CAS: 22306-37-2; Bismuth(Iii) Acetate

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专利信息

专利号:US-9518219-B2
优先权日:2014-01-30
标题 :Hydrothermal synthesis of bismuth germanium oxide
发明人：BOYLE TIMOTHY J
权利人:SANDIA CORP
摘要:A method for the hydrothermal synthesis of bismuth germanium oxide comprises dissolving a bismuth precursor (e.g., bismuth nitrate pentahydrate) and a germanium precursor (e.g., germanium dioxide) in water and heating the aqueous solution to an elevated reaction temperature for a length of time sufficient to produce the eulytite phase of bismuth germanium oxide (E-BGO) with high yield. The E-BGO produced can be used as a scintillator material. For example, the air stability and radioluminescence response suggest that the E-BGO can be employed for medical applications.

专利号:US-6133473-A
优先权日:1998-06-25
标 题 :Synthesis of carbamate compounds
发明人：BERRIER JOHN VINCENT
权利人:ROHM & HAAS
摘要:Disclosed is a method for the preparation of carbamate compounds substantially free of by-products; the carbamate compounds being prepared by reacting an isocyanate with a hydroxylated compound in the presence of certain catalysts that increase the rate of carbamylation while decreasing the rate of by-product formation.

专利号:US-6210752-B1
优先权日:1999-03-24
标 题:All-alkoxide synthesis of strontium-containing metal oxides
发明人：BOYLE TIMOTHY J
权利人:SANDIA CORP
摘要:A method for making strontium-containing metal-oxide ceramic thin films from a precursor liquid by mixing a strontium neo-pentoxide dissolved in an amine solvent and at least one metal alkoxide dissolved in a solvent, said at least one metal alkoxide selected from the group consisting of alkoxides of calcium, barium, bismuth, cadmium, lead, titanium, tantalum, hafnium, tungsten, niobium, zirconium, yttrium, lanthanum, antimony, chromium and thallium, depositing a thin film of the precursor liquid on a substrate, and heating the thin film in the presence of oxygen at between 550 and 700° C.

专利号:US-8748726-B2
优先权日:2009-08-17
标题:Synthesis of silver, antimony, and tin doped bismuth telluride nanoparticles and bulk bismuth telluride to form bismuth telluride composites
发明人：PURKAYASTHA ARUP; JOSHI PURUSHOTTAM
权利人:PURKAYASTHA ARUP; JOSHI PURUSHOTTAM; LAIRD TECHNOLOGIES INC
摘要:According to various aspects, exemplary embodiments are provided of thermoelectric materials, which embodiments may have improved figure of merit. In one exemplary embodiment, a thermoelectric material generally includes bismuth telluride nanoparticles, which may be undoped or doped with at least one or more of silver, antimony, tin, and/or a combination thereof. The bismuth telluride nanoparticles may be dispersed in a matrix material comprising particulate bismuth telluride. Methods for making undoped and doped bismuth telluride nanoparticles are also disclosed, which may include a solvothermal method for making bismuth telluride nanoparticles having a size ranging from 1 to 200 nanometers.

专利号:US-8957260-B2
优先权日:2011-02-07
标题 :Process for the oxidation of mesitol
发明人：WEYRAUCH JAN PHILIPP; WEIS MARTINE; TELES JOAQUIM HENRIQUE; EBEL KLAUS; DEGLMANN PETER
权利人:WEIS MARTINE; TELES JOAQUIM HENRIQUE; EBEL KLAUS; DEGLMANN PETER; WEYRAUCH VIVIEN ELLINOR; WEYRAUCH GUNHILD; BASF SE
摘要:The invention relates to a process for the oxidation of mesitol with singlet oxygen, which is released from hydrogen peroxide, this release taking place in the presence of a bismuth compound as catalyst. In the process, 2,4,6-trimethylquinol is formed in high yield and selectivity as product, which can be used in further reactions for the synthesis of vitamins and in particular of vitamin A and vitamin E.

专利号:WO-2007104357-A1
优先权日:2006-03-14
标 题 :Synthesis of amines with catalytic amounts of mild lewis acids
发明人：NUGENT THOMAS CHRISTOPHER; WAKCHAURE VIJAY NARAYAN; EL-SHAZLY MOHAMED MAHMOUD
权利人:UNIV JACOBS BREMEN GMBH; NUGENT THOMAS CHRISTOPHER; WAKCHAURE VIJAY NARAYAN; EL-SHAZLY MOHAMED MAHMOUD
摘要:The invention relates to methods for producing primary, secondary and tertiary amines and corresponding enantiopure or enantioenriched primary or secondary amine products, comprising the steps of reductively aminating a ketone, with a nitrogen auxiliary in the presence of a hydrogenating catalyst and a hydrogenating agent, wherein the reductive animation is performed under the influence of a mild Lewis acid, the mild Lewis acid being present at the onset of the reductive amination in at most 25 mol% of the ketone or the nitrogen auxiliary.