RO83616B - Procedeu pentru recuperarea continua a acetonitrilului - Google Patents

Procedeu pentru recuperarea continua a acetonitrilului

Info

Publication number
RO83616B
RO83616B RO106212A RO10621281A RO83616B RO 83616 B RO83616 B RO 83616B RO 106212 A RO106212 A RO 106212A RO 10621281 A RO10621281 A RO 10621281A RO 83616 B RO83616 B RO 83616B
Authority
RO
Romania
Prior art keywords
azeotrope
acetonitrile
water
kgf
distillation zone
Prior art date
Application number
RO106212A
Other languages
English (en)
Other versions
RO83616A (ro
Inventor
Robert Dean Presson
Hsin Chih Wu
J. Sockell Edward
Original Assignee
The Standard Oil Co
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 The Standard Oil Co filed Critical The Standard Oil Co
Publication of RO83616A publication Critical patent/RO83616A/ro
Publication of RO83616B publication Critical patent/RO83616B/ro

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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Procedeul pentru recuperarea continua a acetonitrilului brut, conform inventiei, provenit din reactia de amoxidare catalitica a propilenei, continînd apa, acid cianhidric, substante grele, consta în aceea ca (1) se supune distilarii, într-o prima zona, la o presiune de aproximativ 1,12...7 kgf/cm2, pentru îndepartarea HCN si obtinerea unui prim azeotrop acetonitril-apa si un prim produs de blaz continînd apa, dupa care, (2) se supune azeotropul obtinut la o a doua zona de distilare, la o presiune de 0,2...0,3 kgf/cm2, pentru a separa un produs de blaz continînd apa si un al doilea azotrop cu un continut de acetonitril mai mare decît în primul azeotrop si apoi (3) distilerea celui de-al doilea azeotrop într-o a treia zona de distilare, la o presiune de 2,80...3,85 kgf/cm2, obtinîndu-se al treilea azeotrop continînd toata cantitatea de apa si din a doua zona de distilare si al treilea produs de blaz continînd acetonitril pur, care se recupereaza printr-un curent lateral, produsul de blaz recirculîndu-se în cea de a doua zona de distilare.
RO106212A 1981-01-02 1981-12-30 Procedeu pentru recuperarea continua a acetonitrilului RO83616B (ro)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/222,196 US4362603A (en) 1981-01-02 1981-01-02 Continuous acetonitrile recovery process

Publications (2)

Publication Number Publication Date
RO83616A RO83616A (ro) 1984-06-21
RO83616B true RO83616B (ro) 1984-08-30

Family

ID=22831273

Family Applications (1)

Application Number Title Priority Date Filing Date
RO106212A RO83616B (ro) 1981-01-02 1981-12-30 Procedeu pentru recuperarea continua a acetonitrilului

Country Status (10)

Country Link
US (1) US4362603A (ro)
EP (1) EP0055920B1 (ro)
KR (1) KR880000891B1 (ro)
AT (1) AT375066B (ro)
BR (1) BR8108531A (ro)
DE (1) DE3168979D1 (ro)
ES (1) ES8304928A1 (ro)
IN (1) IN159808B (ro)
MX (1) MX158763A (ro)
RO (1) RO83616B (ro)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3334321A1 (de) * 1983-09-22 1985-04-11 Lentia GmbH Chem. u. pharm. Erzeugnisse - Industriebedarf, 8000 München Verfahren zur reinigung von rohem acetonitril unter gewinnung von reiner blausaeure
AT379380B (de) * 1983-09-27 1985-12-27 Chemie Linz Ag Verfahren zur vernichtung von gebundener sowie gegebenenfalls auch freier blausaeure und acrylnitril in rohem acetonitril
DE69307701T2 (de) * 1992-05-21 1997-05-15 Cryodyne Tech Inc Verfahren zur reinigung von acetonitril
US5426208A (en) * 1992-05-21 1995-06-20 Cryodyne Technologies, Inc. Method of purification of acetonitrile
US5346595A (en) * 1993-02-23 1994-09-13 Alliedsignal Inc. Process for the purification of a pentafluoroethane azeotrope
TW402583B (en) * 1996-04-10 2000-08-21 Standard Oil Co Purification of acetonitrile by a distillative recovery/ion exchange resin treatment process
ES2166952T3 (es) * 1997-07-08 2002-05-01 Standard Oil Co Procedimiento para la purificacion de acetonitrilo.
CN1105099C (zh) * 1997-08-05 2003-04-09 标准石油公司 通过蒸馏回收/离子交换树脂处理来纯化乙腈的方法
ES2197578T3 (es) * 1998-02-23 2004-01-01 The Standard Oil Company Purificacion y recuperacion mejoradas de acetonitrilo.
US6843890B1 (en) * 1999-07-23 2005-01-18 The Standard Oil Company Purification and recovery of acetonitrile from waste solvent acetonitrile
US6395142B1 (en) 1999-10-14 2002-05-28 Chemcycles, Inc. Method and apparatus for purifying low grade acetonitrile and other constituents from hazardous waste
US6706474B1 (en) * 2000-06-27 2004-03-16 Board Of Trustees Of The University Of Illinois Nucleic acid enzyme biosensors for ions
CN1206208C (zh) * 2000-07-18 2005-06-15 标准石油公司 改进的乙腈精制和回收方法
US6890719B2 (en) * 2002-05-10 2005-05-10 The Board Of Trustess Of The University Of Illinois Fluorescence based biosensor
US7211674B2 (en) * 2003-01-07 2007-05-01 Ineos Usa Llc Process for the recovery of oxazole
WO2005044783A2 (en) * 2003-11-04 2005-05-19 Lonza Ag Acetonitrile recycling process
US7892734B2 (en) * 2005-08-11 2011-02-22 The Board Of Trustees Of The University Of Illinois Aptamer based colorimetric sensor systems
US7799554B2 (en) * 2006-03-16 2010-09-21 The Board Of Trustees Of The University Of Illinois Lateral flow devices
US8415461B2 (en) * 2007-01-19 2013-04-09 The Board Of Trustees Of The University Of Illinois Amphiphilic substances and functionalized lipid vesicles including the same
US8058415B2 (en) * 2007-04-24 2011-11-15 The Board Of Trustees Of The University Of Illinois Aptamer- and nucleic acid enzyme-based systems for simultaneous detection of multiple analytes
US8409800B2 (en) * 2007-07-16 2013-04-02 The Board Of Trustees Of The University Of Illinois Nucleic acid based fluorescent sensor for copper detection
US8568690B2 (en) * 2007-07-31 2013-10-29 The Board Of Trustees Of The University Of Illinois MRI contrast agents and high-throughput screening by MRI
WO2009045632A2 (en) 2007-08-10 2009-04-09 The Board Of Trustees Of The University Of Illinois Nucleic acid based fluorescent sensor for mercury detection
US20090090894A1 (en) * 2007-10-05 2009-04-09 Bin Wang Separation and extraction system
US20100105039A1 (en) * 2008-06-03 2010-04-29 Yi Lu Label-free colorimetric detection
US8062893B2 (en) 2008-10-10 2011-11-22 The Board Of Trustees Of The University Of Illinois Fluorescent sensor for mercury
US8815156B2 (en) 2010-07-19 2014-08-26 Andalyze, Inc. Sensor housing and reagent chemistry
CN103224456B (zh) * 2013-04-08 2015-04-22 江苏九天高科技股份有限公司 一种渗透汽化法精制乙腈的工艺及装置
CN109704990B (zh) * 2017-10-26 2022-02-01 中国石油化工股份有限公司 高纯乙腈的精制方法
CN109704991A (zh) * 2017-10-26 2019-05-03 中国石油化工股份有限公司 乙腈组合物
TWI716189B (zh) * 2018-11-13 2021-01-11 美商阿散德性能材料營運公司 從丙烯腈廢物料流中回收乙腈的方法
CN111574404B (zh) * 2020-06-02 2022-11-22 抚顺顺能化工有限公司 一种高纯乙腈的精制方法和精制装置
TW202210454A (zh) * 2020-09-03 2022-03-16 美商阿散德性能材料營運公司 回收乙腈的方法
EP4208439A1 (en) 2020-09-04 2023-07-12 Ascend Performance Materials Operations LLC Acetonitrile separation process
EP4291548A1 (en) 2021-02-11 2023-12-20 Ascend Performance Materials Operations LLC Acetonitrile separation process
WO2023122572A1 (en) 2021-12-20 2023-06-29 Ascend Performance Materials Operations Llc Acetonitrile separation process

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1323299A (fr) * 1961-05-27 1963-04-05 Chemie Linz Ag Procédé pour la récupération continue d'acrylonitrile et d'acétonitrile
CA669119A (en) * 1961-05-27 1963-08-20 Schonbeck Rupert Process for the continuous recovery of acrylonitrile and acetonitrile
US3451899A (en) * 1965-12-21 1969-06-24 Badger Co Purification of acetonitrile by an azeotropic distillation method
GB1239460A (ro) * 1967-11-08 1971-07-14
DE1920083A1 (de) * 1969-04-21 1970-01-29 Lentia Gmbh Verfahren zur kontinuierlichen Trennung von Acrylnitril und Acetonitril
BE791286A (fr) * 1971-11-17 1973-03-01 Snam Progetti Procede de purification d'acrylonitrile
DD106638A1 (ro) * 1973-04-02 1974-06-20
US4308108A (en) * 1979-03-28 1981-12-29 Asahi Kasei Kogyo Kabushiki Kaisha Process for purification of crude acetonitrile

Also Published As

Publication number Publication date
KR880000891B1 (ko) 1988-05-30
AT375066B (de) 1984-06-25
KR830007525A (ko) 1983-10-21
MX158763A (es) 1989-03-13
ATA582A (de) 1983-11-15
US4362603A (en) 1982-12-07
IN159808B (ro) 1987-06-06
EP0055920B1 (en) 1985-02-13
DE3168979D1 (en) 1985-03-28
ES508434A0 (es) 1983-03-16
RO83616A (ro) 1984-06-21
EP0055920A3 (en) 1982-09-22
ES8304928A1 (es) 1983-03-16
BR8108531A (pt) 1982-10-19
EP0055920A2 (en) 1982-07-14

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