JPS5781436A - Purification of ethyl acetate - Google Patents

Purification of ethyl acetate

Info

Publication number
JPS5781436A
JPS5781436A JP55156948A JP15694880A JPS5781436A JP S5781436 A JPS5781436 A JP S5781436A JP 55156948 A JP55156948 A JP 55156948A JP 15694880 A JP15694880 A JP 15694880A JP S5781436 A JPS5781436 A JP S5781436A
Authority
JP
Japan
Prior art keywords
ethyl acetate
impurity
distillation
catalyst
test
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
JP55156948A
Other languages
Japanese (ja)
Inventor
Nobuhiro Watanabe
Sakae Yamada
Hatsunori Ishimaru
Koji Shimizu
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.)
TOKUYAMA SEKIYU KAGAKU KK
Original Assignee
TOKUYAMA SEKIYU KAGAKU KK
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 TOKUYAMA SEKIYU KAGAKU KK filed Critical TOKUYAMA SEKIYU KAGAKU KK
Priority to JP55156948A priority Critical patent/JPS5781436A/en
Publication of JPS5781436A publication Critical patent/JPS5781436A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PURPOSE: To obtain high-purity ethyl acetate economically, useful for film production, etc., standing the standard of color test of sulfuric acid and polyurethane yellowing test, by subjecting ethyl acetate containing a very small amount of impurity with a catalyst to contact reaction, followed by low-boiling separating distillation.
CONSTITUTION: Ethyl acetate containing a very small amount of impurity which is slightly separated by a common distillation means, being colored by the above-mentioned two test is subjected to contact reaction with a catalyst, preferably acid clay, activated clay, bentonite, silica-alumina, or zeolite in the presence of preferably 200W1,000ppm water based on ethyl acetate to be treated at 20W60°C, to convert the impurity into an easily separable substance. After that, the reaction product is subjected to low-boiling separating distillation, to give ethyl acetate having a purity of ≥99.99% with no above-mentioned impurity economically not requiring large-scale change of device and the use of expensive chemicals, catalyst, etc., not causing the occurrence of waste water and the loss of purification through distillation.
COPYRIGHT: (C)1982,JPO&Japio
JP55156948A 1980-11-10 1980-11-10 Purification of ethyl acetate Pending JPS5781436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55156948A JPS5781436A (en) 1980-11-10 1980-11-10 Purification of ethyl acetate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55156948A JPS5781436A (en) 1980-11-10 1980-11-10 Purification of ethyl acetate

Publications (1)

Publication Number Publication Date
JPS5781436A true JPS5781436A (en) 1982-05-21

Family

ID=15638832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55156948A Pending JPS5781436A (en) 1980-11-10 1980-11-10 Purification of ethyl acetate

Country Status (1)

Country Link
JP (1) JPS5781436A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62153246A (en) * 1985-12-26 1987-07-08 Kyowa Yuka Kk Purification of ethyl acetate
US5371279A (en) * 1994-03-21 1994-12-06 Occidental Chemical Corporation Acetic acid removal from liquid ether acetates
CN1076337C (en) * 1996-12-18 2001-12-19 中国科学院成都有机化学研究所 Constant boiling agent for separating ethyl acetate and constant boiling distillation process
CN102417450A (en) * 2011-12-26 2012-04-18 天津市康科德科技有限公司 Method for purifying chromatographic grade butyl acetate
CN102731298A (en) * 2012-07-20 2012-10-17 太仓沪试试剂有限公司 Method for purifying ethyl acetate

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62153246A (en) * 1985-12-26 1987-07-08 Kyowa Yuka Kk Purification of ethyl acetate
JPH0572899B2 (en) * 1985-12-26 1993-10-13 Kyowa Yuka Kk
US5371279A (en) * 1994-03-21 1994-12-06 Occidental Chemical Corporation Acetic acid removal from liquid ether acetates
CN1076337C (en) * 1996-12-18 2001-12-19 中国科学院成都有机化学研究所 Constant boiling agent for separating ethyl acetate and constant boiling distillation process
CN102417450A (en) * 2011-12-26 2012-04-18 天津市康科德科技有限公司 Method for purifying chromatographic grade butyl acetate
CN102731298A (en) * 2012-07-20 2012-10-17 太仓沪试试剂有限公司 Method for purifying ethyl acetate

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