WO2006045506A1 - Verfahren zur herstellung von polyoxymethylendimethylethern - Google Patents
Verfahren zur herstellung von polyoxymethylendimethylethern Download PDFInfo
- Publication number
- WO2006045506A1 WO2006045506A1 PCT/EP2005/011234 EP2005011234W WO2006045506A1 WO 2006045506 A1 WO2006045506 A1 WO 2006045506A1 EP 2005011234 W EP2005011234 W EP 2005011234W WO 2006045506 A1 WO2006045506 A1 WO 2006045506A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- methylal
- reaction
- mixture
- trioxane
- fraction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/12—Polymerisation of acetaldehyde or cyclic oligomers thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/48—Preparation of compounds having groups
- C07C41/50—Preparation of compounds having groups by reactions producing groups
- C07C41/56—Preparation of compounds having groups by reactions producing groups by condensation of aldehydes, paraformaldehyde, or ketones
Definitions
- the invention relates to a process for the preparation of Polyoxymethylendimethyl ⁇ ethers.
- Polyoxymethylene dimethyl ether represents a homologous series of the general formula
- n is a number> 1.
- the polyoxymethylene dimethyl ethers are acetals. They are prepared, like methylal, by reaction of methanol with aqueous formaldehyde in the presence of an acidic catalyst. Like other acetals, they are stable under neutral or alkaline conditions, but are already attacked by dilute acids. By hydrolysis, they are converted in a first step to hemiacetals and methanol. In a second step, the hemiacetals are hydrolyzed to formaldehyde and methanol.
- Polyoxymethylendimethylether be prepared by heating polyoxymethylene glycol or paraformaldehyde with methanol in the presence of traces of sulfuric acid or hydrochloric acid at temperatures of 150 to 180 0 C and reaction times of 12 to 15 hours. This leads to decomposition reactions with the formation of carbon dioxide and the formation of dimethyl ether.
- polyoxymethylene dimethyl ethers have become important as diesel fuel additives.
- oxygen-containing compounds which have only a few or no C-C bonds, such as, for example, methanol, are added to this.
- such compounds are often insoluble in diesel fuel and reduce the cetane number and / or the flash point of the diesel fuel mixture. No.
- the obtained Polyoxymethylendimethylether are added in amounts of 5 to 30 wt .-% of a diesel fuel.
- No. 6,392,102 describes the preparation of polyoxymethylene dimethyl ethers by reacting a feed stream comprising methanol and formaldehyde, which was obtained by oxidation of dimethyl ether, in the presence of an acidic catalyst and simultaneous separation of the reaction products in a catalytic distillation column. In this case, methylal, methanol, water and Polyoxymethylendimethyl- ether are obtained.
- a disadvantage of the known processes for the preparation of the lower polyoxymethylene dimethyl ether is that predominantly the dimer is obtained.
- a disadvantage of the processes which emanate from formaldehyde and methanol is also that water is formed as the reaction product which hydrolyzes polyoxymethylene dimethyl ether already formed in the presence of the acidic catalysts. In this case, the unstable hemiacetals are formed. The unstable hemiacetals reduce the flash point of the diesel fuel mixture and thus affect its quality. However, a too low flash point of the diesel fuel mixture means that the specifications specified by relevant DIN standards are no longer met. Hal ⁇ bacetale are difficult to separate because of comparable boiling points of polyoxymethylene methyl ethers.
- the dimer formed as the main product has a low boiling point and thus also reduces the flash point, making it less suitable as a diesel fuel additive.
- the object of the invention is to provide an improved process for the preparation of polyoxymethylene dimethyl ethers which does not have the disadvantages of the prior art.
- the object of the invention is in particular to provide a process for the preparation of Polyoxymethylendimethylethern with a particularly high proportion of trimer and tetramer.
- methylal with trioxane In the reaction of methylal with trioxane to the Polyoxymethylendimethylethern no water is formed as a byproduct.
- the reaction is generally carried out at a temperature of 50 to 200 0 C, preferably 90 to 150 0 C, and a pressure of 1 to 20 bar, preferably 2 to 10 bar.
- the molar ratio of methylal: trioxane is generally 0.1 to 10, preferably 0.5 to 5.
- the acidic catalyst may be a homogeneous or heterogeneous acidic catalyst.
- Suitable acidic catalysts are mineral acids such as largely anhydrous sulfuric acid, sulfonic acids such as trifluoromethanesulfonic acid and para-toluenesulfonic acid, heteropolyacids, acidic ion exchange resins, zeolites, aluminosilicates, silica, alumina, titania and zirconia.
- Oxidative catalysts may be doped with sulfate or phosphate groups to increase their acid strength, generally in amounts of from 0.05 to 10% by weight.
- the reaction can be carried out in a stirred tank reactor (CSTR) or a tubular reactor. If a heterogeneous catalyst is used, a fixed bed reactor is preferred. If a fixed catalyst bed is used, the product mixture can then be contacted with an anion exchange resin to obtain a substantially acid-free product mixture.
- CSTR stirred tank reactor
- the amount of water introduced by methylal and trioxane and by the catalyst is in total ⁇ 1% by weight, preferably ⁇ 0.5% by weight, more preferably ⁇ 0.2% by weight and in particular ⁇ 0.1% by weight. -%, Based on the reaction mixture of methylal, trioxane and the catalyst. For this purpose, virtually anhydrous trio xan and methylal used and limited if necessary by the catalystkohl ⁇ introduced amount of water.
- the hemiacetals (monoethers) or polyoxymethylene glycols formed by hydrolysis in the presence of water from already formed polyoxymethylene dimethyl ether have a boiling point comparable to that of the polyoxymethylene dimethyl ethers, thereby making it difficult to separate the polyoxymethylene dimethyl ethers from these by-products.
- a fraction containing the trimer and tetramers is separated from the product mixture of the reaction of methylal with trioxane and unreacted methylal, trioxane and polyoxymethylene dimethyl ether are reacted with n ⁇ 3 is attributed to the acid-catalyzed reaction.
- the polyoxymethylene dimethyl ethers with n> 4 are additionally recycled into the reaction. Due to the recycling, especially trimer and tetramer are obtained.
- the first distillation column for example, at a pressure of 0.5 to 1, 5 bar
- the second distillation column for example, at a pressure of 0.05 to 1 bar
- the third distillation column for example, at a pressure of 0.001 to 0.5 bar operated
- the first and the second fraction more preferably additionally also the fourth fraction are recycled to the reaction.
- a homogeneous catalyst for example a mineral acid or a sulfonic acid, it remains in the fourth fraction and is recycled with it into the acid-catalyzed reaction.
- FIG. 1 shows a process flow diagram according to an embodiment of the method according to the invention.
- the product stream 4 is passed through a bed 5 of anion exchange resin, whereby a substantially acid-free product mixture 6 is obtained.
- This is fed into a first distillation column 7, in which methylal is separated off as the recycle stream 8 via the top.
- a recycle stream 15 of pentameric and higher Polyoxymethylendimethylethern (n> 4) is obtained.
- FIG. 2 shows the process flow diagram according to a further embodiment of the method according to the invention.
- a homogeneous catalyst is used, which is fed into the reactor 3 t as a further feed stream 16.
- a bed of anionic ion exchange resin downstream of the reactor 3 is dispensed with and the product stream 4 of the reaction is fed directly to the first distillation column 7.
- the bottom draw 15 of the third distillation column additionally contains the homogeneous catalyst.
- a small partial stream 17 can be separated from the recirculation stream 15 and discharged from the process, the catalyst loss being compensated by the feed stream 16.
- Example 7 As the comparison of Example 7 with Examples 5 and 6 shows, the recirculation of the dimer into the reaction leads to particularly high yields of trimer and tetramer.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007538306A JP2008517960A (ja) | 2004-10-25 | 2005-10-19 | ポリオキシメチレンジメチルエーテルの製造方法 |
| US11/575,936 US20070260094A1 (en) | 2004-10-25 | 2005-10-19 | Method for Producing Polyoxymethylene Dimethyl Ethers |
| EP05797855A EP1809590A1 (de) | 2004-10-25 | 2005-10-19 | Verfahren zur herstellung von polyoxymethylendimethylethern |
| CA002581502A CA2581502A1 (en) | 2004-10-25 | 2005-10-19 | Method for producing polyoxymethylene dimethyl ethers |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004051814 | 2004-10-25 | ||
| DE102004051814.9 | 2004-10-25 | ||
| DE200410053839 DE102004053839A1 (de) | 2004-11-04 | 2004-11-04 | Verfahren zur Herstellung von Polyoxymethylendimethylethern |
| DE102004053839.5 | 2004-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006045506A1 true WO2006045506A1 (de) | 2006-05-04 |
Family
ID=35962680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2005/011234 Ceased WO2006045506A1 (de) | 2004-10-25 | 2005-10-19 | Verfahren zur herstellung von polyoxymethylendimethylethern |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20070260094A1 (de) |
| EP (1) | EP1809590A1 (de) |
| JP (1) | JP2008517960A (de) |
| CA (1) | CA2581502A1 (de) |
| WO (1) | WO2006045506A1 (de) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7560599B2 (en) | 2007-07-31 | 2009-07-14 | Lanzhou Institute Of Chemical Physics, Chinese Academy Of Sciences | Method for preparing polymethoxymethylal |
| DE102009039437A1 (de) | 2008-09-04 | 2010-05-06 | Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou | Verfahren zum Synthetisieren von Polyoxymethylendimethylethern durch Katalyse mit einer ionischen Flüssigkeit |
| WO2011067229A1 (de) * | 2009-12-01 | 2011-06-09 | Basf Se | Verwendung von trioxan, gewonnen aus einem verfahren zur abtrennung von trioxan aus einem trioxan/formaldehyd/wasser - gemisch, zur herstellung von polyoxymethylendialkylethern |
| US7999140B2 (en) * | 2005-06-15 | 2011-08-16 | Basf Aktiengesellschaft | Method for the production of polyoxymethylene dialkyl ethers from trioxan and dialkylethers |
| DE112011100027T5 (de) | 2010-05-18 | 2013-05-29 | Lanzhou Institute Of Chemical Physics, Chinese Academy Of Sciences | Verfahren zur Synthese von Polyoxymethylendimethylethern,katalysiert durch eine ionische Lösung |
| CN103121926A (zh) * | 2011-11-18 | 2013-05-29 | 中国石油化工股份有限公司 | 聚甲氧基甲缩醛制备方法 |
| CN103121924A (zh) * | 2011-11-18 | 2013-05-29 | 中国石油化工股份有限公司 | 聚甲醛二甲醚的制备方法 |
| CN103664547A (zh) * | 2012-09-05 | 2014-03-26 | 中国石油化工股份有限公司 | 合成聚甲醛二甲醚的方法 |
| US8987521B2 (en) | 2010-05-18 | 2015-03-24 | Lanzhou Institute Of Chemical Physics, Chinese Academy Of Sciences | Method for preparing polyoxymethylene dimethyl ethers by acetalation reaction of formaldehyde with methanol |
| EP2853524A1 (de) | 2013-09-29 | 2015-04-01 | Suzhou OST Advanced Materials Co., Ltd. | Reaktionssystem und Verfahren zur Herstellung von Polymethoxydimethylether |
| US9067188B2 (en) | 2012-10-18 | 2015-06-30 | Lanzhou Institute Of Chemical Physics, Chinese Academy Of Sciences | System and method for continuously producing polyoxymethylene dialkyl ethers |
| US9169186B2 (en) | 2012-10-18 | 2015-10-27 | Lanzhou Institute of Chemicals Physics, Chinese Academy of Sciences | System and method for continuously producing polyoxymethylene dimethyl ethers |
| EP2987781A1 (de) | 2014-08-22 | 2016-02-24 | Karlsruher Institut für Technologie | Verfahren zur herstellung von oxymethylendialkylethern und deren verwendung |
| CN107286003A (zh) * | 2016-04-12 | 2017-10-24 | 中国石油化工股份有限公司 | 聚甲氧基二甲醚分离的工艺方法 |
| CN107286001A (zh) * | 2016-04-12 | 2017-10-24 | 中国石油化工股份有限公司 | 聚甲氧基二甲醚分离方法 |
| DE102016222657A1 (de) | 2016-11-17 | 2018-05-17 | OME Technologies GmbH | Verfahren zur Herstellung von Polyoxymethylendimethylethern aus Formaldehyd und Methanol in wässrigen Lösungen |
| US10377689B2 (en) | 2016-11-17 | 2019-08-13 | OME Technologies GmbH | Process for preparing polyoxymethylene dimethyl ethers from formaldehyde and methanol in aqueous solutions |
| DE102019101927A1 (de) * | 2019-01-25 | 2020-07-30 | Technische Universität Darmstadt | Verfahren zur Herstellung von Oxymethylenethern |
| EP3831897A1 (de) | 2019-12-06 | 2021-06-09 | Hubergroup Deutschland GmbH | Drucktinten- oder lackzusammensetzung mit oxyalkylendialkylether |
| CN113087603A (zh) * | 2020-01-09 | 2021-07-09 | 中国石油化工股份有限公司 | 一种聚甲氧基二甲醚生产系统及生产方法 |
| EP3854773A1 (de) | 2020-01-27 | 2021-07-28 | Friedrich-Alexander-Universität Erlangen-Nürnberg | Verfahren zur erzeugung von oxymethylenether |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10361516A1 (de) * | 2003-12-23 | 2005-07-28 | Basf Ag | Verfahren zur Abtrennung von Trioxan aus einem Trioxan/Formaldehyd/Wasser-Gemisch mittels Druckwechsel-Rektifikation |
| DE102005027702A1 (de) * | 2005-06-15 | 2006-12-21 | Basf Ag | Verfahren zur Herstellung von Polyoxymethylendimethylethern aus Methanol und Formaldehyd |
| DE102005027701A1 (de) * | 2005-06-15 | 2006-12-21 | Basf Ag | Verfahren zur Herstellung von Polyoxymethylendimethylethern aus Methanol und Formaldehyd |
| CN103739458B (zh) * | 2012-10-17 | 2016-02-10 | 中国石油化工股份有限公司 | 聚甲醛二甲基醚的制备方法 |
| DE102013001490A1 (de) * | 2013-01-28 | 2014-08-14 | Man Truck & Bus Ag | Kraftstoff für Selbstzündungsmotoren basierend auf Monooxymethylendimethylether |
| CN103333055B (zh) | 2013-06-09 | 2015-03-18 | 北京东方红升新能源应用技术研究院有限公司 | 一种浆态床催化加氢精制聚甲醛二烷基醚的方法 |
| CN103333059B (zh) | 2013-06-09 | 2014-09-17 | 北京东方红升新能源应用技术研究院有限公司 | 一种固定床催化加氢精制聚甲醛二烷基醚的方法 |
| CN103664550B (zh) | 2013-06-09 | 2015-05-27 | 北京东方红升新能源应用技术研究院有限公司 | 一种合成聚甲氧基甲缩醛的方法 |
| CN104447236B (zh) * | 2013-09-24 | 2016-08-10 | 中国石油化工股份有限公司 | 聚甲醛二甲基醚的提纯方法 |
| CN104447238B (zh) * | 2013-09-24 | 2016-06-08 | 中国石油化工股份有限公司 | 提纯聚甲醛二甲基醚的方法 |
| CN104447237B (zh) * | 2013-09-24 | 2016-08-24 | 中国石油化工股份有限公司 | 以甲醇制聚甲醛二甲醚的工艺方法 |
| CN103709019A (zh) * | 2013-12-09 | 2014-04-09 | 中国科学院兰州化学物理研究所 | 一种酸性离子液体催化合成低碳多醚类化合物的方法 |
| CN104971667B (zh) | 2014-04-01 | 2017-05-24 | 清华大学 | 一种由甲缩醛和多聚甲醛制备聚甲氧基二甲醚的流化床装置及方法 |
| CN104974025B (zh) | 2014-04-11 | 2017-12-08 | 清华大学 | 一种生产聚甲氧基二甲醚的方法 |
| CN104031194A (zh) * | 2014-06-27 | 2014-09-10 | 北京东方红升新能源应用技术研究院有限公司 | 聚甲氧基二甲醚作为环保型溶剂油的新用途 |
| CN105348053A (zh) * | 2015-11-18 | 2016-02-24 | 常州大学 | 一种基于金属盐催化剂催化制备聚甲醛二甲醚的方法 |
| CN107286002B (zh) * | 2016-04-12 | 2020-09-04 | 中国石油化工股份有限公司 | 聚甲氧基二甲醚2的精制方法 |
| US10322397B2 (en) | 2017-09-01 | 2019-06-18 | Gas Technologies Llc | Upgrading of a raw blend into a diesel fuel substitute: poly(dimethoxymethane) |
| CN108484371B (zh) * | 2018-04-27 | 2021-05-07 | 东华工程科技股份有限公司 | 一种合成聚甲氧基二甲醚的反应系统 |
| CN112724000B (zh) * | 2019-10-14 | 2022-12-09 | 中国石油化工股份有限公司 | 一种聚甲氧基二甲醚的生产方法 |
| FR3108909A1 (fr) * | 2020-04-07 | 2021-10-08 | Arkema Fance | Recyclage de polyacétal pour la production de polyoxyméthylènedialkyléthers |
| DE102020118386B4 (de) | 2020-07-13 | 2024-09-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Verfahren zur Herstellung von Polyoxymethylendimethylethern |
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- 2005-10-19 JP JP2007538306A patent/JP2008517960A/ja active Pending
- 2005-10-19 US US11/575,936 patent/US20070260094A1/en not_active Abandoned
- 2005-10-19 EP EP05797855A patent/EP1809590A1/de not_active Withdrawn
- 2005-10-19 CA CA002581502A patent/CA2581502A1/en not_active Abandoned
- 2005-10-19 WO PCT/EP2005/011234 patent/WO2006045506A1/de not_active Ceased
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| WO2000029365A2 (en) * | 1998-11-12 | 2000-05-25 | Bp Amoco Corporation | Preparation of polyoxymethylene dimethyl ethers by acid-activated catalytic conversion of methanol with formaldehyde |
| EP1070755A1 (de) * | 1999-07-22 | 2001-01-24 | SNAMPROGETTI S.p.A. | Aus Dieselgasölen und sauerstoffhaltigen Verbindungen bestehendes flüssiges Gemisch |
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7999140B2 (en) * | 2005-06-15 | 2011-08-16 | Basf Aktiengesellschaft | Method for the production of polyoxymethylene dialkyl ethers from trioxan and dialkylethers |
| US7560599B2 (en) | 2007-07-31 | 2009-07-14 | Lanzhou Institute Of Chemical Physics, Chinese Academy Of Sciences | Method for preparing polymethoxymethylal |
| DE102009039437A1 (de) | 2008-09-04 | 2010-05-06 | Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou | Verfahren zum Synthetisieren von Polyoxymethylendimethylethern durch Katalyse mit einer ionischen Flüssigkeit |
| US8344183B2 (en) | 2008-09-04 | 2013-01-01 | Lanzhou Institute Of Chemical Physics, Chinese Academy Of Sciences | Method for synthesizing polyoxymethylene dimethyl ethers by ionic liquid catalysis |
| WO2011067229A1 (de) * | 2009-12-01 | 2011-06-09 | Basf Se | Verwendung von trioxan, gewonnen aus einem verfahren zur abtrennung von trioxan aus einem trioxan/formaldehyd/wasser - gemisch, zur herstellung von polyoxymethylendialkylethern |
| US8816131B2 (en) | 2010-05-18 | 2014-08-26 | Lanzhou Institute Of Chemical Physics, Chinese Academy Of Sciences | Method for synthesizing polyoxymethylene dimethyl ethers catalyzed by an ionic liquid |
| DE112011100027T5 (de) | 2010-05-18 | 2013-05-29 | Lanzhou Institute Of Chemical Physics, Chinese Academy Of Sciences | Verfahren zur Synthese von Polyoxymethylendimethylethern,katalysiert durch eine ionische Lösung |
| US8987521B2 (en) | 2010-05-18 | 2015-03-24 | Lanzhou Institute Of Chemical Physics, Chinese Academy Of Sciences | Method for preparing polyoxymethylene dimethyl ethers by acetalation reaction of formaldehyde with methanol |
| CN103121926A (zh) * | 2011-11-18 | 2013-05-29 | 中国石油化工股份有限公司 | 聚甲氧基甲缩醛制备方法 |
| CN103121924A (zh) * | 2011-11-18 | 2013-05-29 | 中国石油化工股份有限公司 | 聚甲醛二甲醚的制备方法 |
| CN103121924B (zh) * | 2011-11-18 | 2014-12-10 | 中国石油化工股份有限公司 | 聚甲醛二甲醚的制备方法 |
| CN103664547A (zh) * | 2012-09-05 | 2014-03-26 | 中国石油化工股份有限公司 | 合成聚甲醛二甲醚的方法 |
| US9169186B2 (en) | 2012-10-18 | 2015-10-27 | Lanzhou Institute of Chemicals Physics, Chinese Academy of Sciences | System and method for continuously producing polyoxymethylene dimethyl ethers |
| US9067188B2 (en) | 2012-10-18 | 2015-06-30 | Lanzhou Institute Of Chemical Physics, Chinese Academy Of Sciences | System and method for continuously producing polyoxymethylene dialkyl ethers |
| US9168503B2 (en) | 2013-09-29 | 2015-10-27 | Suzhou Ost Advanced Materials Co., Ltd. | Reaction system and process for preparing polymethoxy dimethyl ether |
| EP2853524A1 (de) | 2013-09-29 | 2015-04-01 | Suzhou OST Advanced Materials Co., Ltd. | Reaktionssystem und Verfahren zur Herstellung von Polymethoxydimethylether |
| EP2987781A1 (de) | 2014-08-22 | 2016-02-24 | Karlsruher Institut für Technologie | Verfahren zur herstellung von oxymethylendialkylethern und deren verwendung |
| DE102014112021A1 (de) | 2014-08-22 | 2016-02-25 | Karlsruher Institut für Technologie | Verfahren zur Herstellung von Oxymethylendialkylethern und deren Verwendung |
| CN107286001B (zh) * | 2016-04-12 | 2020-10-30 | 中国石油化工股份有限公司 | 聚甲氧基二甲醚分离方法 |
| CN107286003A (zh) * | 2016-04-12 | 2017-10-24 | 中国石油化工股份有限公司 | 聚甲氧基二甲醚分离的工艺方法 |
| CN107286001A (zh) * | 2016-04-12 | 2017-10-24 | 中国石油化工股份有限公司 | 聚甲氧基二甲醚分离方法 |
| CN107286003B (zh) * | 2016-04-12 | 2020-06-09 | 中国石油化工股份有限公司 | 聚甲氧基二甲醚分离的工艺方法 |
| DE102016222657A1 (de) | 2016-11-17 | 2018-05-17 | OME Technologies GmbH | Verfahren zur Herstellung von Polyoxymethylendimethylethern aus Formaldehyd und Methanol in wässrigen Lösungen |
| US10377689B2 (en) | 2016-11-17 | 2019-08-13 | OME Technologies GmbH | Process for preparing polyoxymethylene dimethyl ethers from formaldehyde and methanol in aqueous solutions |
| DE102019101927A1 (de) * | 2019-01-25 | 2020-07-30 | Technische Universität Darmstadt | Verfahren zur Herstellung von Oxymethylenethern |
| EP3831897A1 (de) | 2019-12-06 | 2021-06-09 | Hubergroup Deutschland GmbH | Drucktinten- oder lackzusammensetzung mit oxyalkylendialkylether |
| WO2021110973A1 (en) | 2019-12-06 | 2021-06-10 | Hubergroup Deutschland Gmbh | Printing ink or varnish composition containing oxymethylene ether |
| CN113087603A (zh) * | 2020-01-09 | 2021-07-09 | 中国石油化工股份有限公司 | 一种聚甲氧基二甲醚生产系统及生产方法 |
| CN113087603B (zh) * | 2020-01-09 | 2022-12-09 | 中国石油化工股份有限公司 | 一种聚甲氧基二甲醚生产系统及生产方法 |
| EP3854773A1 (de) | 2020-01-27 | 2021-07-28 | Friedrich-Alexander-Universität Erlangen-Nürnberg | Verfahren zur erzeugung von oxymethylenether |
| WO2021151871A1 (de) | 2020-01-27 | 2021-08-05 | Friedrich-Alexander-Universität Erlangen-Nürnberg | Verfahren zur erzeugung von oxymethylenether |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2581502A1 (en) | 2006-05-04 |
| EP1809590A1 (de) | 2007-07-25 |
| JP2008517960A (ja) | 2008-05-29 |
| US20070260094A1 (en) | 2007-11-08 |
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