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1. 发明公开

US20230278943A1 METHOD FOR PRODUCING POLYOXYMETHYLENE DIMETHYL ETHERS 审中-公开
公开(公告)号：US20230278943A1
公开(公告)日：2023-09-07
申请号：US18015459
申请日：2021-07-12
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： Franz Mantei , Mohamed Ouda , Achim Schaadt
IPC分类号： C07C41/56 , C07C41/58 , C08G65/00
CPC分类号： C07C41/56 , C07C41/58 , C08G65/00
摘要： The present invention relates to a process for preparing polyoxymethylene dimethyl ethers, comprising the following steps:

reaction of formaldehyde and methylal (OME1) in a reactor R1 to obtain a product mixture,
distillative separation of the product mixture in a distillation unit D1 into a top stream which contains OME1, OME2, formaldehyde, methanol and water, and a bottom stream which contains OME≥3,
mixing of the top stream drawn off from the distillation unit D1 with a methanol-containing stream,
treatment of the mixture in a reactive distillation unit RD2 to form a top stream containing methylal and a water-containing bottom stream,
introduction of the bottom stream drawn off from the distillation unit D1 into a distillation unit D3 and distillative separation of the polyoxymethylene dimethyl ethers.

2. 发明申请

US20230046597A1 METHOD FOR PRODUCING OXYMETHYLENE ETHER 有权
公开(公告)号：US20230046597A1
公开(公告)日：2023-02-16
申请号：US17795489
申请日：2021-01-26
申请人： FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG , OXFA GMBH
发明人： Jakob Albert , Anna BUKOWSKI , Dorothea VOSS
IPC分类号： C07C41/50 , C07C41/56
摘要： The invention relates to a method for production of oxymethylene ether of the general formula CH3O—(CH2O)m—CH3 in a liquid phase process, wherein 1≤m≤10. In a catalytic reaction, molecular oxygen or an oxygen-containing oxidant and methanol, formaldehyde, and/or methyl formate are used as reactants in a solution and are converted by means of a vanadium-oxygen compound or a salt thereof as catalyst in the solution which vanadium-oxygen compound contains vanadium in the oxidation stage +IV or +V. The catalyst reduced during the catalytic reaction is restored to its starting state by oxidation by means of the molecular oxygen or the oxygen-containing oxidant.

3. 发明申请

US20220388935A1 METHOD FOR PRODUCING POLYOXYMETHYLENE DIMETHYL ETHERS 有权
公开(公告)号：US20220388935A1
公开(公告)日：2022-12-08
申请号：US17612386
申请日：2020-05-18
申请人： Fraunhofer-Gesellschaft zur Föderung der angewandten Forschung e.V.
发明人： Mohamed Ouda , Franz M. Mantei , Achim Schaadt
IPC分类号： C07C41/58 , C07C41/56
摘要： The present invention relates to a method for producing polyoxymethylene dimethyl ether by introducing a formaldehyde source and at least one compound of the formula (I) H3C—O—R (I) where R is H or —(CH2O)x—CH3 with x being 0 or 1 as reactants into a reactive distillation unit and reacting them to give polyoxymethylene dimethyl ether, wherein the method produces polyoxymethylene dimethyl ether exclusively in the reactive distillation unit.

4. 发明授权

US11203580B2 Simple oxidative functionalized of alkyl aryl ketones 有权
公开(公告)号：US11203580B2
公开(公告)日：2021-12-21
申请号：US16603534
申请日：2018-04-19
申请人： IGM GROUP B.V.
发明人： Reinhard Sommerlade
IPC分类号： C07D301/02 , C07C41/56 , C07C43/315 , C07D265/30 , C07D303/02 , C07C49/84
摘要： The present invention refers to a process for reacting an alkyl aryl ketone obtaining thereby the corresponding aryl oxirane or α-functionalized alkyl aryl ketal, the aryl oxirane or α-functionalized alkyl aryl ketal obtained by the process as well as the α-functionalized ketone obtained by the process.

5. 发明申请

US20190276579A1 PROCESS FOR PRODUCING DIMETHOXYMETHANE OLIGOMERS 审中-公开
公开(公告)号：US20190276579A1
公开(公告)日：2019-09-12
申请号：US16297254
申请日：2019-03-08
申请人： Lyondell Chemical Technology, L.P.
发明人： James N. Waguespack , David S. Mannel , Larry W. Arndt , Ha H. Nguyen , Barbara Kimmich
IPC分类号： C08G4/00 , C07C41/58 , C07C41/56 , C07C43/04 , B01D3/14 , B01D3/06
摘要： A method of producing dimethoxymethane oligomers (DMMn), the method comprising: reacting a formaldehyde source and dimethoxymethane monomer (DMM1) in the presence of an acidic catalyst to produce a reaction effluent comprising DMMn and unreacted DMM1; and separating, from the reaction effluent, DMM1-2 including unreacted DMM1 and DMMn having a chain length n equal to 2 (DMM2), dimethoxymethane oligomers having a chain length n in the range of from 2-5 (DMM2-5), dimethoxymethane oligomers having a chain length n of ≥5 (DMM5+), or a combination thereof, wherein the separating comprises distillation in the presence of at least one alcohol, a distillate fuel, or both.

6. 发明申请

US20190071378A1 UPGRADING OF A RAW BLEND INTO A DIESEL FUEL SUBSTITUTE: POLY(DIMETHOXYMETHANE) 审中-公开
公开(公告)号：US20190071378A1
公开(公告)日：2019-03-07
申请号：US15693991
申请日：2017-09-01
申请人： GAS TECHNOLOGIES LLC
发明人： Evan Visser , Walter Breidenstein
IPC分类号： C07C41/56 , C10L1/02 , C07C41/58 , B01D3/00 , B01D3/14
摘要： A method for forming poly(dimethoxymethane) includes a step of separating a formaldehyde-containing blend into a first bottom stream and a first top stream. The first formaldehyde-containing blend includes methanol, formaldehyde, and water while the first bottom stream includes water. The first top stream includes dimethoxymethane that is produced from the reaction between methanol and formaldehyde. The first top stream is separated into a second bottom stream and a second top stream. The second bottom stream includes poly(dimethoxymethane) while the second top stream includes dimethoxymethane, methanol, and ethanol. The second top stream is separated into a third bottom stream and a third top stream. Third bottom stream includes methanol and ethanol while the third top stream includes dimethoxymethane. The third top steam can be recycled to form additional poly(dimethoxymethane). A system that implements the method is also provided.

7. 发明授权

US10106478B2 Process for producing a multifunctional product and the device for applying said process 有权
公开(公告)号：US10106478B2
公开(公告)日：2018-10-23
申请号：US15487510
申请日：2017-04-14
申请人： Blueplasma Power, S.L.
发明人： Mario Araya Brenes
IPC分类号： B01D3/00 , B01J8/00 , C07C45/38 , C07C41/01 , B01J8/06 , C07C29/154 , C07C45/37 , C07C41/09 , C07C41/56 , C10L1/02 , C10L1/185 , C10L1/198 , C10L10/06
摘要： A process by which the raw material, a gas comprising mainly hydrogen, carbon monoxide and carbon dioxide, is introduced into a first reactor together with a catalyst, in which one or more reactions take place that produce methanol or dimethyl ether or both, which are then introduced into a second reactor adding oxygen and a catalyst and producing formaldehyde and a minority of dimethyl ether, and where there may be an excess of water, such water being extracted from the process and the remaining products being introduced into the third reactor with, optionally, an additive, and such raw material is exposed to catalysts and under an atmosphere at medium temperature and pressure, in order to produce three or four groups of chemical reactions that, after extracting most of the water that is generated as a residue during the process, produces as a result a liquid multifunctional product that can be used as a solvent, a foaming agent or an oxygenated fuel; said product, normally a fluid, comprises polyoxymethylene dimethyl ethers with molecular formula CH3O(CH2O)nCH3 wherein n has a value between 1 and 7.

8. 发明授权

US09561989B2 Process of asymmetric hydrogenation of ketals and acetals 有权
标题翻译：缩酮和缩醛的不对称氢化方法
公开(公告)号：US09561989B2
公开(公告)日：2017-02-07
申请号：US14652562
申请日：2013-12-18
申请人： DSM IP ASSETS B.V.
发明人： Werner Bonrath , Thomas Netscher , Jonathan Alan Medlock , Gerardus Karel Maria Verzijl , Andreas Hendrikus Maria De Vries
IPC分类号： C07D507/02 , C07B35/02 , C07D317/12 , C07C41/48 , C07B53/00 , C07D311/72 , C07D319/06 , B01J31/18 , C07C41/56 , C07C41/58
CPC分类号： C07B35/02 , B01J31/189 , B01J2231/34 , B01J2531/827 , C07B53/00 , C07B2200/07 , C07B2200/09 , C07C41/48 , C07C41/56 , C07C41/58 , C07D311/72 , C07D317/12 , C07D319/06 , C07C43/303 , C07C43/313
摘要： The present invention relates to a process of the asymmetric hydrogenation of a ketal of an unsaturated ketone or an acetal of an unsaturated aldehyde by molecular hydrogen in the presence of at least one chiral iridium complex. This process yields chiral compounds in a very efficient way and is very advantageous in that the amount of iridium complex can be remarkably reduced.
摘要翻译：本发明涉及在至少一种手性铱络合物的存在下，通过分子氢在不饱和酮或不饱和醛的缩醛中缩酮的不对称氢化的方法。该方法以非常有效的方式产生手性化合物，并且非常有利的是铱络合物的量可以显着降低。

9. 发明授权

US09057034B2 Method for synthesizing polyoxymethylene dimethyl ethers 有权
标题翻译：聚甲醛二甲醚的合成方法
公开(公告)号：US09057034B2
公开(公告)日：2015-06-16
申请号：US14257722
申请日：2014-04-21
申请人： Dongfang Hongsheng New Energy Application Technology Research Institute Co., Ltd (CN)
发明人： Zhengpeng Hong , Hongyan Shang , Chengyue Li
IPC分类号： C10L1/02 , C08G2/12 , C07C41/56
CPC分类号： C10L1/02 , C07C41/56 , C08G2/12 , C07C43/30
摘要： The present invention relates to the field of chemical engineering and technology, in particular relates to the sub-field of synthesis of high quality alternative liquid fuel for engines from non-petroleum based feedstock, more particularly relates to a method for adjusting, controlling and optimizing the synthetic process of polyoxymethylene dimethyl ethers by utilizing chemical thermodynamic principle. The process of the present invention is achieved by conditions wherein the initial temperature of reaction is controlled at 100-120° C., then the temperature is reduced to 50-70° C. by successive stepwise cooling or programmed cooling, the reaction pressure is controlled at 0.1-4.0 MPa, and the molar ratio of paraformaldehyde or trioxane, metered in formaldehyde units, to methylal in the feedstock is 1.5:1-8:1. In the process, higher overall yield of the target product can be achieved within the same reaction time, and selectivity of products with higher polymerization degree of methoxy groups can be increased.
摘要翻译：本发明涉及化学工程和技术领域，特别涉及从非石油基原料合成用于发动机的高质量替代液体燃料的子领域，更具体地涉及一种用于调节，控制和优化的方法聚甲醛二甲醚的合成过程采用化学热力学原理。本发明的方法是通过将反应的初始温度控制在100-120℃，然后通过连续逐步冷却或程序冷却将温度降低至50-70℃的条件来实现的，反应压力为控制在0.1-4.0MPa，并且以甲醛为单位的多聚甲醛或三恶烷与原料中的甲缩醛的摩尔比为1.5：1-8：1。在该过程中，可以在相同的反应时间内实现更高的目标产物的总产率，并且可以提高具有较高聚合度的甲氧基的产物的选择性。

10. 发明授权

US08870982B2 Method for converting biomass into products containing acetal groups and use thereof as biofuels 有权
标题翻译：将生物质转化为含有缩醛基团的产品的方法，并将其用作生物燃料
公开(公告)号：US08870982B2
公开(公告)日：2014-10-28
申请号：US12678512
申请日：2008-09-18
申请人： Bruno Delfort , Remy Marchal
发明人： Bruno Delfort , Remy Marchal
IPC分类号： C10L1/185 , C07C43/303 , C10L1/02 , C07C41/56
CPC分类号： C07C41/56 , C10G2300/1014 , C10L1/026 , Y02E50/13 , Y02P30/20 , C07C43/303
摘要： The invention describes a method of converting biomass to products that can be incorporated into the diesel fuel pool, comprising a first stage of fermentation of renewable raw materials of vegetable origin at the end of which a least one alcohol and at least one compound containing a carbonyl group are obtained, and a second stage corresponding to an acetalization reaction involving said alcohol and said compound containing a carbonyl group.
摘要翻译：本发明描述了将生物质转化成可并入柴油燃料池的产品的方法，其包括第一阶段的发酵可再生植物来源的原料，其中至少一种醇和至少一种含有羰基的化合物并且涉及涉及所述醇和所述含有羰基的化合物的缩醛化反应的第二阶段。

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