DE1807654B2 - - Google Patents

Info

Publication number
DE1807654B2
DE1807654B2 DE1807654A DE1807654A DE1807654B2 DE 1807654 B2 DE1807654 B2 DE 1807654B2 DE 1807654 A DE1807654 A DE 1807654A DE 1807654 A DE1807654 A DE 1807654A DE 1807654 B2 DE1807654 B2 DE 1807654B2
Authority
DE
Germany
Prior art keywords
liquid
column
pressure
stripping column
cooler
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.)
Granted
Application number
DE1807654A
Other languages
German (de)
English (en)
Other versions
DE1807654C3 (de
DE1807654A1 (de
Inventor
Michio Hattori
Yoneichi Ikeda
Yutaka Kiyomiya
Tsukasa Takeda
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.)
Mitsubishi Chemical Corp
Original Assignee
Nitto Chemical Industry Co 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 Nitto Chemical Industry Co Ltd filed Critical Nitto Chemical Industry Co Ltd
Publication of DE1807654A1 publication Critical patent/DE1807654A1/de
Publication of DE1807654B2 publication Critical patent/DE1807654B2/de
Application granted granted Critical
Publication of DE1807654C3 publication Critical patent/DE1807654C3/de
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00—Preparation of carboxylic acid nitriles
    • C07C253/32—Separation; Purification; Stabilisation; Use of additives
    • C07C253/34—Separation; Purification
    • 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
    • Y10S203/03—Acrylonitrile
    • 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
    • Y10S203/08—Waste heat

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
DE1807654A 1967-11-08 1968-11-07 Verfahren zur Trennung von Acrylnitril und Acetonitril Expired DE1807654C3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7183967 1967-11-08
JP2855568 1968-04-30

Publications (3)

Publication Number Publication Date
DE1807654A1 DE1807654A1 (de) 1969-06-19
DE1807654B2 true DE1807654B2 (https=) 1974-05-02
DE1807654C3 DE1807654C3 (de) 1974-12-19

Family

ID=26366683

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1807654A Expired DE1807654C3 (de) 1967-11-08 1968-11-07 Verfahren zur Trennung von Acrylnitril und Acetonitril

Country Status (3)

Country Link
US (1) US3694322A (https=)
DE (1) DE1807654C3 (https=)
GB (1) GB1239460A (https=)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059492A (en) * 1970-10-15 1977-11-22 Erdolchemie Gmbh Process for the purification of waste from acrylonitrile production
BE791286A (fr) * 1971-11-17 1973-03-01 Snam Progetti Procede de purification d'acrylonitrile
US4090922A (en) * 1973-12-07 1978-05-23 Bayer Aktiengesellschaft Carrier-vapor distillation
AU520819B2 (en) * 1977-08-09 1982-03-04 Enimont Anic S.r.l Extracting aromatic hydrocarbons from mixtures
JPS5463982A (en) * 1977-10-31 1979-05-23 Yaeko Kise Assembled container
US4246417A (en) * 1978-05-15 1981-01-20 The Lummus Company Treatment of waste water from nitrile production
US4360676A (en) * 1979-11-30 1982-11-23 Ciba-Geigy Corporation 3,3,5-Trichloroglutaric acid imide
DE3070085D1 (en) * 1979-11-30 1985-03-14 Ciba Geigy Ag Process for the preparation of 2,3,5,6-tetrachloropyridine and 3,5,6-trichloropyridin-2-ol
US4362603A (en) * 1981-01-02 1982-12-07 The Standard Oil Company Continuous acetonitrile recovery process
US4404064A (en) * 1982-12-30 1983-09-13 Monsanto Company Water extractive distillation of olefinically unsaturated nitriles
RU2196766C2 (ru) * 1997-08-06 2003-01-20 Дзе Стандарт Ойл Компани Способ извлечения акрилонитрила или метакрилонитрила
CN106167282A (zh) * 2016-07-26 2016-11-30 安徽天地高纯溶剂有限公司 一种新型乙腈废液回收装置
US20250161838A1 (en) * 2022-01-18 2025-05-22 Dev Mohan MOHUNTA Separation of hydrocarbons by extractive solvent
CN114656095A (zh) * 2022-04-28 2022-06-24 浙江台州市联创环保科技股份有限公司 一种用于医药废水的萃取精馏设备及其处理工艺

Also Published As

Publication number Publication date
DE1807654C3 (de) 1974-12-19
DE1807654A1 (de) 1969-06-19
GB1239460A (https=) 1971-07-14
US3694322A (en) 1972-09-26

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee