ATA504177A - Verfahren zur rueckgewinnung von dimethyl- acylamiden - Google Patents

Verfahren zur rueckgewinnung von dimethyl- acylamiden

Info

Publication number
ATA504177A
ATA504177A AT504177A AT504177A ATA504177A AT A504177 A ATA504177 A AT A504177A AT 504177 A AT504177 A AT 504177A AT 504177 A AT504177 A AT 504177A AT A504177 A ATA504177 A AT A504177A
Authority
AT
Austria
Prior art keywords
acylamides
dimethyl
recovery
dimethyl acylamides
Prior art date
Application number
AT504177A
Other languages
English (en)
Original Assignee
Bayer Ag
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 Bayer Ag filed Critical Bayer Ag
Publication of ATA504177A publication Critical patent/ATA504177A/de

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F13/00—Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like
    • D01F13/04—Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like of synthetic polymers
    • 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
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
AT504177A 1976-07-15 1977-07-13 Verfahren zur rueckgewinnung von dimethyl- acylamiden ATA504177A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2631734A DE2631734B2 (de) 1976-07-15 1976-07-15 Verfahren zur Ruckgewinnung von Dimethylac) !amiden

Publications (1)

Publication Number Publication Date
ATA504177A true ATA504177A (de) 1979-03-15

Family

ID=5983029

Family Applications (1)

Application Number Title Priority Date Filing Date
AT504177A ATA504177A (de) 1976-07-15 1977-07-13 Verfahren zur rueckgewinnung von dimethyl- acylamiden

Country Status (6)

Country Link
US (1) US4177111A (de)
AT (1) ATA504177A (de)
DE (1) DE2631734B2 (de)
FR (1) FR2358478A1 (de)
GB (1) GB1567559A (de)
NL (1) NL7707825A (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR8106261A (pt) * 1980-01-28 1981-11-17 S Fogel Processo e aparelho para destilar elevados volumes de liquidos impuros,processo e aparelho para producao e coleta de grandes quantidades de mel
CA1179291A (en) * 1981-10-30 1984-12-11 David T. Ahlberg Distillation apparatus
US4566947A (en) * 1984-09-27 1986-01-28 Hidemasa Tsuruta Method of separating a mixed liquid into light and heavy fractions by distillation
GB8601081D0 (en) * 1986-01-17 1986-02-19 Distillers Co Carbon Dioxide Removing water from ethanol
JP3221695B2 (ja) * 1991-07-25 2001-10-22 フレゼニウス川澄株式会社 不揮発物を含む原液からのヒートポンプ方式による溶剤回収方法
TW290470B (de) * 1993-12-28 1996-11-11 Mitsubishi Chemicals Co Ltd
US6946060B2 (en) * 2002-07-01 2005-09-20 Mallinckrodt Inc. Purification of N,N-dimethylacetamide
CN100342986C (zh) * 2004-12-22 2007-10-17 哈尔滨工业大学 从头孢哌酮钠生产废液中回收二甲基乙酰胺的方法
US7981256B2 (en) * 2007-11-09 2011-07-19 Uop Llc Splitter with multi-stage heat pump compressor and inter-reboiler
US8323457B2 (en) * 2008-10-30 2012-12-04 Kellogg Brown & Root Llc Dividing wall column with a heat pump
CN102383225A (zh) * 2011-10-25 2012-03-21 双良节能系统股份有限公司 氨纶dmac回收和热能利用系统
CN104178848B (zh) * 2013-05-20 2016-06-08 中国石油天然气股份有限公司 碳纤维原丝制备工艺中产生的废纺丝液的回收装置及方法
KR101804637B1 (ko) 2014-10-31 2018-01-10 주식회사 엘지화학 증류 장치
CN111454169B (zh) * 2020-03-31 2023-03-28 苏州予信天材新材料应用技术有限公司 一种含n,n-二甲基乙酰胺的废有机溶剂的回收方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE934663C (de) * 1952-07-22 1955-11-03 Bayer Ag Verfahren zur Rueckgewinnung von Loesungsmitteln beim Trockenspinnen von Polyacrylsaeurenitril
US2829088A (en) * 1952-11-08 1958-04-01 Glanzstoff Ag Process of refining dimethylformamide
DE1114168B (de) * 1960-08-03 1961-09-28 Bayer Ag Destillationsvorrichtung mit Waermepumpe
US3072725A (en) * 1960-11-14 1963-01-08 Du Pont Preparation of dimethylformamide
NL271425A (de) * 1960-11-26
US3342862A (en) * 1964-08-14 1967-09-19 Monsanto Co Method for producing dimethylacetamide
FR1454462A (fr) * 1965-08-12 1966-02-11 Raffinage Cie Francaise Procédé de récupération des alkylamides
US3414484A (en) * 1966-06-20 1968-12-03 Universal Oil Prod Co Process for separating ethylbenzene from c8 aromatic hydrocarbons by super-distillation with vapor compression-reboiler heat exchange
US3557207A (en) * 1967-02-07 1971-01-19 Du Pont Method for recovering n,n-dimethylacetamide
US3558702A (en) * 1967-11-24 1971-01-26 Snia Viscosa Method for purifying dimethylformamide recovered from acrylonitrile polymerization processes in the commercial production of polyacrylonitrile fibers and yarns
DE2419723A1 (de) * 1974-04-24 1975-12-11 Bayer Ag Trennung von gemischen mit nahe benachbarten siedepunkten im vakuum

Also Published As

Publication number Publication date
NL7707825A (nl) 1978-01-17
US4177111A (en) 1979-12-04
FR2358478A1 (fr) 1978-02-10
DE2631734B2 (de) 1978-11-30
GB1567559A (en) 1980-05-14
DE2631734A1 (de) 1978-01-19

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Legal Events

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