EP1945689A1 - Verfahren zur herstellung von trioxan und mindestens einem comonomer - Google Patents
Verfahren zur herstellung von trioxan und mindestens einem comonomerInfo
- Publication number
- EP1945689A1 EP1945689A1 EP06807603A EP06807603A EP1945689A1 EP 1945689 A1 EP1945689 A1 EP 1945689A1 EP 06807603 A EP06807603 A EP 06807603A EP 06807603 A EP06807603 A EP 06807603A EP 1945689 A1 EP1945689 A1 EP 1945689A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stream
- comonomer
- formaldehyde
- trioxane
- water
- 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.)
- Withdrawn
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
- C08G2/10—Polymerisation of cyclic oligomers of formaldehyde
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
- C07D317/10—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
- C07D317/12—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D319/00—Heterocyclic compounds containing six-membered rings having 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
- C07D323/06—Trioxane
-
- 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
- C08G2/18—Copolymerisation of aldehydes or ketones
- C08G2/20—Copolymerisation of aldehydes or ketones with other aldehydes or ketones
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Definitions
- Comonomers prepared by the process according to the invention are, for example, cyclic ethers of the formula (I)
- the at least one comonomer starting material is selected in each case such that the desired comonomer is produced by reaction with formaldehyde under the conditions prevailing in the reactor.
- the stream B1 enriched in trioxane and comonomer generally contains 25 to 80% by weight of trioxane, 10 to 65% by weight of comonomer, 1 to 20% by weight of formaldehyde and 5 to 25% by weight of water.
- the stream B1 preferably contains from 30 to 60% by weight of trioxane, from 15 to 60% by weight of comonomer, from 1 to 15% by weight of formaldehyde and from 5 to 20% by weight of water.
- the stream B2 generally contains 40 to 75% by weight of formaldehyde, 15 to 50% by weight of water and 5 to 50% by weight of the at least one comonomer starting material.
- the stream B2 preferably contains from 40 to 75% by weight of formaldehyde, from 15 to 50% by weight of water and from 10 to 40% by weight of the at least one comonomer starting material.
- stream B2 may contain at most 5% by weight, preferably not more than 3% by weight, and in particular not more than 2% by weight, of trioxane and comonomer.
- the reaction mixture A1 containing the trioxane, comonomer, formaldehyde, water and optionally comonomer starting material of the distillation column, in which the first distillation stage b) is carried out preferably added gaseous or liquid as side feed.
- the stream B1 enriched in trioxane and comonomer is preferably taken off as top draw stream and stream B2 containing essentially water, formaldehyde and optionally comonomer starting material as bottom draw stream.
- the aqueous formaldehyde solution E1 fed to the concentration unit generally contains from 25 to 65% by weight of formaldehyde and from 35 to 75% by weight of water, preferably from 30 to 60% by weight of formaldehyde and from 40 to 70% by weight of water.
- the formaldehyde-rich stream E3 obtained in the concentration generally contains at least 50% by weight of formaldehyde, preferably at least 55% by weight of formaldehyde.
- the low-formaldehyde stream E2 generally contains at most 35% by weight of formaldehyde, preferably at most 30% by weight of formaldehyde.
- the formaldehyde-rich stream E3 obtained during the concentration preferably accumulates as the bottom draw stream and the formaldehyde-lean stream E2 as top or bottom draw stream.
- the low-formaldehyde stream E2 is preferably fed to the third distillation stage.
- This stream is fed to a second distillation column and in this at a bottom temperature of 167 ° C and a pressure of 5 bar in a withdrawn at the top of the second distillation column stream of 15.6 kg / h, the 48.1 wt .-% Trioxane, 23.9 wt .-% water, 22.4 wt .-% dioxolane and 5.6 wt .-% formaldehyde, and a withdrawn at the bottom product stream of 3.4 kg / h, the 99.4 wt.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005051974A DE102005051974A1 (de) | 2005-10-31 | 2005-10-31 | Verfahren zur Herstellung von Trioxan und mindestens einem Comonomer |
PCT/EP2006/067851 WO2007051762A1 (de) | 2005-10-31 | 2006-10-27 | Verfahren zur herstellung von trioxan und mindestens einem comonomer |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1945689A1 true EP1945689A1 (de) | 2008-07-23 |
Family
ID=37478874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06807603A Withdrawn EP1945689A1 (de) | 2005-10-31 | 2006-10-27 | Verfahren zur herstellung von trioxan und mindestens einem comonomer |
Country Status (11)
Country | Link |
---|---|
US (1) | US20080283384A1 (ko) |
EP (1) | EP1945689A1 (ko) |
JP (1) | JP2009513687A (ko) |
KR (1) | KR20080075126A (ko) |
CN (1) | CN101321789A (ko) |
AU (1) | AU2006310554A1 (ko) |
BR (1) | BRPI0618065A2 (ko) |
CA (1) | CA2627080A1 (ko) |
DE (1) | DE102005051974A1 (ko) |
NO (1) | NO20081897L (ko) |
WO (1) | WO2007051762A1 (ko) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
VN29235A1 (ko) * | 2009-06-04 | 2012-03-26 | ||
US8829206B2 (en) | 2011-06-24 | 2014-09-09 | Eastman Chemical Company | Production of cyclic acetals or ketals using solid acid catalysts |
US9388105B2 (en) | 2011-06-24 | 2016-07-12 | Eastman Chemical Company | Production of hydroxy ether hydrocarbons by liquid phase hydrogenolysis of cyclic acetals or cyclic ketals |
US8785697B2 (en) | 2011-06-24 | 2014-07-22 | Eastman Chemical Company | Nickel modified catalyst for the production of hydroxy ether hydrocarbons by vapor phase hydrogenolysis of cyclic acetals and ketals |
US8829207B2 (en) | 2011-06-24 | 2014-09-09 | Eastman Chemical Company | Production of cyclic acetals by reactive distillation |
US9056313B2 (en) | 2011-06-24 | 2015-06-16 | Eastman Chemical Company | Catalysts for the production of hydroxy ether hydrocarbons by vapor phase hydrogenolysis of cyclic acetals and ketals |
US8969598B2 (en) | 2011-06-24 | 2015-03-03 | Eastman Chemical Company | Production of cyclic acetals or ketals using liquid-phase acid catalysts |
US9000229B2 (en) | 2011-06-24 | 2015-04-07 | Eastman Chemical Company | Production of hydroxy ether hydrocarbons by vapor phase hydrogenolysis of cyclic acetals and ketals |
CN108031132A (zh) * | 2018-01-12 | 2018-05-15 | 无锡宝南机器制造有限公司 | 双塔降膜蒸发器组 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1668687B2 (de) * | 1968-02-24 | 1976-06-24 | Schering Ag, 1000 Berlin Und 4619 Bergkamen | Neue 18-methyl-5alpha-h-androstane, verfahren zu ihrer herstellung sowie diese enthaltende arzneimittel |
DE2843468A1 (de) * | 1978-10-05 | 1980-04-24 | Hoechst Ag | Verfahren zur gleichzeitigen herstellung von trioxan und cyclischen formalen |
DE2853091A1 (de) * | 1978-12-08 | 1980-06-26 | Hoechst Ag | Verfahren zur kontinuierlichen herstellung von trioxan |
DE2912767A1 (de) * | 1979-03-30 | 1980-10-09 | Hoechst Ag | Verfahren zur kontinuierlichen herstellung von trioxan |
DE2943984A1 (de) * | 1979-10-31 | 1981-05-14 | Hoechst Ag, 6000 Frankfurt | Verfahren und vorrichtung zur kontinuierlichen herstellung von trioxan |
DE3445921A1 (de) * | 1984-12-17 | 1986-06-19 | Hoechst Ag, 6230 Frankfurt | Verfahren zur kontinuierlichen herstellung von trioxan |
DE19630670A1 (de) * | 1996-07-30 | 1998-02-05 | Basf Ag | Verfahren zur Herstellung von Aminen aus Olefinen an Zeolithen mit NES-Struktur |
DE19732291A1 (de) * | 1997-07-26 | 1999-01-28 | Basf Ag | Verfahren zur Abtrennung von Trioxan |
DE10215976A1 (de) * | 2002-04-11 | 2003-10-23 | Basf Ag | Herstellung von Polyoxymethylen und dafür geeignete Katalysatoren III |
DE10361516A1 (de) * | 2003-12-23 | 2005-07-28 | Basf Ag | Verfahren zur Abtrennung von Trioxan aus einem Trioxan/Formaldehyd/Wasser-Gemisch mittels Druckwechsel-Rektifikation |
-
2005
- 2005-10-31 DE DE102005051974A patent/DE102005051974A1/de not_active Withdrawn
-
2006
- 2006-10-27 US US12/091,976 patent/US20080283384A1/en not_active Abandoned
- 2006-10-27 WO PCT/EP2006/067851 patent/WO2007051762A1/de active Application Filing
- 2006-10-27 EP EP06807603A patent/EP1945689A1/de not_active Withdrawn
- 2006-10-27 JP JP2008538342A patent/JP2009513687A/ja not_active Withdrawn
- 2006-10-27 CA CA002627080A patent/CA2627080A1/en not_active Abandoned
- 2006-10-27 CN CNA2006800451230A patent/CN101321789A/zh active Pending
- 2006-10-27 KR KR1020087013040A patent/KR20080075126A/ko not_active Application Discontinuation
- 2006-10-27 AU AU2006310554A patent/AU2006310554A1/en not_active Abandoned
- 2006-10-27 BR BRPI0618065A patent/BRPI0618065A2/pt not_active IP Right Cessation
-
2008
- 2008-04-22 NO NO20081897A patent/NO20081897L/no not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO2007051762A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN101321789A (zh) | 2008-12-10 |
NO20081897L (no) | 2008-05-27 |
AU2006310554A1 (en) | 2007-05-10 |
DE102005051974A1 (de) | 2007-05-03 |
BRPI0618065A2 (pt) | 2016-09-13 |
KR20080075126A (ko) | 2008-08-14 |
WO2007051762A1 (de) | 2007-05-10 |
US20080283384A1 (en) | 2008-11-20 |
CA2627080A1 (en) | 2007-05-10 |
JP2009513687A (ja) | 2009-04-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20080602 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
17Q | First examination report despatched |
Effective date: 20080911 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20090305 |