JPS5716860A - Method and apparatus for continuously thermally separating thermally unsatble liquid mixture,particularly caprolactam from acidic impurities or nuetral derivatives mainly - Google Patents

Method and apparatus for continuously thermally separating thermally unsatble liquid mixture,particularly caprolactam from acidic impurities or nuetral derivatives mainly

Info

Publication number
JPS5716860A
JPS5716860A JP4384181A JP4384181A JPS5716860A JP S5716860 A JPS5716860 A JP S5716860A JP 4384181 A JP4384181 A JP 4384181A JP 4384181 A JP4384181 A JP 4384181A JP S5716860 A JPS5716860 A JP S5716860A
Authority
JP
Japan
Prior art keywords
thermally
unsatble
nuetral
liquid mixture
acidic impurities
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
Application number
JP4384181A
Other languages
English (en)
Japanese (ja)
Inventor
Guruutaa Yohan
Banetsutei Jiobanni
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Luwa Ltd
Original Assignee
Luwa Ltd
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 Luwa Ltd filed Critical Luwa Ltd
Publication of JPS5716860A publication Critical patent/JPS5716860A/ja
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/16—Separation or 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
    • B01D3/148—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step in combination with at least one evaporator

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
JP4384181A 1980-03-25 1981-03-25 Method and apparatus for continuously thermally separating thermally unsatble liquid mixture,particularly caprolactam from acidic impurities or nuetral derivatives mainly Pending JPS5716860A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8020902A IT8020902A0 (it) 1980-03-25 1980-03-25 Procedimento ed apparecchiatura per la separazione continua per via termica di miscele liquide dicomposti termolabili.

Publications (1)

Publication Number Publication Date
JPS5716860A true JPS5716860A (en) 1982-01-28

Family

ID=11173792

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4384181A Pending JPS5716860A (en) 1980-03-25 1981-03-25 Method and apparatus for continuously thermally separating thermally unsatble liquid mixture,particularly caprolactam from acidic impurities or nuetral derivatives mainly

Country Status (8)

Country Link
JP (1) JPS5716860A (enExample)
BE (1) BE888091A (enExample)
BR (1) BR8101743A (enExample)
DE (1) DE3106350A1 (enExample)
FR (1) FR2479217A1 (enExample)
GB (1) GB2072025B (enExample)
IT (1) IT8020902A0 (enExample)
NL (1) NL8101330A (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3338488A1 (de) * 1982-10-29 1984-05-03 Basf Ag, 6700 Ludwigshafen Verfahren zur gewinnung von temperaturempfindlichen produkten durch thermisch schonende destillation mittels eines mit einer destillationskolonne verbundenen duennschichtverdampfers und eine anordnung zur durchfuehrung des verfahrens
FR2540512B1 (fr) * 1983-02-07 1988-09-09 Martel Jean Pierre Procede et installation polyvalente de distillerie avec concentration d'effluents ou de liquides thermosensibles
DE4407222A1 (de) * 1994-03-04 1995-09-07 Basf Ag Verfahren zur Rückgewinnung von Caprolactam aus Oliogo- und/oder Polymeren des Caprolactams
FR2809395B1 (fr) 2000-05-26 2002-07-19 Rhodia Polyamide Intermediates Procede de purification de lactames
HRP20020005A2 (en) 2000-12-28 2003-04-30 Lundbeck & Co As H Process for the preparation of pure citalopram
EP1996486B1 (en) 2006-02-02 2016-07-06 Coty S.A.S. Enclosure for a pressurized spray container
USD666491S1 (en) 2011-07-15 2012-09-04 S.C. Johnson & Son, Inc. Overcap
CN111265902B (zh) * 2020-03-09 2023-04-21 内蒙古兰格生物科技有限公司 连续精馏装置
WO2022106685A1 (de) * 2020-11-23 2022-05-27 Covestro Deutschland Ag Destillationseinheit und verfahren zur trennung eines flüssigen stoffgemisches in 2 bis 6 flüssige produktströme unterschiedlicher zusammensetzung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2035859A1 (en) * 1969-09-09 1971-03-11 VEB Chemieanlagenbau Erfurt Rudis leben, χ 5211 Rudisieben Purification of thermally unstable mater- - ials eg caprolactam
IT1113404B (it) * 1979-02-28 1986-01-20 Snia Viscosa Internazionale brevetti s.r.l.via brentano 2 milano

Also Published As

Publication number Publication date
BR8101743A (pt) 1981-09-29
FR2479217A1 (fr) 1981-10-02
GB2072025B (en) 1983-11-30
IT8020902A0 (it) 1980-03-25
NL8101330A (nl) 1981-10-16
GB2072025A (en) 1981-09-30
FR2479217B1 (enExample) 1984-06-08
DE3106350A1 (de) 1981-12-24
BE888091A (fr) 1981-09-24

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