CAS: 1303-86-2; Boric Anhydride

Borane 反应生成氧化硼
参考文献:Koikeh,Norio;Yamasaki,Kehniti;Matsueh,Xirosi;Syutani,Kodzi
标题:Koikeh,Norio;Yamasaki,Kehniti;Matsueh,Xirosi;Syutani,Kodzi

专利信息

专利号:US-7897135-B2
优先权日:2004-09-27
标 题 :Carbon combustion synthesis of oxides
发明人：MARTIROSYAN KAREN S; LUSS DAN
权利人:UNIV HOUSTON
摘要:The present invention is generally directed to a novel, economic synthesis of oxide ceramic composites. Methods of the present invention, referred to as carbon combustion synthesis of oxides (CCSO), are a modification of self-propagating high-temperature synthesis (SHS) methods in which the heat needed for the synthesis is generated by combustion of carbon in oxygen rather than that of a pure metal. This enables a more economic production of the ceramic material and minimizes the presence of intermediate metal oxides in the product. The reactant mixture generally comprises at least one oxide precursor (e.g., a metal or non metal oxide, or super oxide, or nitride, or carbonate, or chloride, or oxalate, or halides) as a reactant, but no pure metal. Pure carbon in the form of graphite or soot is added to the reactant mixture to generate the desired heat (upon ignition). The mixture is placed in a reactor and exposed to gaseous oxygen. The high-temperature exothermic reaction between the carbon and oxygen generates a self-sustaining reaction in the form of a propagating temperature wave that causes a reaction among the reactants. The reaction proceeds rapidly following ignition, and the final product comprises simple and/or complex oxides of elements present in the oxide precursor(s). CCSO also enables synthesis of oxides that cannot be produced by conventional SHS, such as when the pure metal is pyrophoric (such as Li or La) or such as when it melts at room temperature (e.g., Ga) or such as the combustion heat of the metal is relatively low.

专利号:US-9295978-B2
优先权日:2012-02-15
标题:Catalyst and method for the direct synthesis of dimethyl ether from synthesis gas
发明人：SCHÄFER ALEXANDER; MADON ROSTAM JAL; VON FEHREN THORSTEN
权利人:BASF CORP
摘要:Catalysts and methods for their manufacture and use for the synthesis of dimethyl ether from syngas are disclosed. The catalysts comprise ZnO, CuO, ZrO 2 , alumina and one or more of boron oxide, tantalum oxide, phosphorus oxide and niobium oxide. The catalysts may also comprise ceria. The catalysts described herein are able to synthesize dimethyl ether directly from synthesis gas, including synthesis gas that is rich in carbon monoxide.

专利号:US-3777009-A
优先权日:1971-08-05
标题:Method for direct melt synthesis of intermetallic compounds
发明人：MENASHI W; WENCKUS J; CASTONGUAY R
权利人:LITTLE INC A
摘要:METHOD AND APPARATUS FOR THE MELT SYNTHESIS OF GROUP III-V, MIXED III-V, II-VI, II-IV-VI AND II-III-V COMPOUNDS, AT LEAST ONE OF THE COMPONENTS FORMING THE COMPOUNDS BEING HIGHLY VOLATILE UNDER THE CONDITIONS OF SYNTHESIS. THE METAL COMPONENTS ARE PLACED IN A REACTION VESSEL WHICH IS SEALED BY A LIQUID SELANT IN COMBINATION WITH A MECHANICAL SEAL PRIOR TO HEATING THE REACTANTS TO A TEMPERATURE AT WHICH ONE OR MORE OF THE REACTANTS DEVELOPS AN APPRECIABLE VAPOR PRESSURE. THE ATMOSPHERE SURROUNDING THE REACTION VESSEL IS PRESSURIZED TO A PRESSURE ABOVE THE MAXIMUM VAPOR PRESSURE DEVELOPED BY THE REACTANTS DURING THE MELT SYNTHESIS WHICH IS ACCOMPLISHED BY HEATING THE REACTANTS. THE COMBINATION OF MECHANICAL AND LIQUID SEAL IS OF A CHARACTER TO PERMIT DIFFUSION BY HIGH-PRESSURE GAS THROUGH IT.

专利号:US-2009218735-A1
优先权日:2005-08-16
标题:Method of synthesis of ceramics
发明人：ABDUEV ASLAN KHAJIMURATOVICH; ASVAROV ABIL SHAMSUDINOVICH; AKHMEDOV AKHMED KADIEVICH; KAMILOV IBRAGIMKHAN KAMILOVICH
权利人:OTKRYTOE AKTSYONERNOE OBSHCHES
摘要:The present invention relates to producing ceramic targets, which serves as a material source for magnetron, electron-beam, ion-beam and other film applying methods in micro-, opto-, nano-electronics. The aim of the proposed invention is to reduce the doping level of ceramics by non-controllable impurities, to increase a ceramic density and to improve performance characteristics of ceramic targets. In the method for synthesizing the ceramics doped by a low-melting metal consisting in that a mixture of components is pressed and sintered; as a doping additive, the mixture of components contains a low-melting metal and the surface of the main component particles is covered and moistened prior to pressing by the doping metal layer by grinding the mixture of the components. The grinding can be carried out at a melting temperature of the low-melting metal. In a particular case, for the synthesis of zinc oxide ceramic doped with gallium, the mixture of zinc oxide powder with gallium is triturated at a gallium melting temperature. The component mixture can contain a boron compound, as a binder and a doping additive, forming boron oxide during sintering.

专利号:US-5679864-A
优先权日:1995-11-03
标题:Process for the synthesis of curcumin-related compounds
发明人：KRACKOV MARK HARRY; BELLIS HAROLD EDWARD
权利人:GENE PRINT INC
摘要:The invention is directed to a process for the synthesis of curcumin and curcumin-related compounds by reacting the enol form of a 2,4-diketone with a monocarbocyclic aldehyde in the presence of an organic amine catalyst. The reactants are dissolved in a highly polar, aprotic organic solvent. The curcumin-related product is recovered in crystalline form by precipitation from the reaction mass and solvent recrystallization.

专利号:US-7507864-B2
优先权日:2006-08-01
标题:Method for the synthesis of curcumin analogues
发明人：MILLER JEFFREY CHRISTOPHER; MITCHELL MIGUEL O
权利人:SALISBURY UNIVERSITY
摘要:The present invention relates to improved methods for achieving the synthesis of 1,7-diaryl-1,6-heptadiene-3,5-diones, and in particular curcumin and its analogues. The invention provides a process for synthesizing such compounds in substantial yield and purity using environmentally benign processes and materials. The invention also relates to the use of such synthesized products in the treatment of Alzheimer's Disease and other diseases.