JPS57165338A - Recovering method of acetone - Google Patents
Recovering method of acetoneInfo
- Publication number
- JPS57165338A JPS57165338A JP5040181A JP5040181A JPS57165338A JP S57165338 A JPS57165338 A JP S57165338A JP 5040181 A JP5040181 A JP 5040181A JP 5040181 A JP5040181 A JP 5040181A JP S57165338 A JPS57165338 A JP S57165338A
- Authority
- JP
- Japan
- Prior art keywords
- acetone
- recover
- methanol
- fed
- recovering
- 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 recover acetone effectively while recovering methanol without containing sulfur dioxide effectively, by distilling a mixture containing the acetone formed as a by-product in the synthesis of methyl methacrylate from acetone cyanhydrin under alkaline conditions.
CONSTITUTION: A low-boiling mixture, containing acetone, dimethyl ether, methaol, water, methyl acetate, etc., and formed as a by-product in synthesizing methyl methacrylate from acetone cyanhydrin, sulfuric acid and methanol is mixed with an alkali in an equivalent amount of more necessary for neutralizing the acetic acid generated in the hydrolysis of acidic substances and the methyl acetate contained therein, heated and allowed to stand if necessary and then fed to an acetone recovering distillation column, etc. to recover the acetone. In this case, water for extracting methanol is usually fed from the top of the acetone recovering distillation column, and heating steam is fed from the bottom to recover the acetone from the top and substances containing the methaol from the bottom thereof.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5040181A JPS57165338A (en) | 1981-04-03 | 1981-04-03 | Recovering method of acetone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5040181A JPS57165338A (en) | 1981-04-03 | 1981-04-03 | Recovering method of acetone |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57165338A true JPS57165338A (en) | 1982-10-12 |
JPH0150687B2 JPH0150687B2 (en) | 1989-10-31 |
Family
ID=12857840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5040181A Granted JPS57165338A (en) | 1981-04-03 | 1981-04-03 | Recovering method of acetone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57165338A (en) |
-
1981
- 1981-04-03 JP JP5040181A patent/JPS57165338A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0150687B2 (en) | 1989-10-31 |
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