Zirconium Sulfide置于cl2体系中,用 Neat (No Solvent) 用作溶剂,化学反应生成氯化锆(Iv) 参考文献:Picon,M.,Comptes Rendus Hebdomadaires Des Seances De L'Academie Des Sciences,1933,Vol. 197,P. 151-153 标题:Picon,M.,Comptes Rendus Hebdomadaires Des Seances De L'Academie Des Sciences,1933,Vol. 197,P. 151-153
专利信息
专利号:US-6479685-B2 优先权日:1998-01-09 标题 :Metallocene catalysts for synthesis of high-melting polyolefin copolymer elastomers 发明人:WAYMOUTH ROBERT M; KRAVCHENKO RAISA L; MACIEJEWSKI PETOFF JENNIFER; HUNG JOYCE 权利人:TRUSTEES OF THE LELAND STANDAR 摘要:Metallocene catalysts having plural coordination geometries for synthesis of high melting polyolefin copolymers suitable as thermoplastic elastomers. The inventive catalysts comprise unbridged, substituted or unsubstituted cyclopentadienyl metallocene catalysts that are capable of inter-converting between states with different polymerization or copolymerization characteristics, which interconversion is controlled by selecting the substituents of the cyclopentadienyl ligands so that the rate of interconversion of the two states is within several orders of magnitude of the rate of formation of a single polymer chain. Where r i >r f the polymer can be characterized as multiblock; where r i 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-2022297083-A1 优先权日:2019-08-27 标 题 :Continuous Synthesis Of Porous Coordination Polymers In Supercritical Carbon Dioxide 发明人:RASMUSSEN ELIZABETH G; KRAMLICH JOHN C; NOVOSSELOV IGOR V 权利人:UNIV WASHINGTON 摘要:This disclosure relates generally relates to methods and systems useful for continuous synthesis of materials in super-critical carbon dioxide (sCO 2 ). More particularly, this disclosure relates to methods and systems useful for continuous synthesis of coordination polymers, such as metal-organic frameworks (MOFs) and/or covalent organic frameworks (COFs), in sCO 2 .
专利号:US-2008119665-A1 优先权日:2004-09-07 标 题:Process for the Synthesis of Zirconium Carboxylates 发明人:FRITZ PETER; BOLT HEINZ; SCHERSCHLICHT KARL-HEINZ; MOSA FUAD; ALI TALAL K; AL-OTAIBI SULTAN 权利人:FRITZ PETER; BOLT HEINZ; SCHERSCHLICHT KARL-HEINZ; MOSA FUAD; ALI TALAL K; AL-OTAIBI SULTAN 摘要:A process for the synthesis of zirconium tetra carboxylates is disclosed. To overcome the disadvantageous characteristics of the currently used production process, which include highly corrosive starting substances and products, and complex removal of HCl, ZrCI 4 is suspended in an apolar solvent and reacted with the anhydride of an organic acid. The sole products of this reaction are slightly corrosive Zr tetra carboxylate and an organic acid chloride, which is a valuable basic chemical in the chemicals and pharmaceuticals industry. The reactors required for the synthesis need not necessarily consist of glass and/or enamel, but may instead be manufactured from stainless steel, which is cheaper. Apparatuses for the removal and treatment of hydrochloric acid are not necessary.
专利号:US-11655264-B2 优先权日:2015-11-25 标题:Metallocene compounds, and preparation and use thereof for synthesis of poly-alpha-olefins as lubricating base oil 发明人:WEI DONGCHU; LI BING 权利人:APALENE TECH CO LTD JIAXING 摘要:The present invention relates to a metallocene compound, and preparation and use thereof, and the compound can be used as a catalyst for synthesis of poly-α-olefin as lubricating base oil. The metallocene compound includes a substituted aryl group, a bridged atom, an optionally unsubstituted, 3-mono-substituted or 3,6-disubstituted 5H-indeno [1,2-b] pyridyl group or optionally unsubstituted, 3-mono-substituted or 3,6-disubstituted 5H-indeno [1,2-b] thiopyranyl group, and a metal coordination group. As a catalyst, the metallocene compound is shown to be structurally stable and high in catalytic efficiency, and the preparation of the catalyst is relatively easy in operation, high in yield, low in cost, low in pollution and easy to scale up for industrial production.
专利号:US-6025492-A 优先权日:1996-08-30 标 题 :Synthesis of a hydrazone β-keto ester by the reaction with a diazo ester 发明人:SHAH AJIT S; CLARK JERRY D; MA YINONG; PETERSON JAMES C; PATELIS LEFTERIS 权利人:MONSANTO CO 摘要:The present invention relates to the synthesis of a hydrazone β-keto ester by the reaction of an alkyl diazoester with a hydrazone aldehyde in the presence of a Lewis acid In a preferred embodiment, the hydrazone β-keto ester is then converted into a pyridazinone compound by the reaction with an alkyl acid chloride in the presence of a base, followed by acidification. A process for the production of a hydrazone aldehyde, which comprises contacting a hydrazine and glyoxal, is also described.