JPS5689822A - Purification of waste gas containing hydrochloric acid - Google Patents
Purification of waste gas containing hydrochloric acidInfo
- Publication number
- JPS5689822A JPS5689822A JP16857779A JP16857779A JPS5689822A JP S5689822 A JPS5689822 A JP S5689822A JP 16857779 A JP16857779 A JP 16857779A JP 16857779 A JP16857779 A JP 16857779A JP S5689822 A JPS5689822 A JP S5689822A
- Authority
- JP
- Japan
- Prior art keywords
- waste gas
- hydrochloric acid
- slaked lime
- gas
- particles
- 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
- Treating Waste Gases (AREA)
Abstract
PURPOSE: To purify waste gas contg. hydrochloric acid with good efficiency by spraying a specific amount of slaked lime slurry to the waste gas contg. hydrochloric acid to absorb hydrochloric acid, drying the gas by the heat retained in the waste gas and recovering solid particles composed of slaked lime and calcium chloride in a specific ratio.
CONSTITUTION: A waste gas 1 contg. hydrochloric acid gas is put into an evaporation reaction tower 2, and slaked lime slurry 3 is sprayed from nozzles into the tower 2, so that it is mixed in the gas. At this time, the rate of spraying of the slaked lime is made more than twice the stoichiometric amount of hydrochloric acid. In the evaporation reaction tower 2, the moisture in the slury evaporates immediately by the effect of the heat retained by the waste gas 1, and the mixed particles of calcium chloride particles and excess slaked lime particles float in the gas. This waste gas 7 is led into a dust collecting device 8, where the mixed particled are separated. The weight ratio of the slaked lime and calcium chloride in these recovered mixed particles is controlled to 1 or more.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16857779A JPS5689822A (en) | 1979-12-25 | 1979-12-25 | Purification of waste gas containing hydrochloric acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16857779A JPS5689822A (en) | 1979-12-25 | 1979-12-25 | Purification of waste gas containing hydrochloric acid |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5689822A true JPS5689822A (en) | 1981-07-21 |
Family
ID=15870621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16857779A Pending JPS5689822A (en) | 1979-12-25 | 1979-12-25 | Purification of waste gas containing hydrochloric acid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5689822A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5471778A (en) * | 1977-10-31 | 1979-06-08 | Niro Atomizer As | Method of removing hydrogen chloride from waste gas |
-
1979
- 1979-12-25 JP JP16857779A patent/JPS5689822A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5471778A (en) * | 1977-10-31 | 1979-06-08 | Niro Atomizer As | Method of removing hydrogen chloride from waste gas |
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