:1. | 06-23-2011 |