JPS55111432A - Preparation of formaldehyde - Google Patents

Preparation of formaldehyde

Info

Publication number
JPS55111432A
JPS55111432A JP1808879A JP1808879A JPS55111432A JP S55111432 A JPS55111432 A JP S55111432A JP 1808879 A JP1808879 A JP 1808879A JP 1808879 A JP1808879 A JP 1808879A JP S55111432 A JPS55111432 A JP S55111432A
Authority
JP
Japan
Prior art keywords
gas
formaldehyde
methanol
recycled
burnt
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
JP1808879A
Other languages
Japanese (ja)
Inventor
Yoshiaki Toyoda
Yoshihiro Ikeda
Tadaharu Hase
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP1808879A priority Critical patent/JPS55111432A/en
Publication of JPS55111432A publication Critical patent/JPS55111432A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE: To prepare low-methanol content, high concentration formaldehyde from methanol using a metallic catalyst, safely, saving the resources and energy, by recycling the burnt exhaust gas as an inert gas.
CONSTITUTION: In the preparation of formaldehyde from a mixed gas consisting of methanol vapor and air, and optionally steam, using a metallic catalyst, the exhaust gas from the reaction system is burnt, and cooled to a proper temperature to recover the heat. A part of the treated gas is recycled to the formaldehyde producing process. The recycled gas is pref. 0.75W1.50 parts by volume based on 1 part of the methanol vapor.
EFFECT: The partial pressure of hydrogen gas in the gas fed to the reactor can be reduced, which contributes to the safety of the reaction. The combustion heat can be effectively utilized.
COPYRIGHT: (C)1980,JPO&Japio
JP1808879A 1979-02-19 1979-02-19 Preparation of formaldehyde Pending JPS55111432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1808879A JPS55111432A (en) 1979-02-19 1979-02-19 Preparation of formaldehyde

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1808879A JPS55111432A (en) 1979-02-19 1979-02-19 Preparation of formaldehyde

Publications (1)

Publication Number Publication Date
JPS55111432A true JPS55111432A (en) 1980-08-28

Family

ID=11961881

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1808879A Pending JPS55111432A (en) 1979-02-19 1979-02-19 Preparation of formaldehyde

Country Status (1)

Country Link
JP (1) JPS55111432A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028937A (en) * 1973-07-16 1975-03-24
JPS52153870A (en) * 1976-06-16 1977-12-21 Osaka Sanso Kougiyou Kk Method of treating exhaust gases by catalytic oxidation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028937A (en) * 1973-07-16 1975-03-24
JPS52153870A (en) * 1976-06-16 1977-12-21 Osaka Sanso Kougiyou Kk Method of treating exhaust gases by catalytic oxidation

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