JPS559011A - Preparation of isobutylene from aqueous solution of tert- butanol - Google Patents

Preparation of isobutylene from aqueous solution of tert- butanol

Info

Publication number
JPS559011A
JPS559011A JP8095478A JP8095478A JPS559011A JP S559011 A JPS559011 A JP S559011A JP 8095478 A JP8095478 A JP 8095478A JP 8095478 A JP8095478 A JP 8095478A JP S559011 A JPS559011 A JP S559011A
Authority
JP
Japan
Prior art keywords
butanol
line
tert
aqueous solution
isobutylene
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
JP8095478A
Other languages
Japanese (ja)
Other versions
JPS6123771B2 (en
Inventor
Atsushi Aoshima
Toshiaki Murofushi
Ryoichi Mitsui
Nobuhiro Tamura
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.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi 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 Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP8095478A priority Critical patent/JPS559011A/en
Publication of JPS559011A publication Critical patent/JPS559011A/en
Publication of JPS6123771B2 publication Critical patent/JPS6123771B2/ja
Granted 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
    • Y02P20/10—Process efficiency

Abstract

PURPOSE: To obtain isobutylene in the liquid phase at an increased dehydration rate, by heating an aqueous solution of tert-butanol containing a hydration catalyst in the presence of an acidic substance having a dehydrating activity at a plate above the feed one of the butanol of a distillation column under reflux.
CONSTITUTION: An aqueous solution containing a non-volatile soluble hydration catalyst and tert-butanol is fed from the line 2 of the distillation column / comprising a rectifying section above the line 2. The column / is heated by the reboiler 7 so that the top temperature may be 70°C or above and the butanol is dehydrated at or below the feed plate. Part of the bottoms containing the catalyst and butanol in a low concentration are fed from the line 6 near the top to make the dehydration proceed even above the line 2. The top vapor is condensed in the condenser 3 to remove the uncondenable isobutylene 5 from the system.
EFFECT: Compact devices and saving energy.
COPYRIGHT: (C)1980,JPO&Japio
JP8095478A 1978-07-05 1978-07-05 Preparation of isobutylene from aqueous solution of tert- butanol Granted JPS559011A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8095478A JPS559011A (en) 1978-07-05 1978-07-05 Preparation of isobutylene from aqueous solution of tert- butanol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8095478A JPS559011A (en) 1978-07-05 1978-07-05 Preparation of isobutylene from aqueous solution of tert- butanol

Publications (2)

Publication Number Publication Date
JPS559011A true JPS559011A (en) 1980-01-22
JPS6123771B2 JPS6123771B2 (en) 1986-06-07

Family

ID=13732891

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8095478A Granted JPS559011A (en) 1978-07-05 1978-07-05 Preparation of isobutylene from aqueous solution of tert- butanol

Country Status (1)

Country Link
JP (1) JPS559011A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5767619A (en) * 1980-10-15 1982-04-24 Dainippon Ink & Chem Inc Resin for covering sand for castings
JPS6126A (en) * 1984-06-08 1986-01-06 Mitsui Petrochem Ind Ltd Production of tertiary olefin
JP2013522288A (en) * 2010-04-26 2013-06-13 ソンウォン インダストリアル カンパニー リミテッド Method for producing alkene compound

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5767619A (en) * 1980-10-15 1982-04-24 Dainippon Ink & Chem Inc Resin for covering sand for castings
JPS6330922B2 (en) * 1980-10-15 1988-06-21 Dainippon Ink & Chemicals
JPS6126A (en) * 1984-06-08 1986-01-06 Mitsui Petrochem Ind Ltd Production of tertiary olefin
JPH0417166B2 (en) * 1984-06-08 1992-03-25 Mitsui Petrochemical Ind
JP2013522288A (en) * 2010-04-26 2013-06-13 ソンウォン インダストリアル カンパニー リミテッド Method for producing alkene compound
US8912379B2 (en) 2010-04-26 2014-12-16 Songwon Industrial Co., Ltd. Method of preparing alkene compound

Also Published As

Publication number Publication date
JPS6123771B2 (en) 1986-06-07

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