CAS: 7440-69-9; Bismuth Atom

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专利信息

专利号:US-10472241-B2
优先权日:2015-10-06
标 题:Process for the synthesis of carbon nanotubes
发明人：GOSWAMI GOPAL KRISHNA; PATIL SWANAND DILIP; VEEDU SREEKUMAR THALIYIL; BALACHANDRAN VIJAI SHANKAR
权利人:RELIANCE INDUSTRIES LTD
摘要:The present disclosure relates to a process for the synthesis of highly crystalline carbon nanotubes (CNTs). Processes known in the art employ post-synthesis processes such as oxidation or hydrothermal treatment to produce CNTs with high crystallinity. The present disclosure produces highly crystalline CNTs at a low growth temperature and without hydrogen flow condition and without employing any post-production process. The process disclosed in the present disclosure produces CNTs having a crystallinity greater than 5 which makes them suitable for various industrial applications.

专利号:US-5856259-A
优先权日:1994-12-21
标 题:Preparation process of supported catalyst for the synthesis of methacrolein and methacrylic acid
发明人：WATANABE SEIGO; YOSHIOKA HITOSHI; IZUMI JINKO
权利人:MITSUBISHI RAYON CO
摘要:A process for producing a supported catalyst for the synthesis of methacrolein and methacrylic acid in which a catalytic active substance comprising a composite oxide containing molybdenum and bismuth as essential components is supported on the inside surface and/or the outside surface of an inert carrier, which comprises the steps of drying a mixed solution or an aqueous slurry containing the compounds of the elements constituting the catalytic active substance, subjecting the dried product to a primary calcination at a temperature in a range of 200°-400° C. to form a catalytic active substance precursor, comminuting the obtained catalytic active substance precursor to such an extent that the medium particle size in the volume-based particle size distribution becomes 10 μm or less, supporting the comminution product on an inert carrier, and subjecting it to a secondary calcination at a temperature which is 100° C. or more higher than the primary calcination temperature.

专利号:WO-9819964-A1
优先权日:1996-11-04
标题:Method for the synthesis of group iii nitride crystals
发明人：ANGUS JOHN C; ARGOITIA ALBERTO; HAYMAN CLIFF C
权利人:UNIV CASE WESTERN RESERVE; ANGUS JOHN C; ARGOITIA ALBERTO; HAYMAN CLIFF C
摘要:A novel method for the synthesis of Group III nitride crystals is disclosed. The method contemplates the reaction of a liquid form of the Group III nitride metal with active nitrogen. The active nitrogen may be generated by a plasma or the thermal decomposition of ammonia and may be neutral, ionic, excited or a mixture thereof. Using the method of the present invention, the crystalline Group III nitride can be grown at pressures of one atmosphere and below. Polycrystalline films grown by this method are of sufficient quality to show luminescence at room temperature.

专利号:US-4443310-A
优先权日:1981-03-12
标题:Photoinitiated synthesis of mercaptans
发明人：ARRETZ EMMANUEL; LANDOUSSY CLAUDE; MIRASSOU ALFRED; OLLIVIER JEAN
权利人:ELF AQUITAINE
摘要:Improvement in the photoinitiated synthesis of mercaptans, in which an ethylenic compound is treated with hydrogen sulphide, preferably under pressure, in the presence of ultraviolet radiation and a photoinitiator involves the use of a xanthenic compound, possibly substituted, as the initiator. Preferably, the xanthenic compounds is employed in conjunction with an organic compound of an element of Group V A of the Periodic Classification of the Elements.

专利号:US-4084936-A
优先权日:1975-08-16
标 题 :Reducing corrosion in reactors used for the synthesis of chromium dioxide
发明人：OHLINGER MANFRED; WAGNER GERHARD; HONECKER GERHARD; STRITZINGER HEINZ; SPAEHN HEINZ
权利人:BASF AG
摘要:In order to reduce corrosion of the inside walls of a reactor made of iron or an iron alloy and used for the synthesis of chromium dioxide by hydrothermal conversion of chromium(VI) oxide with chromium oxides of lower valency, lead or bismuth is added at those points of the reactor at which an aqueous phase occurs during conversion and which do not contact the chromium oxides to be converted. The lead or bismuth may be used in metallic form or in the form of their oxides, hydroxides or salts.

专利号:US-7070757-B2
优先权日:2000-10-02
标 题:Method for producing catalysts consisting of metal of the platinum group by means of electroless deposition and the use thereof for the direct synthesis of hydrogen peroxide
发明人：FISCHER MARTIN; BUTZ THOMAS
权利人:BASF AG
摘要:Catalysts produced by electroless deposition of at least one platinum metal on a nonporous nonmetallic support can be used for the synthesis of hydrogen peroxide from the elements and for the hydrogenation of organic compounds.