-
公开(公告)号：US20230098199A1
公开(公告)日：2023-03-30
申请号：US17801530
申请日：2020-09-29
摘要： Provided is a method of generating hydrogen efficiently using a renewable resource as a raw material.
A method of producing hydrogen according to the present disclosure is a method in which hydrogen is generated from a saccharide in the presence of a solvent and the following catalyst: catalyst which contains at least one metal element selected from the metal elements in Groups 8, 9, and 10. The catalyst is preferably a complex or salt of the metal element, and particularly preferably a complex including the at least one metal element selected from the metal elements in Groups 8, 9, and 10 and at least one ligand selected from pentamethylcyclopentadienyl, cyclopentadienyl, p-cymene, and 1,5-cyclooctadiene.
As the solvent, it is preferable to use at least one selected from an organic acid and an ionic liquid.
The saccharide may be a lignin-saccharide complex, and is preferably cellulose.-
公开(公告)号：US20240174862A1
公开(公告)日：2024-05-30
申请号：US18283830
申请日：2021-03-26
摘要： Disclosed is a eutectic mixture containing a first component and a second component as main components. The first component is a quaternary ammonium salt, and the second component is an aminocarboxylic acid and/or a derivative thereof, the aminocarboxylic acid having a —COOH group and an —NH— group in the same molecule. The eutectic mixture has a melting point, Tm, which is lower than the melting point of the first component, T1, and which is lower than the melting point of the second component, T2. The eutectic mixture is in a homogeneous liquid state at a temperature higher than the melting point, Tm. Disclosed is a liquid composition containing a third component dissolving in the eutectic mixture. The third component contains one or two or more selected from cellulose, hemicellulose, and lignin.
-
公开(公告)号：US20230129765A1
公开(公告)日：2023-04-27
申请号：US17800274
申请日：2021-02-17
申请人： DAICEL CORPORATION
发明人： Masanori SAKANE , Kenji KITAYAMA , Bing LIU
摘要： It is an object of the present disclosure to provide a method for efficiently and economically producing a polythioether compound by performing a ring-opening polymerization of an alicyclic episulfide compound.
The present disclosure provides a method for producing a polythioether compound, the method including performing a ring-opening polymerization of an alicyclic episulfide compound in the presence of a base. The base is preferably an amine compound. Further, the base is preferably a strong base.-
公开(公告)号：US20160074856A1
公开(公告)日：2016-03-17
申请号：US14786251
申请日：2014-04-17
申请人： DAICEL CORPORATION
IPC分类号： B01J38/64 , C07D303/02 , B01J23/30
CPC分类号： B01J38/64 , B01J23/30 , C07D301/12 , C07D303/02 , C07D303/04 , C07D303/44
摘要： Provided is a method for easily and efficiently recovering an oxoacid catalyst without deterioration in reaction product yield and catalytic activity, where the oxoacid catalyst has been used in a reaction for oxidizing an organic compound with hydrogen peroxide, also provided is a method for producing an oxide in which an organic compound is oxidized with hydrogen peroxide using the oxoacid catalyst recovered by the method, to yield the corresponding oxide.A method according to the present invention recovers an oxoacid catalyst used in a reaction for oxidizing an organic compound with hydrogen peroxide in an aqueous/organic solvent two-phase system. The method includes Step 1 in which the pH in the reaction system is adjusted to 5.0 or higher so as to transfer the oxoacid catalyst to the aqueous phase, and the organic phase is removed.
摘要翻译： 本发明提供了一种方法，用于容易且有效地回收含氧酸催化剂，而不会降低反应产物的产率和催化活性，其中含氧酸催化剂已用于用过氧化氢氧化有机化合物的反应中，还提供了一种生产氧化物的方法 使用通过该方法回收的含氧酸催化剂，用过氧化氢氧化有机化合物，得到相应的氧化物。 根据本发明的方法回收用于在水/有机溶剂两相体系中用过氧化氢氧化有机化合物的反应中使用的含氧酸催化剂。 该方法包括步骤1，其中将反应体系中的pH调节至5.0或更高以便将含氧酸催化剂转移到水相，并除去有机相。
-
-
-
搜索结果
4 条记录 (耗时 0.015 秒)
