JPS5217407A - Process for purification of formaldehyde - Google Patents

Process for purification of formaldehyde

Info

Publication number
JPS5217407A
JPS5217407A JP9079175A JP9079175A JPS5217407A JP S5217407 A JPS5217407 A JP S5217407A JP 9079175 A JP9079175 A JP 9079175A JP 9079175 A JP9079175 A JP 9079175A JP S5217407 A JPS5217407 A JP S5217407A
Authority
JP
Japan
Prior art keywords
formaldehyde
purification
cooler
passing
prepared
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
JP9079175A
Other languages
Japanese (ja)
Inventor
Harutaka Kimura
Seiichi Nozawa
Naohiro Takeda
Masaharu Shikama
Minoru Kitsunai
Makoto Shida
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.)
Mitsubishi Chemical Corp
Original Assignee
Mitsubishi Chemical Industries 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 Mitsubishi Chemical Industries Ltd filed Critical Mitsubishi Chemical Industries Ltd
Priority to JP9079175A priority Critical patent/JPS5217407A/en
Publication of JPS5217407A publication Critical patent/JPS5217407A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE: High purity formaldehyde, containing a definite amount of water content, is prepared by mixing crude formaldehyde with an inert gas, and by passing the mixed gas through a partial condenser at 90-110°C, and then through a cooler at -20 - 400°C.
COPYRIGHT: (C)1977,JPO&Japio
JP9079175A 1975-07-25 1975-07-25 Process for purification of formaldehyde Pending JPS5217407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9079175A JPS5217407A (en) 1975-07-25 1975-07-25 Process for purification of formaldehyde

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9079175A JPS5217407A (en) 1975-07-25 1975-07-25 Process for purification of formaldehyde

Publications (1)

Publication Number Publication Date
JPS5217407A true JPS5217407A (en) 1977-02-09

Family

ID=14008400

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9079175A Pending JPS5217407A (en) 1975-07-25 1975-07-25 Process for purification of formaldehyde

Country Status (1)

Country Link
JP (1) JPS5217407A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52151109A (en) * 1976-06-07 1977-12-15 Petoroobitsuchi Guriish Borisu Method of purifying gaseous formaldehyde
JPS53115322U (en) * 1977-02-21 1978-09-13

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52151109A (en) * 1976-06-07 1977-12-15 Petoroobitsuchi Guriish Borisu Method of purifying gaseous formaldehyde
JPS53115322U (en) * 1977-02-21 1978-09-13

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