JPS56142877A - Manufacture of perfluoro (3-methyltetrahydrofuran) - Google Patents

Manufacture of perfluoro (3-methyltetrahydrofuran)

Info

Publication number
JPS56142877A
JPS56142877A JP10083680A JP10083680A JPS56142877A JP S56142877 A JPS56142877 A JP S56142877A JP 10083680 A JP10083680 A JP 10083680A JP 10083680 A JP10083680 A JP 10083680A JP S56142877 A JPS56142877 A JP S56142877A
Authority
JP
Japan
Prior art keywords
acid
perfluoro
gas
methyltetrahydrofuran
cof
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
JP10083680A
Other languages
Japanese (ja)
Inventor
Takashi Abe
Toshiharu Nagase
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP10083680A priority Critical patent/JPS56142877A/en
Publication of JPS56142877A publication Critical patent/JPS56142877A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

PURPOSE: To manufacture perfluoro (3-methyltetrahydrofuran) with a good yield by electrolytic fluorination of pivalic acid, 2-methylbutyric acid, or their derivative in anhydrous hydrofluoric acid.
CONSTITUTION: Pivalic acid, 2-methylbutyric acid, or their derivative (e.g., an acid halide, ester, amide, etc.) is dissolved in anhydrous hydrofluoric acid, and then the solution is subjected to an electrolytic fluorination, whereby perfluoro (3-m-thyltetrahydrofuran) is formed in a gaseous form, together with perfluoro (2-methylbutyryl fluoride), fluorocarbons, OF2, and COF2. The gas so formed is passed through an iron tube packed with NaF pellets to remove the accompanying HF, passed through gas-washing bottles to remove OF2 and COF2, and then cooled by liquefied nitrogen and collected. The collected substance is refined by distillation and further separated and purified by a preparative gas chromatography.
COPYRIGHT: (C)1981,JPO&Japio
JP10083680A 1980-07-23 1980-07-23 Manufacture of perfluoro (3-methyltetrahydrofuran) Pending JPS56142877A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10083680A JPS56142877A (en) 1980-07-23 1980-07-23 Manufacture of perfluoro (3-methyltetrahydrofuran)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10083680A JPS56142877A (en) 1980-07-23 1980-07-23 Manufacture of perfluoro (3-methyltetrahydrofuran)

Publications (1)

Publication Number Publication Date
JPS56142877A true JPS56142877A (en) 1981-11-07

Family

ID=14284393

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10083680A Pending JPS56142877A (en) 1980-07-23 1980-07-23 Manufacture of perfluoro (3-methyltetrahydrofuran)

Country Status (1)

Country Link
JP (1) JPS56142877A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112226783A (en) * 2020-10-27 2021-01-15 浙江诺亚氟化工有限公司 Electrochemical combined fluorination process
EP4032533A1 (en) 2012-07-10 2022-07-27 The Regents of The University of California Methods of inducing anesthesia

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53124259A (en) * 1977-04-06 1978-10-30 Agency Of Ind Science & Technol Preparation of perfluoro (3-methyltetrahydrofran)

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53124259A (en) * 1977-04-06 1978-10-30 Agency Of Ind Science & Technol Preparation of perfluoro (3-methyltetrahydrofran)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4032533A1 (en) 2012-07-10 2022-07-27 The Regents of The University of California Methods of inducing anesthesia
CN112226783A (en) * 2020-10-27 2021-01-15 浙江诺亚氟化工有限公司 Electrochemical combined fluorination process

Similar Documents

Publication Publication Date Title
MY116614A (en) Process an apparatus for producing nitrogen from air.
MY106547A (en) Process for the separation of 1,1,1,2-tetrafluoroethane from mixtures thereof with hydrogen fluoride and/or 1-chloro-2,2-difluoroethylene
GB1285599A (en) Separation of cyanogen chloride and hydrogen chloride
HK1053459A1 (en) Process for producing fluorinated ester compound
GB1450843A (en) Method for recovering chlorine from chlorine-containing gaseous mixtures containing carbon dioxide as one component
HUT45916A (en) Cryogenic method for removing acid gases from gas mixtures by using of solvents
WO2009118369A1 (en) Process for the removal of hf from hf containing organic carbonates
JPS56142877A (en) Manufacture of perfluoro (3-methyltetrahydrofuran)
GB745406A (en) Improvements in or relating to separation of carbon dioxide from ammonia
JPS5692228A (en) Preparation of high-purity alkylene glycol
GB2219292B (en) Process of preparing 1,2,2,2-tetrafluoroethyl-difluoromethyl ether
JPS55133372A (en) Method of recovering anhydrous maleic acid from gas containing anhydrous maleic acid
JPS53124259A (en) Preparation of perfluoro (3-methyltetrahydrofran)
JPS5738307A (en) Manufacture of sulfur tetrafluoride
US5557020A (en) High-purity perfluoro-4-methyl-2-pentene and its preparation and use
Abe et al. Synthesis of perfluorobicyclic ethers [2]. The electrochemical fluorination of α-cyclohexenyl-substituted carboxylic acid derivatives
EP0081053A1 (en) Optically active fluoroalkoxy-carboxylic acid or its derivative
JP3030660B2 (en) Method for collecting perfluoroalkylsulfonic acid fluoride
ES8301831A1 (en) "Process for preparing hydrofluoric acid from fluorine-containing organic compounds"
GB1263505A (en) Process for the production of substantially impurity-free high percent hydrofluoric acid
JPS55164644A (en) Preparation of difluoroiodoacetylfluoride
JPS57203055A (en) Preparation of chlorosulfonic acid
JPS5626704A (en) Manufacture of sulfur hexafluoride
JPS5520201A (en) Chlorine gas purifying method
TH13974EX (en) Process of making 1,1,1,2-pure tetrafluoroethane