专利号:WO-2020226521-A1 优先权日:2019-05-09 标题:Process for the synthesis of the ionic liquid tetraoctylammonium dioctyl-diglycolamate (il-4), product obtained and its use in metal remediation 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: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 dioctyl-diglycolamate (IL-4) with a high degree of purity and its use in an environmental remediation process of lanthanides and actinides. In addition, it is also an object of the present invention to obtain the ionic liquid tetraoctylammonium dioctyl-diglycolamate (IL-4) with a high degree of purity that allows the separation and sequestration of metals with a high efficiency.
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-6159673-A 优先权日:1996-07-17 标 题:Oxonol compound, light-sensitive material and process for the synthesis of oxonol compound 发明人:NISHIGAKI JUNJI; DEGUCHI YASUAKI 权利人:FUJI PHOTO FILM CO LTD 摘要:An oxonol compound is represented by the following formula (I): in which Z is an atomic group that forms a cyclic amide ring; each of W1 and W2 independently is an atomic group that forms an acidic nucleus ring; and M is a cation. Other oxonol compounds, a light-sensitive material containing an oxonol compound and a process for the synthesis of an oxonol compound are also disclosed.
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:EP-1473330-B1 优先权日:1996-07-17 标题:Process for the synthesis of oxonol compound 发明人:NISHIGAKI JUNJI; DEGUCHI YASUAKI 权利人:FUJI PHOTO FILM CO LTD 摘要:An oxonol compound is represented by the following formula (I): in which each of Z, W<1> and W<2> independently is an atomic group that forms a heterocyclic ring; and M is a cation. A process for the synthesis of an oxonol compound is disclosed.
专利号:US-4918194-A 优先权日:1987-10-29 标 题 :Process for the synthesis of a N,N-dialkyl-hydroxylamine 发明人:ROFFIA PAOLO; TONTI SERGIO; CESANA ALBERTO; MANTEGAZZA MARIA ANGELA; PADOVAN MARIO 权利人:MONTEDIPE SPA 摘要:The invention relates to a process for the synthesis of an N,N-dialkyl-hydroxylamine by reaction of the corresponding dialkylamine with H 2 O 2 , said reaction being carried out in the presence of a catalyst based on titanium-silicalite.