JPS571423A - Treating method for waste gas containing hydrogen chloride and sulfur oxide - Google Patents
Treating method for waste gas containing hydrogen chloride and sulfur oxideInfo
- Publication number
- JPS571423A JPS571423A JP7556080A JP7556080A JPS571423A JP S571423 A JPS571423 A JP S571423A JP 7556080 A JP7556080 A JP 7556080A JP 7556080 A JP7556080 A JP 7556080A JP S571423 A JPS571423 A JP S571423A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- naoh
- solution
- hydrogen chloride
- aqueous
- 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 clarify the waste gas economically and efficiently while regenerating and reciruclating NaOH, by a method wherein a harmful waste gas containing hydrogen chloride, sulfur oxides and the like is treated with an aqueous solution of NaOH and the aqueous liquid derived from the treatment is electrolyzed.
CONSTITUTION: The exhaust gas 2 containing hydrogen chloride, SOx and the like is brought into reaction with an aqueous NaOH solution 3 in a smoke scrubber 4 to form salts such as NaCl, Na2SO4, Na2SO3, etc. Simultaneously, heavy metals, Ca, Mg and the like contained in the exhaust gas are also removed by dissolving them into the solution, and the gas is discharged as a clean gas via an outlet 5. The aqueous solution containing the various salts and the like as solutes is treated in a purification plant 7 to remove the ions of heavy metals, Ca, Mg, SO4 and SO3 by precipitation, then the residual aqueous NaCl solution 8 is brought into reaction with NaClO 10 in a treating tank 9 to reduce the COD value. The thus treated solution is then electrolyzed in a diaphragm type electrolytic cell 12 to produce Cl gas and NaOH. The NaOH is reused in the smoke scrubber 4, while the Cl gas is fed to a plant 17 for producing NaClO.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7556080A JPS571423A (en) | 1980-06-06 | 1980-06-06 | Treating method for waste gas containing hydrogen chloride and sulfur oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7556080A JPS571423A (en) | 1980-06-06 | 1980-06-06 | Treating method for waste gas containing hydrogen chloride and sulfur oxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS571423A true JPS571423A (en) | 1982-01-06 |
Family
ID=13579679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7556080A Pending JPS571423A (en) | 1980-06-06 | 1980-06-06 | Treating method for waste gas containing hydrogen chloride and sulfur oxide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS571423A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59116123A (en) * | 1982-12-23 | 1984-07-04 | Osaka Soda Co Ltd | Manufacture of purified salt |
| US5009871A (en) * | 1984-08-31 | 1991-04-23 | Nippon Kokan Kabushiki Kaisha | Method of removing mercury in exhaust gases from a waster incinerator |
| CN112756323A (en) * | 2020-12-29 | 2021-05-07 | 深圳普门科技股份有限公司 | Cleaning agent and application thereof |
| CN115738658A (en) * | 2022-11-27 | 2023-03-07 | 昆明理工大学 | Method and device for purifying malodorous gas containing phosphorus and sulfur |
-
1980
- 1980-06-06 JP JP7556080A patent/JPS571423A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59116123A (en) * | 1982-12-23 | 1984-07-04 | Osaka Soda Co Ltd | Manufacture of purified salt |
| JPS6144806B2 (en) * | 1982-12-23 | 1986-10-04 | Osaka Soda Co Ltd | |
| US5009871A (en) * | 1984-08-31 | 1991-04-23 | Nippon Kokan Kabushiki Kaisha | Method of removing mercury in exhaust gases from a waster incinerator |
| CN112756323A (en) * | 2020-12-29 | 2021-05-07 | 深圳普门科技股份有限公司 | Cleaning agent and application thereof |
| CN115738658A (en) * | 2022-11-27 | 2023-03-07 | 昆明理工大学 | Method and device for purifying malodorous gas containing phosphorus and sulfur |
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