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JPS56123926A - Purification of methanol - Google Patents

Purification of methanol

Info

Publication number
JPS56123926A
JPS56123926A JP2738780A JP2738780A JPS56123926A JP S56123926 A JPS56123926 A JP S56123926A JP 2738780 A JP2738780 A JP 2738780A JP 2738780 A JP2738780 A JP 2738780A JP S56123926 A JPS56123926 A JP S56123926A
Authority
JP
Japan
Prior art keywords
column
methanol
water
fractionating column
fractionating
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
JP2738780A
Other languages
Japanese (ja)
Other versions
JPS6141497B2 (en
Inventor
Isao Makino
Kenjiro Miyashita
Kadaba.Ramasuwamii.Umeshiyu
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.)
Toyo Engineering Corp
Original Assignee
Toyo Engineering Corp
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 Toyo Engineering Corp filed Critical Toyo Engineering Corp
Priority to JP2738780A priority Critical patent/JPS56123926A/en
Publication of JPS56123926A publication Critical patent/JPS56123926A/en
Publication of JPS6141497B2 publication Critical patent/JPS6141497B2/ja
Granted legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To purify methanol, by distilling crude methanol with the first fractionating column having higher column top pressure than the second fractionating column, thereby separating the crude alcohol into three parts comprising the high purity methanol obtained from the top of the column, water discharged from the bottom of the column, and the side stream composed of methanol and water, and separating the side stream into its components by the second fractionating column.
CONSTITUTION: Volatile impurities are removed from impure methanol obtained by methanol synthesis, and the produced crude methanol is fed to the first fractionating column B having higher column top pressure than the second fractionating column C, and separated into three parts comprising the high purity methanol obtained from the top of the column, the bottom stream composed mainly of water, and the side stream composed mainly of methanol and water. The side stream is fed to the second fractionating column C, and separated to the high purity methanol from the column top and a mixture composed mainly or methanol, water, and ethanol obtained from the column bottom. The removal of the volatile impurities from the impure methanol is carried out with a preliminary distillation column A. The vapor of the high purity methanol obtained from the top of the first fractionating column B is utilized for the heating of the second fractionating column and evaporation of the bottom of the prliminary distillation column A.
COPYRIGHT: (C)1981,JPO&Japio
JP2738780A 1980-03-06 1980-03-06 Purification of methanol Granted JPS56123926A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2738780A JPS56123926A (en) 1980-03-06 1980-03-06 Purification of methanol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2738780A JPS56123926A (en) 1980-03-06 1980-03-06 Purification of methanol

Publications (2)

Publication Number Publication Date
JPS56123926A true JPS56123926A (en) 1981-09-29
JPS6141497B2 JPS6141497B2 (en) 1986-09-16

Family

ID=12219637

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2738780A Granted JPS56123926A (en) 1980-03-06 1980-03-06 Purification of methanol

Country Status (1)

Country Link
JP (1) JPS56123926A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4592806A (en) * 1983-03-29 1986-06-03 Uhde Gmbh Process for the production of grade AA methanol
JPS6229539A (en) * 1985-07-31 1987-02-07 Mitsubishi Heavy Ind Ltd Pressurized distillation of methanol plant
JPS6229540A (en) * 1985-07-31 1987-02-07 Mitsubishi Heavy Ind Ltd Pressurized distillation of methanol plant
KR100464165B1 (en) * 2002-05-02 2005-01-03 재원산업 주식회사 refining method of methanol

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4592806A (en) * 1983-03-29 1986-06-03 Uhde Gmbh Process for the production of grade AA methanol
JPS6229539A (en) * 1985-07-31 1987-02-07 Mitsubishi Heavy Ind Ltd Pressurized distillation of methanol plant
JPS6229540A (en) * 1985-07-31 1987-02-07 Mitsubishi Heavy Ind Ltd Pressurized distillation of methanol plant
KR100464165B1 (en) * 2002-05-02 2005-01-03 재원산업 주식회사 refining method of methanol

Also Published As

Publication number Publication date
JPS6141497B2 (en) 1986-09-16

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