JPS5648225A - Trichloride treating method of exhaust gas containing nitrogen - Google Patents
Trichloride treating method of exhaust gas containing nitrogenInfo
- Publication number
- JPS5648225A JPS5648225A JP12607979A JP12607979A JPS5648225A JP S5648225 A JPS5648225 A JP S5648225A JP 12607979 A JP12607979 A JP 12607979A JP 12607979 A JP12607979 A JP 12607979A JP S5648225 A JPS5648225 A JP S5648225A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- sulfite
- soln
- trichloride
- nitrogen trichloride
- 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
- Treating Waste Gases (AREA)
Abstract
PURPOSE: To convert nitrogen trichloride to ammonium chloride and improve the treating efficiency of exhaust gas by contacting an aqueous sulfite soln. having been controlled to the specific pH range with the exhaust gas.
CONSTITUTION: In treating an exhaust gas contg. nitrogen trichloride having been diluted with a large amount of air, alkali metal hydroxides such as sodium hydroxide or carbonate of alkali metals or alkaline earth metals and ammonia or the like are added to an aqueous sulfite soln. of sodium sulfite, ammonium sulfite, etc. dissolved with a small amount of lower alcohol to control its pH to a 5W10 range. When the exhaust gas is washed by spraying this soln., nitrogen trichloride is quickly converted to ammonium chloride. The reason for limiting the pH is: Above 10 pH, the exhaust gas becomes white fume and below 5 pH, sulfur dioxide is produced. Moreover, the reason for dissolving the alcohol is to suppress tha air oxidation of sulfite.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12607979A JPS5648225A (en) | 1979-09-27 | 1979-09-27 | Trichloride treating method of exhaust gas containing nitrogen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12607979A JPS5648225A (en) | 1979-09-27 | 1979-09-27 | Trichloride treating method of exhaust gas containing nitrogen |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5648225A true JPS5648225A (en) | 1981-05-01 |
JPS6119292B2 JPS6119292B2 (en) | 1986-05-16 |
Family
ID=14926084
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12607979A Granted JPS5648225A (en) | 1979-09-27 | 1979-09-27 | Trichloride treating method of exhaust gas containing nitrogen |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5648225A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6316767U (en) * | 1986-07-18 | 1988-02-03 | ||
JPS6363784U (en) * | 1986-10-15 | 1988-04-27 |
-
1979
- 1979-09-27 JP JP12607979A patent/JPS5648225A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6119292B2 (en) | 1986-05-16 |
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