JP2005531634A5 - - Google Patents
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- Publication number
- JP2005531634A5 JP2005531634A5 JP2004517700A JP2004517700A JP2005531634A5 JP 2005531634 A5 JP2005531634 A5 JP 2005531634A5 JP 2004517700 A JP2004517700 A JP 2004517700A JP 2004517700 A JP2004517700 A JP 2004517700A JP 2005531634 A5 JP2005531634 A5 JP 2005531634A5
- Authority
- JP
- Japan
- Prior art keywords
- column
- stream
- component
- overhead
- distillation
- 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.)
- Pending
Links
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims 39
- 238000000034 method Methods 0.000 claims 27
- 238000004821 distillation Methods 0.000 claims 16
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims 14
- 239000000243 solution Substances 0.000 claims 7
- 238000009835 boiling Methods 0.000 claims 6
- 239000007788 liquid Substances 0.000 claims 5
- 239000000203 mixture Substances 0.000 claims 5
- 150000001875 compounds Chemical class 0.000 claims 2
- 239000007864 aqueous solution Substances 0.000 claims 1
- 239000012527 feed solution Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 230000000116 mitigating effect Effects 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- -1 vapor Substances 0.000 claims 1
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/186,764 US6946060B2 (en) | 2002-07-01 | 2002-07-01 | Purification of N,N-dimethylacetamide |
| PCT/US2003/019405 WO2004002926A2 (en) | 2002-07-01 | 2003-06-18 | Purification of n,n-dimethylacetamide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005531634A JP2005531634A (ja) | 2005-10-20 |
| JP2005531634A5 true JP2005531634A5 (enExample) | 2006-08-03 |
Family
ID=29779931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004517700A Pending JP2005531634A (ja) | 2002-07-01 | 2003-06-18 | Ｎ，ｎ−ジメチルアセトアミドの精製 |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US6946060B2 (enExample) |
| EP (1) | EP1551522B1 (enExample) |
| JP (1) | JP2005531634A (enExample) |
| CN (1) | CN1326586C (enExample) |
| AT (1) | ATE427150T1 (enExample) |
| AU (1) | AU2003238296A1 (enExample) |
| CA (1) | CA2491342A1 (enExample) |
| DE (1) | DE60326974D1 (enExample) |
| ES (1) | ES2322049T3 (enExample) |
| NO (1) | NO20050520L (enExample) |
| PT (1) | PT1551522E (enExample) |
| WO (1) | WO2004002926A2 (enExample) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10315214A1 (de) * | 2003-04-03 | 2004-10-14 | Basf Ag | Verfahren zur Reinigung von Dimethylacetamid (DMAC) |
| JP3847754B2 (ja) * | 2004-02-03 | 2006-11-22 | 石油資源開発株式会社 | 蒸留塔を用いた水銀除去方法 |
| DE102004030616A1 (de) * | 2004-06-24 | 2006-01-26 | Basf Ag | Verfahren zur Reinigung von Dimethylacetamid (DMAc) |
| EP1712544A1 (de) * | 2005-04-12 | 2006-10-18 | Lonza Ag | Verfahren zur Herstellung von Acetessigsäurearylamiden |
| CN101462977B (zh) * | 2008-07-25 | 2012-07-25 | 烟台泰和新材料股份有限公司 | N,n-二甲基乙酰胺的纯化方法 |
| CN102030672B (zh) * | 2010-12-09 | 2013-10-09 | 南京大学 | 氨纶生产过程中回收超高纯n,n-二甲基乙酰胺溶剂的工艺 |
| RU2509593C1 (ru) * | 2012-10-29 | 2014-03-20 | федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный исследовательский университет "МЭИ" (ФГБОУ ВПО "НИУ МЭИ") | Способ автоматического управления процессом ректификации и устройство для его осуществления |
| CN102921306B (zh) * | 2012-11-16 | 2015-05-20 | 北京碧水源膜科技有限公司 | 分离膜凝胶浴溶液回收方法及使用回收物制备的分离膜 |
| CN102993039A (zh) * | 2012-12-18 | 2013-03-27 | 常州大学 | 一种回收聚醚砜纺丝废水中二甲基乙酰胺的方法 |
| CN103145577B (zh) * | 2013-02-25 | 2014-08-27 | 天津天中福大科技发展有限公司 | 从制药废液中回收二甲基乙酰胺的方法、设备及热耦合方法 |
| US10384146B2 (en) | 2013-07-18 | 2019-08-20 | Lg Chem, Ltd. | Divided wall distillation column |
| WO2015009116A1 (ko) * | 2013-07-18 | 2015-01-22 | 주식회사 엘지화학 | 증류 장치 |
| RU2558596C2 (ru) * | 2013-11-15 | 2015-08-10 | федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный исследовательский университет "МЭИ" (ФГБОУ ВПО "НИУ МЭИ") | Способ автоматического управления эффективностью функционирования процесса ректификации |
| CN104016873B (zh) * | 2014-05-28 | 2015-10-28 | 深圳市灿森科技有限公司 | 塑料膜或者聚酰亚胺膜生产中废液的回收方法 |
| CN104926675A (zh) * | 2015-05-18 | 2015-09-23 | 深圳市瑞升华科技股份有限公司 | 低浓度二甲基乙酰胺的回收工艺 |
| US11352255B2 (en) * | 2016-12-13 | 2022-06-07 | Avantium Knowledge Centre B.V. | Process for purifying a contaminated hydrochloric acid composition |
| US10287222B1 (en) * | 2017-10-20 | 2019-05-14 | Uop Llc | Process and apparatus for desorbent recovery |
| CN108299190B (zh) * | 2018-03-07 | 2021-03-02 | 福州大学 | 一种分离共沸体系的方法 |
| FR3084668A1 (fr) | 2018-08-02 | 2020-02-07 | Guerbet | Procede de preparation monotope de composes organo-iodes intermediaires a la synthese du ioversol |
| CN109320432A (zh) * | 2018-10-31 | 2019-02-12 | 浙江本优机械有限公司 | 一种用于低浓度二甲基乙酰胺回收提纯的蒸发设备 |
| CN109745723B (zh) * | 2018-12-29 | 2021-07-06 | 恒天纤维集团有限公司 | 一种双塔连续供料精馏系统及控制方法 |
| CN110127789A (zh) * | 2019-05-08 | 2019-08-16 | 河北德瑞化工有限公司 | 一种废水处理系统及其废水处理方法 |
| JP7255042B2 (ja) * | 2019-05-20 | 2023-04-11 | 株式会社レゾナック | Ｎ，ｎ－ジメチルカルボン酸アミドの製造方法 |
| DK180599B1 (en) | 2020-01-20 | 2021-10-14 | Blue World Technologies Holding ApS | Apparatus and process for making acid-doped proton exchange membranes |
| CN116903083B (zh) * | 2023-09-07 | 2023-11-21 | 河北乐凯化工工程设计有限公司 | 一种含dmac工业废水的回收处理工艺 |
| CN118925248B (zh) * | 2024-07-22 | 2025-09-12 | 太仓沪试试剂有限公司 | 一种蒸馏装置及基于该蒸馏装置的n,n-二甲基甲酰胺纯化工艺 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3419478A (en) * | 1966-12-13 | 1968-12-31 | Du Pont | Azeotropic distillation of a n,n-dimethylacetamide-acetic acid mixture using a saturated aliphatic hydrocarbon |
| NL6717010A (enExample) * | 1966-12-15 | 1968-06-17 | ||
| US3687820A (en) * | 1970-11-23 | 1972-08-29 | Du Pont | Process for separating mixtures of n,n-dimethylacetamides and acetic acid by distilling with alternate pressures |
| DE2408011A1 (de) * | 1974-02-20 | 1975-09-04 | Hoechst Ag | Verfahren zur gewinnung von technisch reiner essigsaeure durch extraktivdestillation |
| US3959371A (en) | 1974-10-08 | 1976-05-25 | Custom Organics, Inc. | Process for the purification of N,N-dimethylacetamide |
| DE2631734B2 (de) * | 1976-07-15 | 1978-11-30 | Bayer Ag, 5090 Leverkusen | Verfahren zur Ruckgewinnung von Dimethylac) !amiden |
| NL8103517A (nl) * | 1981-07-24 | 1983-02-16 | Badger Bv | Werkwijze voor het scheiden van carbonzuren van mengsels met niet-zuren door een absorptie-stripbehandeling. |
| US5124004A (en) * | 1983-08-22 | 1992-06-23 | Trustees Of Dartmouth College | Distillation process for ethanol |
| DE4109632A1 (de) * | 1991-03-23 | 1992-09-24 | Krupp Koppers Gmbh | Verfahren zur abtrennung von aromaten durch extraktivdestillation |
| FR2751558B1 (fr) * | 1996-07-26 | 1998-09-18 | Inst Francais Du Petrole | Dispositif de reaction et de distillation et procede d'etherification |
-
2002
- 2002-07-01 US US10/186,764 patent/US6946060B2/en not_active Expired - Lifetime
-
2003
- 2003-06-18 AU AU2003238296A patent/AU2003238296A1/en not_active Abandoned
- 2003-06-18 EP EP03737193A patent/EP1551522B1/en not_active Expired - Lifetime
- 2003-06-18 CA CA002491342A patent/CA2491342A1/en not_active Abandoned
- 2003-06-18 AT AT03737193T patent/ATE427150T1/de not_active IP Right Cessation
- 2003-06-18 CN CNB038154617A patent/CN1326586C/zh not_active Expired - Fee Related
- 2003-06-18 WO PCT/US2003/019405 patent/WO2004002926A2/en not_active Ceased
- 2003-06-18 ES ES03737193T patent/ES2322049T3/es not_active Expired - Lifetime
- 2003-06-18 JP JP2004517700A patent/JP2005531634A/ja active Pending
- 2003-06-18 PT PT03737193T patent/PT1551522E/pt unknown
- 2003-06-18 DE DE60326974T patent/DE60326974D1/de not_active Expired - Fee Related
-
2005
- 2005-01-31 NO NO20050520A patent/NO20050520L/no not_active Application Discontinuation
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