CN108164500B - 用于在非均相反应系统中生产环状缩醛的方法 - Google Patents
用于在非均相反应系统中生产环状缩醛的方法 Download PDFInfo
- Publication number
- CN108164500B CN108164500B CN201711457383.5A CN201711457383A CN108164500B CN 108164500 B CN108164500 B CN 108164500B CN 201711457383 A CN201711457383 A CN 201711457383A CN 108164500 B CN108164500 B CN 108164500B
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- Prior art keywords
- formaldehyde
- aprotic compound
- formaldehyde source
- cyclic acetal
- aprotic
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D323/00—Heterocyclic compounds containing more than two oxygen atoms as the only ring hetero atoms
- C07D323/04—Six-membered rings
- C07D323/06—Trioxane
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C47/00—Compounds having —CHO groups
- C07C47/02—Saturated compounds having —CHO groups bound to acyclic carbon atoms or to hydrogen
- C07C47/04—Formaldehyde
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D323/00—Heterocyclic compounds containing more than two oxygen atoms as the only ring hetero atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D323/00—Heterocyclic compounds containing more than two oxygen atoms as the only ring hetero atoms
- C07D323/04—Six-membered rings
-
- 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
- C08G2/10—Polymerisation of cyclic oligomers of formaldehyde
-
- 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
- C08G2/30—Chemical modification by after-treatment
- C08G2/36—Chemical modification by after-treatment by depolymerisation
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
- C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
- C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
- C08G65/16—Cyclic ethers having four or more ring atoms
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/30—Post-polymerisation treatment, e.g. recovery, purification, drying
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/16—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
- C08J11/28—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic compounds containing nitrogen, sulfur or phosphorus
-
- 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
- C08G2650/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G2650/62—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule characterised by the nature of monomer used
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2359/00—Characterised by the use of polyacetals containing polyoxymethylene sequences only
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2359/00—Characterised by the use of polyacetals containing polyoxymethylene sequences only
- C08J2359/02—Copolyoxymethylenes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711457383.5A CN108164500B (zh) | 2011-11-24 | 2012-11-23 | 用于在非均相反应系统中生产环状缩醛的方法 |
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11190586.5 | 2011-11-24 | ||
| EP11190586 | 2011-11-24 | ||
| EP11190574.1 | 2011-11-24 | ||
| EP11190567.5 | 2011-11-24 | ||
| EP11190567 | 2011-11-24 | ||
| EP11190574 | 2011-11-24 | ||
| PCT/EP2012/073543 WO2013076290A1 (en) | 2011-11-24 | 2012-11-23 | Process for producing a cyclic acetal in a heterogeneous reaction system |
| CN201711457383.5A CN108164500B (zh) | 2011-11-24 | 2012-11-23 | 用于在非均相反应系统中生产环状缩醛的方法 |
| CN201280057570.3A CN104024240A (zh) | 2011-11-24 | 2012-11-23 | 用于在非均相反应系统中生产环状缩醛的方法 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280057570.3A Division CN104024240A (zh) | 2011-11-24 | 2012-11-23 | 用于在非均相反应系统中生产环状缩醛的方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108164500A CN108164500A (zh) | 2018-06-15 |
| CN108164500B true CN108164500B (zh) | 2024-09-03 |
Family
ID=47216340
Family Applications (7)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711457383.5A Active CN108164500B (zh) | 2011-11-24 | 2012-11-23 | 用于在非均相反应系统中生产环状缩醛的方法 |
| CN201280057948.XA Expired - Fee Related CN103958493B (zh) | 2011-11-24 | 2012-11-23 | 用于由含水甲醛来源生产三氧杂环己烷的方法 |
| CN201710109742.1A Active CN106866615B (zh) | 2011-11-24 | 2012-11-23 | 用于生产三氧杂环己烷的方法 |
| CN201280057571.8A Pending CN103958492A (zh) | 2011-11-24 | 2012-11-23 | 用于生产三氧杂环己烷的方法 |
| CN201280057570.3A Pending CN104024240A (zh) | 2011-11-24 | 2012-11-23 | 用于在非均相反应系统中生产环状缩醛的方法 |
| CN201280057582.6A Pending CN104105695A (zh) | 2011-11-24 | 2012-11-23 | 用于在聚合工艺过程中回收甲醛来源的方法 |
| CN201280057572.2A Expired - Fee Related CN103946219B (zh) | 2011-11-24 | 2012-11-23 | 用于生产环状缩醛的方法 |
Family Applications After (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280057948.XA Expired - Fee Related CN103958493B (zh) | 2011-11-24 | 2012-11-23 | 用于由含水甲醛来源生产三氧杂环己烷的方法 |
| CN201710109742.1A Active CN106866615B (zh) | 2011-11-24 | 2012-11-23 | 用于生产三氧杂环己烷的方法 |
| CN201280057571.8A Pending CN103958492A (zh) | 2011-11-24 | 2012-11-23 | 用于生产三氧杂环己烷的方法 |
| CN201280057570.3A Pending CN104024240A (zh) | 2011-11-24 | 2012-11-23 | 用于在非均相反应系统中生产环状缩醛的方法 |
| CN201280057582.6A Pending CN104105695A (zh) | 2011-11-24 | 2012-11-23 | 用于在聚合工艺过程中回收甲醛来源的方法 |
| CN201280057572.2A Expired - Fee Related CN103946219B (zh) | 2011-11-24 | 2012-11-23 | 用于生产环状缩醛的方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (8) | US9574061B2 (https=) |
| EP (5) | EP2782906B1 (https=) |
| JP (5) | JP6192652B2 (https=) |
| KR (4) | KR101969615B1 (https=) |
| CN (7) | CN108164500B (https=) |
| WO (7) | WO2013076291A1 (https=) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2782906B1 (en) * | 2011-11-24 | 2019-05-22 | Celanese Sales Germany GmbH | Process for producing a cyclic acetal |
| CN105218513B (zh) * | 2014-05-29 | 2017-12-12 | 中国石油大学(北京) | 一种合成三聚甲醛的方法 |
| FR3024729B1 (fr) * | 2014-08-07 | 2018-09-07 | Arkema France | Procede de preparation du trioxane |
| CN104478848B (zh) * | 2015-01-09 | 2016-06-29 | 开封龙宇化工有限公司 | 一种三聚甲醛脱轻塔分离器加碱水洗装置及使用方法 |
| CN105175389B (zh) * | 2015-09-10 | 2018-09-07 | 中国石油大学(北京) | 一种利用酸和盐催化甲醛合成三聚甲醛的方法 |
| CN107474037A (zh) * | 2017-07-03 | 2017-12-15 | 湖北三里枫香科技有限公司 | 一种多级固定床型三聚甲醛生产工艺方法及制备装置 |
| CN111971276A (zh) * | 2018-03-29 | 2020-11-20 | 塞拉尼斯销售德国有限公司 | 在非均相反应体系中生产环状缩醛的方法 |
| FR3108909A1 (fr) * | 2020-04-07 | 2021-10-08 | Arkema Fance | Recyclage de polyacétal pour la production de polyoxyméthylènedialkyléthers |
| WO2021213663A1 (de) * | 2020-04-23 | 2021-10-28 | Wacker Chemie Ag | Verfahren zur herstellung von aldehyden aus 1,3,5-trioxanen |
| CN116323730A (zh) * | 2020-08-14 | 2023-06-23 | 国际人造丝公司 | 利用生物质来生产聚甲醛共聚物 |
| CN112724118B (zh) * | 2020-12-08 | 2023-02-28 | 中国石油大学(华东) | 一种石油基塑料pom的生物质醇解方法 |
| US20220380557A1 (en) * | 2021-05-20 | 2022-12-01 | Xerox Corporation | Polyoxymethylene microparticles and methods of production and use thereof |
| TW202413339A (zh) * | 2022-06-03 | 2024-04-01 | 日商三菱瓦斯化學股份有限公司 | 組成物、及使用其之三噁烷的製造方法 |
| US11643486B1 (en) | 2022-06-08 | 2023-05-09 | Arkema Inc. | Non-linear vinylidene fluoride copolymers |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1756730A (zh) * | 2003-03-04 | 2006-04-05 | 巴斯福股份公司 | 用于制备高度浓缩的气态甲醛的方法 |
Family Cites Families (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL135961C (https=) | 1961-08-25 | |||
| BE656705A (https=) | 1963-12-05 | |||
| DE1493995A1 (de) | 1964-11-25 | 1969-08-07 | Meissner Fa Josef | Verfahren zum Beheizen einer Destilliereinrichtung bei der Gewinnung von Trioxan aus Formaldehyd |
| AT252913B (de) | 1964-12-29 | 1967-03-10 | Perstorp Aktiebolag | Verfahren zur Herstellung von Trioxan |
| US3457227A (en) | 1965-03-11 | 1969-07-22 | Continental Oil Co | Preparation of polyoxymethylene using metal acetylacetonate polymerization catalysts |
| US3471998A (en) | 1966-08-17 | 1969-10-14 | Asahi Chemical Ind | Process for purifying formaldehyde |
| US3506615A (en) | 1968-01-17 | 1970-04-14 | Celanese Corp | Polymerization of oxymethylene and methylene sulfide forming monomers by metal acetylacetonates |
| US3697546A (en) | 1970-01-14 | 1972-10-10 | Japan Gas Chemical Co | Method of producing trioxan |
| JPS4935839B2 (https=) | 1971-10-19 | 1974-09-26 | ||
| IT1051890B (it) | 1975-12-23 | 1981-05-20 | Sir Soc Italiana Resine Spa | Procedimento migliorato per la stabilizzazione di omopolimmeri acetalici eterificati e di copolimeri acetalici |
| DE2827974C3 (de) | 1978-06-26 | 1980-12-11 | Chemische Werke Huels Ag, 4370 Marl | Verfahren zur Herstellung von 2,4,6-Trialkyl-l,3,5-trioxanen |
| DE2843468A1 (de) | 1978-10-05 | 1980-04-24 | Hoechst Ag | Verfahren zur gleichzeitigen herstellung von trioxan und cyclischen formalen |
| JPS56118079A (en) | 1980-02-22 | 1981-09-16 | Asahi Chem Ind Co Ltd | Synthesis of trioxane |
| US4358623A (en) | 1981-07-23 | 1982-11-09 | Celanese Corporation | Process for catalytically converting methanol to formaldehyde |
| US4420641A (en) | 1981-07-27 | 1983-12-13 | Celanese Corporation | Formaldehyde production |
| US4450301A (en) | 1982-10-21 | 1984-05-22 | Celanese Corporation | Process for converting methanol to formaldehyde |
| DE68914858T2 (de) | 1988-02-03 | 1994-08-11 | Asahi Chemical Ind | Verfahren zur Herstellung von Formaldehyd und dessen Derivaten. |
| GB2218089B (en) | 1988-04-07 | 1991-11-06 | Asahi Chemical Ind | Process for producing high purity formaldehyde |
| DE3920811A1 (de) | 1989-06-24 | 1991-01-03 | Hoechst Ag | Verfahren zur herstellung von formaldehyd |
| DE4137846A1 (de) | 1991-11-16 | 1993-05-19 | Basf Ag | Verfahren zur herstellung von wasserfreiem und von verunreinigungen befreitem formaldehyd |
| ES2104032T3 (es) | 1992-12-31 | 1997-10-01 | Hoechst Ag | Procedimiento para la preparacion de trioxano. |
| JPH06228126A (ja) * | 1993-02-05 | 1994-08-16 | Asahi Chem Ind Co Ltd | トリオキサンの合成方法 |
| US5767294A (en) * | 1993-02-17 | 1998-06-16 | Hoechst Celanese Corporation | Process for the production of trioxane from formaldehyde |
| JP3304679B2 (ja) | 1995-04-21 | 2002-07-22 | ポリプラスチックス株式会社 | トリオキサンの製造方法 |
| US6388102B2 (en) | 1997-06-02 | 2002-05-14 | Ticona Gmbh | Process for the preparation of trioxane and polyoxymethylene copolymers |
| DE19810087A1 (de) | 1998-03-10 | 1999-09-16 | Ticona Gmbh | Verfahren zur nicht oxidativen Herstellung von Formaldehyd aus Methanol |
| US6448448B1 (en) | 1998-03-31 | 2002-09-10 | Ticona Gmbh | Process for the non-oxidative preparation of formaldehyde from methanol |
| US6472566B2 (en) | 1998-03-31 | 2002-10-29 | Ticona Gmbh | Apparatus for the preparation of formaldehyde from methanol |
| US6362305B1 (en) | 1998-03-31 | 2002-03-26 | Ticona Gmbh | Method for producing formaldehyde from methanol |
| DE19822598A1 (de) | 1998-05-20 | 1999-11-25 | Degussa | Verfahren zur Herstellung von Formaldehyd II |
| DE19920830A1 (de) * | 1999-05-06 | 2000-11-09 | Ticona Gmbh | Trimerisierung von Formaldehyd in der Gasphase |
| DE10062814A1 (de) | 2000-12-15 | 2002-06-20 | Ticona Gmbh | Verfahren zur Entfernung von Methanol aus formaldeyhdhaltigen Lösungen |
| JP2002226426A (ja) * | 2001-02-02 | 2002-08-14 | Mitsubishi Gas Chem Co Inc | ジメチロールブタン酸の製造法 |
| US20030166972A1 (en) | 2002-02-20 | 2003-09-04 | Regents Of The University Of California Office Of Technology Licensing | Process for production of formaldehyde from dimethyl ether |
| DE10258663B4 (de) * | 2002-12-13 | 2005-07-28 | Ticona Gmbh | Verfahren zur Herstellung von Trioxan |
| DE102005012480A1 (de) * | 2005-03-16 | 2006-09-21 | Basf Ag | Verfahren zur Entfernung von Restmonomeren aus Polyoxymethylenen |
| KR20080050429A (ko) * | 2005-08-26 | 2008-06-05 | 바스프 에스이 | 폴리옥시메틸렌 단독중합체 또는 공중합체의 제조 방법 |
| JP2007230979A (ja) * | 2006-03-03 | 2007-09-13 | Showa Denko Kk | 1,3−プロパンジオールの製造方法 |
| WO2008012232A1 (de) * | 2006-07-26 | 2008-01-31 | Basf Se | Verfahren zur herstellung von polyoxymethylenen mit bestimmten desaktivatoren |
| BRPI0808459A2 (pt) * | 2007-01-25 | 2014-07-15 | Basf Se | Processos para remover trioxano de uma corrente de entrada i de formaldeído, trioxano e água, e para preparar trioxano a partir de uma solução aquosa de formaldeído |
| JP2010523483A (ja) * | 2007-03-30 | 2010-07-15 | ビーエーエスエフ ソシエタス・ヨーロピア | ポリオキシジアルキルエーテルからの環状ホルムアルデヒド誘導体の製造方法 |
| CN101311154B (zh) * | 2007-05-22 | 2010-08-11 | 富艺国际工程有限公司 | 使用离子液体合成三聚甲醛的方法 |
| CN101665409A (zh) * | 2008-09-04 | 2010-03-10 | 中国科学院兰州化学物理研究所 | 离子液体催化合成1,3-二元醇或其环状缩醛的方法 |
| EP2782906B1 (en) * | 2011-11-24 | 2019-05-22 | Celanese Sales Germany GmbH | Process for producing a cyclic acetal |
-
2012
- 2012-11-23 EP EP12788601.8A patent/EP2782906B1/en not_active Not-in-force
- 2012-11-23 US US14/359,223 patent/US9574061B2/en not_active Expired - Fee Related
- 2012-11-23 EP EP12794929.5A patent/EP2782909A1/en not_active Withdrawn
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