JPS5745327A - Treatment of waste gas containing fluorine type components - Google Patents
Treatment of waste gas containing fluorine type componentsInfo
- Publication number
- JPS5745327A JPS5745327A JP55119531A JP11953180A JPS5745327A JP S5745327 A JPS5745327 A JP S5745327A JP 55119531 A JP55119531 A JP 55119531A JP 11953180 A JP11953180 A JP 11953180A JP S5745327 A JPS5745327 A JP S5745327A
- Authority
- JP
- Japan
- Prior art keywords
- treatment
- liquid
- contg
- absorbing liquid
- waste gas
- 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 prevent the accumulation of the silica content in absorbing liquid and improve the purity of recovered CaF2 by recovering calcium fluoride from the absorbing liquid after the treatment of waste gases contg. fluorine type components, then adding a magnesium component to settle and remove the silica content then recycling the same.
CONSTITUTION: A treatment method which allows a waste gas 2 contg. fluorine components to contact absorbing liquid 4 of 4.4W5.5pH contg. CaCl2 to remove fluorines, conducts the liquid after the treatment to an absorbing liquid circulating tank 5, adds CaCO3 6, HCl 7 to control its pH to 4W5.5, and recycles the regenerated absorbing liquid regenerated of CaCl2 for treatment of the waste gas 2 contg. fluorine components. At this time, part thereof is fed to the 1st solid-liquid separating machine 10 where the CaF2 12 is recovered, next is is fed to a reaction tank 13, where it is added with an Mg compound 15 such as dolomite and is heated. The resultant MgO.nSiO2 18 is separated in the 2nd solid-liquid separating machine 16. The separated liquid is returned to the tank 5 and is reused.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55119531A JPS5745327A (en) | 1980-08-29 | 1980-08-29 | Treatment of waste gas containing fluorine type components |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55119531A JPS5745327A (en) | 1980-08-29 | 1980-08-29 | Treatment of waste gas containing fluorine type components |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5745327A true JPS5745327A (en) | 1982-03-15 |
Family
ID=14763583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55119531A Pending JPS5745327A (en) | 1980-08-29 | 1980-08-29 | Treatment of waste gas containing fluorine type components |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5745327A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003052435A (en) * | 2001-07-30 | 2003-02-25 | Acqua Di Parma Srl | Improved fixing tool for shoulder strap of hand bag |
-
1980
- 1980-08-29 JP JP55119531A patent/JPS5745327A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003052435A (en) * | 2001-07-30 | 2003-02-25 | Acqua Di Parma Srl | Improved fixing tool for shoulder strap of hand bag |
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