JPS55118449A - Production of unsaturated nitrile - Google Patents
Production of unsaturated nitrileInfo
- Publication number
- JPS55118449A JPS55118449A JP2692679A JP2692679A JPS55118449A JP S55118449 A JPS55118449 A JP S55118449A JP 2692679 A JP2692679 A JP 2692679A JP 2692679 A JP2692679 A JP 2692679A JP S55118449 A JPS55118449 A JP S55118449A
- Authority
- JP
- Japan
- Prior art keywords
- production
- waste solution
- unsaturated nitrile
- methyl methacrylate
- hydrogen sulfate
- 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: The waste solution containing ammonium hydrogen sulfate, which is produced in the production of methyl methacrylate as a byproduct, is utilized as a neutralization agent in the production of unsaturated nitrile.
CONSTITUTION: In the production of unsaturated nitrile by ammonoxidation of olefin, the unreacted ammonia in the reaction mixture is neutralized with the waste solution containing ammonium hydrogen sulfate produced in the production of methyl methacrylate. The waste solution is, before used, adjusted to less than 100ppm of methyl methacrylate concentration and to less than 500ppm of metharylic acid concentration. The waste solution contains a large amount of ammonium hydrogen sulfate, which could not be recovered formerly and used to causes troubles when discarded.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2692679A JPS55118449A (en) | 1979-03-08 | 1979-03-08 | Production of unsaturated nitrile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2692679A JPS55118449A (en) | 1979-03-08 | 1979-03-08 | Production of unsaturated nitrile |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55118449A true JPS55118449A (en) | 1980-09-11 |
JPS6157826B2 JPS6157826B2 (en) | 1986-12-09 |
Family
ID=12206776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2692679A Granted JPS55118449A (en) | 1979-03-08 | 1979-03-08 | Production of unsaturated nitrile |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55118449A (en) |
-
1979
- 1979-03-08 JP JP2692679A patent/JPS55118449A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6157826B2 (en) | 1986-12-09 |
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