WO2014034500A1 - Procédé de purification de l'acétonitrile - Google Patents

Procédé de purification de l'acétonitrile Download PDF

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Publication number
WO2014034500A1
WO2014034500A1 PCT/JP2013/072323 JP2013072323W WO2014034500A1 WO 2014034500 A1 WO2014034500 A1 WO 2014034500A1 JP 2013072323 W JP2013072323 W JP 2013072323W WO 2014034500 A1 WO2014034500 A1 WO 2014034500A1
Authority
WO
WIPO (PCT)
Prior art keywords
acetonitrile
tower
line
reaction
mass
Prior art date
Application number
PCT/JP2013/072323
Other languages
English (en)
Japanese (ja)
Inventor
和彦 佐野
孝真 伊東
Original Assignee
旭化成ケミカルズ株式会社
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 旭化成ケミカルズ株式会社 filed Critical 旭化成ケミカルズ株式会社
Priority to IN1264DEN2015 priority Critical patent/IN2015DN01264A/en
Priority to JP2014532954A priority patent/JP6038157B2/ja
Priority to SG11201501216XA priority patent/SG11201501216XA/en
Priority to CN201380045429.6A priority patent/CN104603101B/zh
Priority to KR1020157002483A priority patent/KR101779678B1/ko
Publication of WO2014034500A1 publication Critical patent/WO2014034500A1/fr
Priority to SA515360073A priority patent/SA515360073B1/ar

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    • 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
    • C07C253/00—Preparation of carboxylic acid nitriles
    • C07C253/24—Preparation of carboxylic acid nitriles by ammoxidation of hydrocarbons or substituted hydrocarbons
    • C07C253/26—Preparation of carboxylic acid nitriles by ammoxidation of hydrocarbons or substituted hydrocarbons containing carbon-to-carbon multiple bonds, e.g. unsaturated aldehydes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C07C255/01—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms
    • C07C255/02—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms of an acyclic and saturated carbon skeleton
    • C07C255/03—Mononitriles

Definitions

  • Distillation was performed by flowing 0.4 t / h of 0.4 MPaG of steam through the reboiler of the product tower 6.
  • the tower top pressure and the tower bottom pressure were respectively 0.1100 MPa and 0.1112 MPa in absolute pressure, and the tower top temperature and the tower bottom temperature were 81.2 ° C. and 82.2 ° C., respectively.
  • a 70 kg / h liquid containing propionitrile and a high boiling point substance was extracted from the line 20 and treated with waste water.
  • Steam distilled from the top of the column was condensed by a condenser and allowed to flow down to a reflux drum. Water at 28 ° C. was used as the condenser refrigerant.
  • the condensate 4380 kg / h in the reflux drum was refluxed to the product column 6 using a pump, and 1486 kg / h was withdrawn from the line 21 to obtain purified high purity acetonitrile.
  • the acetonitrile recovery rate can be improved without affecting the quality of the high-purity acetonitrile. It can be seen that it can be improved. Furthermore, it can be seen that the amount of alkali used can be reduced by using the bottom liquid of the dehydration tower 4 as the alkali source of the reaction tank 2.
  • the method for purifying acetonitrile of the present invention is a process in which the amount of wastewater treated and the amount of chemical used for purification are small, and the purification equipment and process are simple.
  • high-purity acetonitrile that can be used for applications such as pharmaceutical intermediate synthesis / purification solvents, DNA synthesis / purification solvents, organic EL material synthesis solvents, and electronic component cleaning solvents is prepared. It can be purified efficiently.

Abstract

La présente invention concerne un procédé de purification de l'acétonitrile comprenant : une étape consistant à obtenir un liquide réactionnel par introduction d'un alkali et d'acétonitrile brut, ayant été obtenu par une réaction d'ammoxydation, dans un réacteur ; une étape consistant à obtenir un distillat liquide par soumission du liquide réactionnel à une distillation ; et une étape consistant à introduire de l'acétamide et/ou de l'acide acétique dans le réacteur.
PCT/JP2013/072323 2012-08-31 2013-08-21 Procédé de purification de l'acétonitrile WO2014034500A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
IN1264DEN2015 IN2015DN01264A (fr) 2012-08-31 2013-08-21
JP2014532954A JP6038157B2 (ja) 2012-08-31 2013-08-21 アセトニトリルの精製方法
SG11201501216XA SG11201501216XA (en) 2012-08-31 2013-08-21 Method for purifying acetonitrile
CN201380045429.6A CN104603101B (zh) 2012-08-31 2013-08-21 乙腈的纯化方法
KR1020157002483A KR101779678B1 (ko) 2012-08-31 2013-08-21 아세토니트릴의 정제 방법
SA515360073A SA515360073B1 (ar) 2012-08-31 2015-02-26 طريقة لتنقية أسيتونيتريل

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-192215 2012-08-31
JP2012192215 2012-08-31

Publications (1)

Publication Number Publication Date
WO2014034500A1 true WO2014034500A1 (fr) 2014-03-06

Family

ID=50183315

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/072323 WO2014034500A1 (fr) 2012-08-31 2013-08-21 Procédé de purification de l'acétonitrile

Country Status (8)

Country Link
JP (1) JP6038157B2 (fr)
KR (1) KR101779678B1 (fr)
CN (1) CN104603101B (fr)
IN (1) IN2015DN01264A (fr)
SA (1) SA515360073B1 (fr)
SG (1) SG11201501216XA (fr)
TW (1) TWI488834B (fr)
WO (1) WO2014034500A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104058994A (zh) * 2014-07-02 2014-09-24 中国计量科学研究院 高纯乙腈及其制备方法和装置
CN104193651A (zh) * 2014-08-15 2014-12-10 江苏九天高科技股份有限公司 一种用于醋酸氨化合成乙腈的精制方法及装置
CN106316882A (zh) * 2016-07-27 2017-01-11 中国计量科学研究院 一种电子级乙腈的制备方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102256553B1 (ko) * 2015-08-26 2021-05-25 차이나 페트로리움 앤드 케미컬 코포레이션 아세토니트릴의 정제 방법과 그 시스템 및 산성 폐수의 재활용 방법
CN109374795A (zh) * 2018-09-20 2019-02-22 福建中医药大学 一种降低乙腈蒸发光散射检测器噪音的方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4881816A (fr) * 1972-02-12 1973-11-01
JPS55129257A (en) * 1979-03-28 1980-10-06 Asahi Chem Ind Co Ltd Purification of acetonitrile containing hydrogen cyanide
JPS55153757A (en) * 1979-05-18 1980-11-29 Asahi Chem Ind Co Ltd Purification of crude acetonitrile by dehydration
GB2249308A (en) * 1990-10-30 1992-05-06 G K Analytical Sciences Limite Purification of acetonitrile
JP2000128847A (ja) * 1998-10-20 2000-05-09 Asahi Chem Ind Co Ltd アルカリの再使用方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4308108A (en) * 1979-03-28 1981-12-29 Asahi Kasei Kogyo Kabushiki Kaisha Process for purification of crude acetonitrile
CN1102575C (zh) * 2000-06-15 2003-03-05 中国石油化工集团公司 高纯乙腈精制中微量氢氰酸脱除方法
CN101171233B (zh) * 2005-05-10 2011-04-20 旭化成化学株式会社 高纯度乙腈及其制造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4881816A (fr) * 1972-02-12 1973-11-01
JPS55129257A (en) * 1979-03-28 1980-10-06 Asahi Chem Ind Co Ltd Purification of acetonitrile containing hydrogen cyanide
JPS55153757A (en) * 1979-05-18 1980-11-29 Asahi Chem Ind Co Ltd Purification of crude acetonitrile by dehydration
GB2249308A (en) * 1990-10-30 1992-05-06 G K Analytical Sciences Limite Purification of acetonitrile
JP2000128847A (ja) * 1998-10-20 2000-05-09 Asahi Chem Ind Co Ltd アルカリの再使用方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104058994A (zh) * 2014-07-02 2014-09-24 中国计量科学研究院 高纯乙腈及其制备方法和装置
CN104058994B (zh) * 2014-07-02 2016-07-06 中国计量科学研究院 高纯乙腈及其制备方法和装置
CN104193651A (zh) * 2014-08-15 2014-12-10 江苏九天高科技股份有限公司 一种用于醋酸氨化合成乙腈的精制方法及装置
CN106316882A (zh) * 2016-07-27 2017-01-11 中国计量科学研究院 一种电子级乙腈的制备方法
CN106316882B (zh) * 2016-07-27 2018-01-30 中国计量科学研究院 一种电子级乙腈的制备方法

Also Published As

Publication number Publication date
KR101779678B1 (ko) 2017-09-18
IN2015DN01264A (fr) 2015-07-03
JP6038157B2 (ja) 2016-12-07
SG11201501216XA (en) 2015-05-28
TW201414706A (zh) 2014-04-16
TWI488834B (zh) 2015-06-21
JPWO2014034500A1 (ja) 2016-08-08
SA515360073B1 (ar) 2016-02-13
CN104603101B (zh) 2017-03-01
KR20150027281A (ko) 2015-03-11
CN104603101A (zh) 2015-05-06

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