专利号:US-2022220061-A1 优先权日:2019-05-09 标 题:Process for the synthesis of the ionic liquid tetraoctylammonium di(2-ethylhexyl)-oxamate (il-5), product obtained and its use in selective metal extraction 发明人:ARRIEGAS ESTEVÃO CORREIA LEAL JOÃO PAULO; DA CUNHA OLIVEIRA FIGUEIRA CARRETAS JOSÉ MANUEL; MARIA CRUZ ADELAIDE; DE JESUS MARIA LEONOR MARIA; RAMOS BATISTA MONTEIRO BERNARDO 权利人:INST SUPERIOR TECNICO 摘要:a) The present invention falls within the area of the synthesis of ionic liquids, namely it concerns a process of synthesis of the ionic liquid tetraoctylammonium di(2-ethylhexyl)-oxamate (IL-5) with a high degree of purity and its use in the extraction and selective separation of metals, namely lanthanides. Thus, it is the object of the present invention, a process for the synthesis of a pure ionic liquid using in its constitution only the elements carbon, hydrogen, oxygen and nitrogen (CHON), assuming itself as a “greenâ€? alternative in the recovery of metals, thus reducing the environmental impact in the way they are recovered, as well as the guarantee of a more efficient extraction of these metals.
专利号:US-7241399-B2 优先权日:2000-09-08 标题 :Synthesis of nanoparticles 发明人:HAUBOLD STEPHAN; HAASE MARKUS; RIWOTZKI KARSTEN; WELLER HORST; MEYSSAMY HEIKE; IBARRA FERNANDO 权利人:CT ANGEWANDTE NANOTECH CAN 摘要:Methods for the preparation of inorganic nanoparticles capable of fluorescence, wherein the nanoparticles consist of a host material that comprises at least one dopant. The synthesis of the invention in organic solvents allows to gain a considerably higher yield compared to the prior art synthesis in water. All kinds of objects can advantageously be marked and reliably authenticated by using an automated method on the basis of a characteristic emission. Further, the size distribution of the prepared nanoparticles is nartower which renders a subsequent size-selected separation process superfluous.
专利号:US-11059914-B2 优先权日:2016-12-21 标题:Method for the continuous synthesis of a diene elastomer with lithium amide initiator 发明人:DIRE CHARLOTTE; DESSENDIER MARIE-HÉLÈNE 权利人:MICHELIN & CIE 摘要:A process for the continuous synthesis of a diene elastomer is provided. The synthesis is conducted by means of n reactors r1 to rn, considered to be continuous stirred-tank reactors, which are equipped with an internal stirring system. The reactors are arranged in series, n varying from 2 to 15, preferably from 2 to 9. The reactor r1 is fed by an input solution comprising a solvent, one or more monomer(s), an anionic polymerization initiator chosen from lithium amides and a polar agent. The conversion by weight C1 in the first reactor is less than 70%, and the total conversion by weight Cn at the outlet of the reactor rn is greater than or equal to 70%.
专利号:US-4472568-A 优先权日:1981-11-12 标 题:Process for the preparation of polyamines from N-monoaryl-N',N'-dialkyl urea compounds and their use for the synthesis of polyurethanes 发明人:RASSHOFER WERNER; GROEGLER GERHARD 权利人:BAYER AG 摘要:This invention relates to an improved process for the preparation of aromatic polyamines containing urethane and/or biuret and/or urea and/or isocyanurate groups and preferably also ether groups by the hydrolysis of poly-N-monoaryl-N',N'-dialkyl urea compounds (1-aryl-3,3-dialkyl ureas). The ureas are obtained by the reaction of secondary aliphatic, cycloaliphatic or saturated heterocyclic amines with divalent to tetravalent isocyanate compounds containing isocyanate end groups attached to aromatic residues. The ureas correspond to the general formula: wherein R1, R2 denote alkyl or cycloalkyl groups, or together form a ring and A denotes a divalent to tetravalent residue attached to the ureas by aromatic groups. Hydrolysis is carried out in the presence of water and up to two equivalents of a base containing hydroxide ions and/or up to two equivalents of a compound containing tertiary amino groups, optionally in the presence of solvents. The use of the polyamines obtained by this process for the synthesis of polyurethanes is also described.
专利号:US-6987186-B2 优先权日:2003-01-28 标 题 :Synthesis of small particle size quinacridone of beta crystal phase 发明人:COLE DAMIEN THURBER; JEGANATHAN SURULIAPPA GOWDER; HE YINGXIA 权利人:CIBA SC HOLDING AG 摘要:The present invention relates to a process for the synthesis of beta-quinacridone by oxidation in the presence of selected additives that promote the formation of the desired crystal phase and particle size.
专利号:EP-1232226-B1 优先权日:2000-09-08 标题:Synthesis of nanoparticles 发明人:HAUBOLD STEPHAN; HAASE MARKUS; RIWOTZKY CARSTEN; WELLER HORST; MEYSAMMY HEIKE; IBARRA FERNANDO 权利人:NANOSOLUTIONS GMBH 摘要:Production of inorganic nanoparticles that can be fluoresced consisting of a host material containing a dopant comprises using an organic solvent for liquid phase synthesis of the particles.
参考标题:Ruthenium-Catalyzed Deaminative Redistribution Of Primary And Secondary Amines 作者:S. Kostera,B. Wyrzykiewicz,P. Pawluć,B. Marciniec 摘要:Selective Redistribution Of Primary And Secondary Amines Bearing An α-Hydrogen Atom. This New Deaminative Coupling Of Amines Enables The Highly Selective Synthesis Of Secondary Amines From Primary Amines And Of Tertiary Amines From Secondary Amines With The Evolution Of Ammonia. A Preliminary Mechanistic View Of This Novel Reaction Based On Catalytic Experiments Using Nmr Methods Confirms The Synthetic
合成参考文献
摘要:Fusano, A.; Ryu, I., Science of Synthesis: Multicomponent Reactions, (2013) 2, 427. 摘要:Journal of Industrial Hygiene and Toxicology., 31(60), 1949 摘要:S13 | EUCOSMETICS | Combined Inventory of Ingredients Employed in Cosmetic Products (2000) and Revised Inventory (2006) | DOI:10.5281/zenodo.2624118