CAS: 112926-00-8; Silica Gel

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CAS号10026-04-7 四氯化硅 | CAS号80937-33-3 oxygen | CAS号38404-42-1 3,4-二甲基苯甲酸甲酯 | CAS号7446-08-4 二氧化硒 | CAS号463-58-1 羰基硫 | CAS号7783-61-1 四氟化硅 | CAS号75-73-0 四氟化碳 | CAS号124-38-9 二氧化碳 | CAS号201230-82-2 carbon monoxide | CAS号7664-39-3 氟化氢 | CAS号7429-90-5 铝片 | CAS号17685-52-8 十二羰基三铁

专利信息

专利号:US-10285218-B1
优先权日:2018-05-14
标题 :Direct and selective area synthesis of graphene using microheater elements
发明人：GAITAS ANGELO; PALA NEZIH
权利人:GAITAS ANGELO; PALA NEZIH; THE FLORIDA INTERNATIONAL UNIV BOARD OF TRUSTEES
摘要:A method of synthesis of graphene can include: depositing a carbon (C) layer on a substrate, for example a substrate comprising a silicon (Si) layer and an oxide (SiO 2 ) layer on the Si layer; depositing a metal layer on the C layer; preparing the substrate including the C layer and the metal layer in a chamber; maintaining a pressure of the chamber under 1 atm, for example under 1 Torr; flowing an inert gas in the chamber; contacting a thermal probe tip on the metal layer; heating the thermal probe tip to a temperature of more than 250° C. such that graphene is formed on the substrate; and etching the substrate. The metal layer can be a tin layer.

专利号:US-2009326281-A1
优先权日:2008-06-30
标题:Catalytic system and process for direct synthesis of dimethyl ether from synthesis gas
发明人：APPEL LUCIA GORENSTIN; DE FARIAS ANDREA MARIA DUARTE; ESTEVES ANGELA MARIA LAVOGADE; FRAGA MARCO ANDRE; RAMOS BARBOSA FLAVIA DE SOUZA; BORGES LUIZ EDUARDO PIZZARO; MONTEIRO JOSE LUIZ FONTES; HUERTAS FLORES JHONNY OSWALDO; DA SILVA MARIA ISABEL PAIS; SOUSA AGUIAR EDUARDO FALABELLA
权利人:PETROLEO BRASILEIRO SA; INT INST NAC DE TECNOLOGIA
摘要:A mixed-bed catalytic system and its activation for direct synthesis of dimethyl ether from synthesis gas are described, comprising a catalyst for methanol synthesis and the zeolite ferrierite in its acid form as the methanol dehydrating component, the two being mixed physically in the form of powder of defined granulometry or as pellets. Another object of the present invention is a process for production of the acid form of the zeolite ferrierite. Another object of the present invention is a process for direct synthesis of dimethyl ether from a synthesis gas, using the catalytic system of the present invention.

专利号:US-2007249874-A1
优先权日:2004-06-23
标题 :Synthesis of the Micro-Porous Silica Gel and Its Application to the Preparation of Catalysts for C2 Oxygenates Synthesis from Syngas
发明人：LUO HONGYUAN; DING YUNJIE; YIN HONGMEI
权利人:BP PLC
摘要:A synthesis of the micro-porous silica gel and its application to preparation of catalysts for C 2 oxygenates synthesis from syngas is invented. The small particles of silica gel which are, produced by sol gel process are heated in a basic solution, followed by drying and/or calcinations, and thus form micro-porous silica as catalyst support. The basic solution can be one or a mixed solution of hydroxides, carbonates, bicarbonates, formates and acetates of alkali metal and ammonium. The obtained micro-porous silica can be impregnated with the solutions of rhodium salt and other transition element salts (as promoter precursors), followed by drying and/or calcinations, thus forming a micro-porous silica supported rhodium based catalyst. The rhodium salt can be RhCl 3 or Rh(NO 3 ) 3 . The promoter precursors can be water-dissolvable transition metal salts, rare earth metals salts, alkali metal salts and alkali earth metal salts. The obtained catalysts show high activity and selectivity in the synthesis of C 2 -oxygenates by the hydrogenation of CO under mild process conditions.

专利号:US-2015105479-A1
优先权日:2012-04-24
标 题:Catalytically active body for the synthesis of dimethyl ether from synthesis gas
发明人：SCHÄFER ALEXANDER; FEYEN MATHIAS; PARVULESCU ANDREI-NICOLAE; Müller Ulrich; SCHAACK BERND BASTIAN
权利人:BASF SE
摘要:The invention relates to a catalytically active body for the synthesis of dimethyl ether from synthesis gas. In particular, the invention relates to an improved catalytically active body for the synthesis of dimethyl ether, whereby the components of the active body comprise a methanol active component and an acid component comprising a zeolitic material being crystallized by means of one or more alkenyltrialkylammonium cation R 1 R 2 R 3 R 4 N + -containing compounds as structure directing agent. Furthermore, the present invention concerns a method for the preparation of a catalytically active body, the use of the catalytically active body and a method for the preparation of dimethyl ether from synthesis gas.

专利号:US-2024075466-A1
优先权日:2021-04-09
标 题:One-Pot Synthesis of Transition Metal-Promoted Chabazites
发明人：VAN TENDELOO LEEN; SCHUETZE FRANK-WALTER; VERHEYEN ELKE JANE JUNE
权利人:UMICORE AG & CO KG
摘要:The invention provides methods for a one-pot synthesis of molecular sieves of the CHA-type. The method uses molecular and non-molecular sieves as sources of silicon and aluminum. A first OSDA is selected from tetraethylenepentamine (TEPA) and triethy-lenepentamine (TETA). The synthesis mixture comprises a first metal selected from copper, iron and zinc. Optionally, the synthesis mixture may furthermore comprise a second OSDA and/or a second metal selected from manganese, cesium, magnesium, calcium, strontium, barium, yttrium, titanium, zirconium, niobium, iron, zinc, silver, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and mixtures thereof. The molecular sieves of the CHA-type obtainable by the method can be used as SCR-catalytically active substances for the removal of nitrogen oxides from exhaust gases of combustion engines.

专利号:US-2007287843-A1
优先权日:2004-04-07
标题 :Methods and Intermediates for the Synthesis of Delta-9 Tetrahydrocannabinol
发明人：CABAJ JOHN E; PARIZA RICHARD J; LUKESH JULIE M
权利人:CABAJ JOHN E; PARIZA RICHARD J; LUKESH JULIE M
摘要:Processes are disclosed for the synthesis of Delta-9 tetrahydrocannabinol which result in an improved Y-THC/Y-THC ratio, and intermediates are disclosed that may be used in the synthesis of Delta-9 tetrahydrocannabinol such that improved Y-THCIY-THC ratios are achieved. The intermediates may be cyclic compounds prepared from 2-Carene. There is also provided a scaleable process for the preparation of (+)-p-menth-2-ene-1,8-diol, another intermediate used in the synthesis of delta-9-tetrahydrocannibinol.