NO20050520L - Rensingav N,N-dimetylacetamdi - Google Patents

Rensingav N,N-dimetylacetamdi

Info

Publication number
NO20050520L
NO20050520L NO20050520A NO20050520A NO20050520L NO 20050520 L NO20050520 L NO 20050520L NO 20050520 A NO20050520 A NO 20050520A NO 20050520 A NO20050520 A NO 20050520A NO 20050520 L NO20050520 L NO 20050520L
Authority
NO
Norway
Prior art keywords
column
acetic acid
dmac
contaminant
dimethylacetamide
Prior art date
Application number
NO20050520A
Other languages
English (en)
Norwegian (no)
Inventor
Michael J Gentilcore
Original Assignee
Mallinckrodt Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mallinckrodt Inc filed Critical Mallinckrodt Inc
Publication of NO20050520L publication Critical patent/NO20050520L/no

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C231/00—Preparation of carboxylic acid amides
    • C07C231/22—Separation; Purification; Stabilisation; Use of additives
    • C07C231/24—Separation; Purification
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
    • B01D3/146—Multiple effect distillation
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/09—Plural feed

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Pyrrole Compounds (AREA)
  • Detergent Compositions (AREA)
NO20050520A 2002-07-01 2005-01-31 Rensingav N,N-dimetylacetamdi NO20050520L (no)

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 (1)

Publication Number Publication Date
NO20050520L true NO20050520L (no) 2005-01-31

Family

ID=29779931

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20050520A NO20050520L (no) 2002-07-01 2005-01-31 Rensingav N,N-dimetylacetamdi

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)

* Cited by examiner, † Cited by third party
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
WO2015009116A1 (ko) * 2013-07-18 2015-01-22 주식회사 엘지화학 증류 장치
US9895624B2 (en) 2013-07-18 2018-02-20 Lg Chem, Ltd. Distillation device
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
BR112019010897B1 (pt) * 2016-12-13 2023-10-24 Avantium Knowledge Centre B.V Processo para preparar uma composição de ácido clorídrico purificada, e, composição de ácido clorídrico purificada
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
CN1665574A (zh) 2005-09-07
WO2004002926A2 (en) 2004-01-08
US6946060B2 (en) 2005-09-20
CN1326586C (zh) 2007-07-18
JP2005531634A (ja) 2005-10-20
WO2004002926A3 (en) 2004-06-03
ES2322049T3 (es) 2009-06-16
AU2003238296A8 (en) 2004-01-19
ATE427150T1 (de) 2009-04-15
PT1551522E (pt) 2009-07-01
CA2491342A1 (en) 2004-01-08
US20040000470A1 (en) 2004-01-01
DE60326974D1 (de) 2009-05-14
EP1551522A4 (en) 2005-10-19
AU2003238296A1 (en) 2004-01-19
EP1551522B1 (en) 2009-04-01
EP1551522A2 (en) 2005-07-13

Similar Documents

Publication Publication Date Title
NO20050520L (no) Rensingav N,N-dimetylacetamdi
DK0658164T3 (da) Fremgangsmåde til chromatografisk oprensning og adskillelse af nukleinsyreblandinger
KR960007526A (ko) 아세트산의 정제방법
DE50312257D1 (de) (meth)acrylsaeurekristall und verfahren zur herstellung und aufreinigung von waessriger (meth)acrylsaeure
MXPA03005247A (es) Procedimiento para furificacion de mezclas de toluenodiisocianato.
KR960700984A (ko) 2원 공비물 성분의 정제방법
ATE406345T1 (de) Reinigung von aminosäuren durch chromatographische simulierte wanderbetttrennung
MY141216A (en) Separation of sugars
DE60307908D1 (de) Verfahren zur Reinigung von Hexafluor-1,3-Butadien
DE50209729D1 (de) Verfahren zur herstellung von (meth)acrylsaeureestern
BR0215191A (pt) Processo para a purificação e/ou isolamento de fator de estimulação de colÈnia de granulócito biologicamente ativo
TW200508179A (en) Purification of dimethylacetamide (DMAc)
ATE405540T1 (de) Verfahren zur destillativen trennung von wässrigen aminlösungen
ATE395324T1 (de) Verfahren zur reinigung von dimethylacetamid (dmac)
DE602004018013D1 (de) Aufreinigung von tertiärem butylalkohol
AU2003214082A1 (en) Method for purifying tetrahydrofuran by distillation
BRPI0402404A (pt) Processo para a preparação de ácido metacrìlico de alta pureza, ácido metacrìlico de alta pureza, e, métodos para impedir a decomposição de hiba dentro de uma corrente contendo ácido metacrìlico e um catalisador ácido, para remover hiba de uma corrente contendo ácido metacrìlico e para purificar uma corrente de maa contendo hiba em um processo de purificação
DE69903645D1 (de) Verfahren zur Extraktion von Lycopin
KR930018035A (ko) 네오트레할로오스의 제조 방법 및 그 용도
DE60327583D1 (de) Methode zur Trennung und Aufreinigung von Nukleinsäuren
ATE395319T1 (de) Verfahren zur reinigung von acrolein
FR2730228B1 (fr) Procede de purification du pentafluoroethane
DK1062190T3 (da) Fremgangsmåde til fremstilling af [15O]butanol og indretning til gennemførelse af fremgangsmåden
CN104098510B (zh) 一种从高乌头植物根中提取高乌甲素的方法
DE69407834D1 (de) Verfahren und Vorrichtung zur Reinigung des aus gasförmigen Reaktionsgemischen regenerierten rohen Maleinsäureanhydrids

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application