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公开(公告)号：US20220127218A1
公开(公告)日：2022-04-28
申请号：US17428127
申请日：2019-03-05
IPC分类号： C07C67/317 , B01J23/652
摘要： An object of the present invention is to provide a method for selectively producing a hydroxycarboxylic acid ester, the method including reducing a dicarboxylic acid monoester by means of a heterogeneous reaction. According to a method for producing a hydroxycarboxylic acid ester in an embodiment of the present invention, a hydroxycarboxylic acid ester represented by Formula (2) is produced by reducing a substrate dicarboxylic acid monoester represented by Formula (1) in the presence of a catalyst.
The catalyst comprises: metal species including M1 and M2; and a support supporting the metal species, and wherein M1 is rhodium, platinum, ruthenium, iridium or palladium; M2 is tin, vanadium, molybdenum, tungsten or rhenium; and the support is hydroxyapatite, fluorapatite, or hydrotalcite.-
公开(公告)号：US20220024842A1
公开(公告)日：2022-01-27
申请号：US17428097
申请日：2019-09-17
IPC分类号： C07C29/149 , B01J23/652 , B01J21/06
摘要： The present invention provides a method for selectively producing an alcohol by efficiently hydrogenating a lactone. The present invention is a method for producing an alcohol, the method including hydrogenating a substrate lactone represented by Formula (1), in the presence of a catalyst described below, to produce an alcohol that is represented by Formula (2).
In the formulae, R represents a divalent hydrocarbon group which may have a hydroxyl group.
The catalyst comprises: metal species including M1 and M2; and a support supporting the metal species, and wherein M1 is rhodium, platinum, ruthenium, iridium, or palladium; M2 is tin, vanadium, molybdenum, tungsten, or rhenium; and the support is hydroxyapatite, fluorapatite, hydrotalcite, or ZrO2.-
公开(公告)号：US20190276309A1
公开(公告)日：2019-09-12
申请号：US16345199
申请日：2017-09-08
IPC分类号： C01B3/32 , B01J23/52 , B01J27/18 , H01M8/0612 , C07F7/08
摘要： Provided is a method for generating hydrogen at a desired rate, using a hydrogen storage material that can be stored and transported safely and inexpensively. The method according to the present invention for producing a silanol compound and hydrogen includes subjecting a hydrosilane compound and water to a reaction with each other in the presence of a solid catalyst to give a silanol compound and hydrogen. The solid catalyst includes hydroxyapatite and gold particles supported on the hydroxyapatite, where the gold particles have an average particle size of 2.5 nm or less. The reaction in the method according to the present invention for producing a silanol compound and hydrogen is preferably performed in an air atmosphere. The reaction in the method according to the present invention for producing a silanol compound and hydrogen can be performed with application of substantially no heat and no activated energy rays.
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4.发明申请METHOD FOR PRODUCING 3-HYDROXYTETRAHYDROFURAN AND METHOD FOR PRODUCING 1, 3-BUTANE DIOL 审中-公开生产3-羟基喹唑啉的方法及生产1,3-丁二醇的方法公开(公告)号：US20150298101A1
公开(公告)日：2015-10-22
申请号：US14436357
申请日：2013-10-30
申请人： DAICEL CORPORATION
IPC分类号： B01J23/888 , C07C29/132 , B01J35/00 , B01J23/652 , B01J23/44 , B01J23/656 , C07D307/20 , B01J23/30
CPC分类号： B01J23/888 , B01J21/18 , B01J23/30 , B01J23/44 , B01J23/6527 , B01J23/6567 , B01J29/48 , B01J35/0006 , B01J37/0201 , B01J37/04 , C07C29/132 , C07D307/20 , Y02P20/588 , C07C31/207
摘要： An object of the present invention is to provide a method for producing 3-hydroxytetrahydrofuran that can be used as a raw material for 1,3-butane diol, using as a raw material a compound that can be derived from biomass.The present invention relates to a method for producing 3-hydroxytetrahydrofuran including a step of reacting 1,4-anhydroerythritol and hydrogen to produce 3-hydroxytetrahydrofuran. In the production method, the step of reacting 1,4-anhydroerythritol and hydrogen is preferably allowed to proceed in the presence of a catalyst comprising a carrier and at least one oxide selected from the group consisting of an oxide of a Group 6 element and an oxide of a Group 7 element, the oxide being supported on the carrier.
摘要翻译： 本发明的目的是提供一种可用作1,3-丁二醇的原料的3-羟基四氢呋喃的制备方法，该方法使用可以衍生自生物质的化合物作为原料。 本发明涉及一种生产3-羟基四氢呋喃的方法，包括使1,4-脱水thr thr醇与氢反应生成3-羟基四氢呋喃的步骤。 在制造方法中，优选使1,4-脱水赤藓糖醇和氢气反应的步骤在含有载体和至少一种选自第6族元素的氧化物和 第7族元素的氧化物，氧化物负载在载体上。
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公开(公告)号：US20230087989A1
公开(公告)日：2023-03-23
申请号：US17788823
申请日：2020-12-23
申请人： DAICEL CORPORATION
摘要： A high-purity 1,3-butylene glycol product that is colorless and odorless (or almost colorless and odorless), unlikely to cause coloration and odor over time, and/or unlikely to cause an acid concentration increase over time when the product is left in a state containing water is provided. A 1,3-butylene glycol product containing 1,3-butylene glycol, wherein, after the 1,3-butylene glycol product has been kept at 180° C. for 3 hours in air atmosphere, at least one of contents of compounds represented by the following Formula (A) or (B) is less than 8 ppm. In the following formula, R1 to R4 are the same as or different from each other, and each of R1 to R4 is a hydrogen atom, an alkyl group which has from 1 to 4 carbon atoms and may be substituted with a hydroxy group, or an alkenyl group which has from 2 to 4 carbon atoms and may be substituted with a hydroxy group.
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公开(公告)号：US20220362118A1
公开(公告)日：2022-11-17
申请号：US17640514
申请日：2020-09-03
申请人： DAICEL CORPORATION
发明人： Yasuteru KAJIKAWA , Yuki TESHIMA , Yuuichirou HIRAI , Keisuke ONO , Midori UMEHARA , Tetsuro NAKANISHI
摘要： Provided is a high-purity 1,3-butylene glycol product that is odorless and is unlikely to cause acid concentration increase over time in a state containing water. A 1,3-butylene glycol product, having, according to a gas chromatographic analysis performed under predetermined conditions, a peak area ratio of 100 ppm or lower appearing in a relative retention time ranging from 1.35 to 1.45, provided that the relative retention time for a peak of 1,3-butylene glycol is 1.0.
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公开(公告)号：US20220323322A1
公开(公告)日：2022-10-13
申请号：US17640701
申请日：2020-09-03
申请人： DAICEL CORPORATION
发明人： Yasuteru KAJIKAWA , Tetsuro NAKANISHI , Yuuichirou HIRAI , Keisuke ONO , Midori UMEHARA , Yuki TESHIMA
摘要： Provided is a high-purity 1,3-butylene glycol product that is colorless and odorless, and furthermore, unlikely to be colored over time. A 1,3-butylene glycol product, having, according to a gas chromatographic analysis performed under predetermined conditions, a peak area ratio of 1000 ppm or lower appearing in a relative retention time ranging from 2.3 to 2.4, provided that the relative retention time for a peak of 1,3-butylene glycol is 1.0.
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公开(公告)号：US20220296481A1
公开(公告)日：2022-09-22
申请号：US17640387
申请日：2020-09-03
申请人： DAICEL CORPORATION
发明人： Yasuteru KAJIKAWA , Tetsuro NAKANISHI , Yuki TESHIMA , Yuuichirou HIRAI , Keisuke ONO , Midori UMEHARA
摘要： Provided is a high-purity 1,3-butylene glycol product that is colorless and odorless, unlikely to be colored over time, and furthermore, unlikely to cause acid concentration increase over time in a state containing water. A 1,3-butylene glycol product, having, according to a gas chromatographic analysis performed under predetermined conditions, a peak ratio of 2000 ppm or lower appearing in a relative retention time ranging from 1.6 to 1.8, provided that the relative retention time for a peak of 1,3-butylene glycol is 1.0.
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公开(公告)号：US20190262805A1
公开(公告)日：2019-08-29
申请号：US16409279
申请日：2019-05-10
申请人： DAICEL CORPORATION
IPC分类号： B01J23/888 , B01J23/30 , C07C29/132 , C07D307/20 , B01J23/656 , B01J23/652 , B01J23/44 , B01J35/00 , B01J29/48
摘要： A hydrogenation reaction catalyst used for a reaction of 1,4-anhydroerythritol and hydrogen to produce 3-hydroxytetrahydrofuran includes a carrier, at least one oxide selected from the group consisting of an oxide of a Group 6 element and an oxide of a Group 7 element, the oxide being supported on the carrier, and a metal other than a Group 6 element and a Group 7 element, the other metal being supported on the carrier. The amount of the oxide supported on the carrier in terms of a metal atom forming the oxide is 0.01 to 10% by weight based on the total amount of the oxide and the carrier being 100% by weight. The molar ratio in terms of metal of the other metal to the Group 6 element and Group 7 element forming the oxide [other metal/Group 6 element and Group 7 element] is 50/1 to 1/4.
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公开(公告)号：US20230098112A1
公开(公告)日：2023-03-30
申请号：US17789067
申请日：2020-12-23
申请人： DAICEL CORPORATION
发明人： Masahiko SHIMIZU , Yasuteru KAJIKAWA , Yuuichirou HIRAI , Keisuke ONO , Midori UMEHARA , Yuki TESHIMA , Tetsuro NAKANISHI
摘要： A high-purity 1,3-butylene glycol product is provided, which is colorless and odorless (or almost colorless and odorless), unlikely to cause coloration and odor over time, and, besides, unlikely to cause an acid concentration increase over time also in a state containing water. A 1,3-butylene glycol product in which at least one of a content of methyl vinyl ketone, a content of acetone, a content of butylaldehyde, a content of acetaldol, a content of a compound represented by Formula (1) below, a content of a compound represented by Formula (2) below, a content of a compound represented by Formula (3) below, and a total content of a compound represented by Formula (4) below and a compound represented by Formula (5) below, is less than 8 ppm.
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