JPS5581828A - Removal of by-produced aromatic hydrocarbons - Google Patents
Removal of by-produced aromatic hydrocarbonsInfo
- Publication number
- JPS5581828A JPS5581828A JP15435978A JP15435978A JPS5581828A JP S5581828 A JPS5581828 A JP S5581828A JP 15435978 A JP15435978 A JP 15435978A JP 15435978 A JP15435978 A JP 15435978A JP S5581828 A JPS5581828 A JP S5581828A
- Authority
- JP
- Japan
- Prior art keywords
- methanol
- aromatic hydrocarbons
- phenols
- produced aromatic
- products
- 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
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To remove by-produced aromatic hydrocarbons exclusively and efficiently, from methanol recovered from methylation products obtained by the vapor-phase catalytic reaction of phenols and methanol, by controlling the cooling temperature of gas products within a specific range.
CONSTITUTION: In the preparation of methylated phenols by the vapor-phase catalytic reaction of phenols and methanol, gas products separated from reaction products are cooled to -10W+15°C, pref. -5W+10°C, and discharged, whereby trace amounts of by-produced aromatic hydrocarbons, such as benzene, toluene and xylene, can be subtantially removed out of the system. Unreacted methanol, which is recovered in this way, can be recycled and reused without troubles.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15435978A JPS5581828A (en) | 1978-12-14 | 1978-12-14 | Removal of by-produced aromatic hydrocarbons |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15435978A JPS5581828A (en) | 1978-12-14 | 1978-12-14 | Removal of by-produced aromatic hydrocarbons |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5581828A true JPS5581828A (en) | 1980-06-20 |
JPS6218533B2 JPS6218533B2 (en) | 1987-04-23 |
Family
ID=15582424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15435978A Granted JPS5581828A (en) | 1978-12-14 | 1978-12-14 | Removal of by-produced aromatic hydrocarbons |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5581828A (en) |
-
1978
- 1978-12-14 JP JP15435978A patent/JPS5581828A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6218533B2 (en) | 1987-04-23 |
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