JPS5584597A - Prevention of scaling in dust collection treating water at converter waste gas - Google Patents
Prevention of scaling in dust collection treating water at converter waste gasInfo
- Publication number
- JPS5584597A JPS5584597A JP15702778A JP15702778A JPS5584597A JP S5584597 A JPS5584597 A JP S5584597A JP 15702778 A JP15702778 A JP 15702778A JP 15702778 A JP15702778 A JP 15702778A JP S5584597 A JPS5584597 A JP S5584597A
- Authority
- JP
- Japan
- Prior art keywords
- treated water
- dust collection
- scaling
- scale
- 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
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
PURPOSE: To prevent the formation of scale by dispersing hard components by keeping chlorine ion concentration high in dust collection treatment water to be used again for treatment.
CONSTITUTION: When using again treated water of pH 9 or more, obtained from the coagulating sedimentation of the coverter waste gas dust collection water, sodium chloride, etc., is added to the treated water in order to prevent the formation of scale. In this case, the preferred concentration of chlorine ion necessary for preventing the scaling in treated water is 2000ppm or more, corresponding to more than 4 times as much as calcium hardness of treated water. The presence of 10000W 40000ppm of chlorine ion in treated water, corresponding to more than 8 times as much as the calcium hardness, will bring on more preferable results. Furthermore, it is better to add concurrently scale dispersants selected from acrylic acid homopolymers, the copolymers of acrylic acid and any other monomer, phosphonic acids, and phosphonocarboxylic acids.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15702778A JPS5584597A (en) | 1978-12-19 | 1978-12-19 | Prevention of scaling in dust collection treating water at converter waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15702778A JPS5584597A (en) | 1978-12-19 | 1978-12-19 | Prevention of scaling in dust collection treating water at converter waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5584597A true JPS5584597A (en) | 1980-06-25 |
Family
ID=15640575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15702778A Pending JPS5584597A (en) | 1978-12-19 | 1978-12-19 | Prevention of scaling in dust collection treating water at converter waste gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5584597A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4451376A (en) * | 1983-07-28 | 1984-05-29 | Nalco Chemical Company | Multi-functional hypobromide precursors |
| JP2001070987A (en) * | 1999-09-03 | 2001-03-21 | Katayama Chem Works Co Ltd | Water treatment method |
| JP2002126787A (en) * | 2000-10-24 | 2002-05-08 | Kurita Water Ind Ltd | Scale preventing method and scale inhibitor |
| JPWO2007080811A1 (en) * | 2006-01-11 | 2009-06-11 | 栗田工業株式会社 | Scale inhibitor and scale prevention method |
-
1978
- 1978-12-19 JP JP15702778A patent/JPS5584597A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4451376A (en) * | 1983-07-28 | 1984-05-29 | Nalco Chemical Company | Multi-functional hypobromide precursors |
| JP2001070987A (en) * | 1999-09-03 | 2001-03-21 | Katayama Chem Works Co Ltd | Water treatment method |
| JP2002126787A (en) * | 2000-10-24 | 2002-05-08 | Kurita Water Ind Ltd | Scale preventing method and scale inhibitor |
| JP4577466B2 (en) * | 2000-10-24 | 2010-11-10 | 栗田工業株式会社 | Scale prevention method and scale inhibitor |
| JPWO2007080811A1 (en) * | 2006-01-11 | 2009-06-11 | 栗田工業株式会社 | Scale inhibitor and scale prevention method |
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