JPS55111432A - Preparation of formaldehyde - Google Patents
Preparation of formaldehydeInfo
- 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
Links
Landscapes
- 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
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)
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 |
-
1979
- 1979-02-19 JP JP1808879A patent/JPS55111432A/en active Pending
Patent Citations (2)
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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