JPS57102295A - Scale preventing agent for dust collecting water system of blast furnace gas - Google Patents
Scale preventing agent for dust collecting water system of blast furnace gasInfo
- Publication number
- JPS57102295A JPS57102295A JP17752080A JP17752080A JPS57102295A JP S57102295 A JPS57102295 A JP S57102295A JP 17752080 A JP17752080 A JP 17752080A JP 17752080 A JP17752080 A JP 17752080A JP S57102295 A JPS57102295 A JP S57102295A
- Authority
- JP
- Japan
- Prior art keywords
- blast furnace
- dust collecting
- collecting water
- furnace gas
- copolymer
- 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
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
PURPOSE: To suppress the deposition of zinc salts in blast furnace gas dust collecting water, particularly basic zinc carbonate and prevent the scale formation in a blast furnace by adding a copolymer of a maleic acid and amylene to the blast furnace gas dust collecting water.
CONSTITUTION: Maleic acid and amylene providing structural units of suitable molar ratio are added into a suitable org. solvent, and further a polymn. initiator such as peroxide is added under heating, whereby a maleic acid-amylene copolymer of 500W50,000mol.wts. is synthesized. This copolymer is added to arbitrary places in a blast furnace gas dust collecting water system (the system from a solid-liquid separator such as thickener, etc. to a dust collector). Although the amt. of addition varies with the pH of the dust collecting water, the concn. of zinc ions, etc., the addition of 0.1W50ppm to circulating water is preferable. Said copolymer is used alone, and it is equally well to make combination use of known scale preventing agents such as polyphosphonic acid and phosphonic acid salts or the like.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17752080A JPS57102295A (en) | 1980-12-16 | 1980-12-16 | Scale preventing agent for dust collecting water system of blast furnace gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17752080A JPS57102295A (en) | 1980-12-16 | 1980-12-16 | Scale preventing agent for dust collecting water system of blast furnace gas |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57102295A true JPS57102295A (en) | 1982-06-25 |
JPS5760079B2 JPS5760079B2 (en) | 1982-12-17 |
Family
ID=16032346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17752080A Granted JPS57102295A (en) | 1980-12-16 | 1980-12-16 | Scale preventing agent for dust collecting water system of blast furnace gas |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57102295A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS597867A (en) * | 1982-07-06 | 1984-01-17 | 辛島 仁 | Freezing refrigerating display case |
-
1980
- 1980-12-16 JP JP17752080A patent/JPS57102295A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5760079B2 (en) | 1982-12-17 |
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