JPS56150139A - Effective use for deteriorated catalyst - Google Patents
Effective use for deteriorated catalystInfo
- Publication number
- JPS56150139A JPS56150139A JP5353080A JP5353080A JPS56150139A JP S56150139 A JPS56150139 A JP S56150139A JP 5353080 A JP5353080 A JP 5353080A JP 5353080 A JP5353080 A JP 5353080A JP S56150139 A JPS56150139 A JP S56150139A
- Authority
- JP
- Japan
- Prior art keywords
- binder
- dispersibility
- washings
- briquetting
- acid
- 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
- Manufacture And Refinement Of Metals (AREA)
Abstract
PURPOSE: To enhance the dispersibility of a binder and increase the uniformity of briquets by a method wherein the washings of the deteriorated catalyst used for recovering a mixture of nitric acid and hydrofluoric acid is added to the binder, when briquetting sludge or the like.
CONSTITUTION: When briquetting the sludge, scale, dust or the like generated from the production of stainless steel, the washings of the deteriorated catalyst used in a device for recovering the mixture of nitric acid and hydrofluoric acid is added to the binder used for briquetting. While the binder contains lignisulfonic acid excellent in caking property and dispersibility as a main constituent, the washings contains an aromatic carboxylic acid having the hydrophilic carboxyl group. In addition, the washings contain also an electrolyte such as Na2SO4 which stabilizes the dispersibility of the binder. Accordingly, the dispersibility and fluidity of the binder are enhanced and such treatments as incineration or the like can be unnecessitated.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5353080A JPS56150139A (en) | 1980-04-24 | 1980-04-24 | Effective use for deteriorated catalyst |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5353080A JPS56150139A (en) | 1980-04-24 | 1980-04-24 | Effective use for deteriorated catalyst |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56150139A true JPS56150139A (en) | 1981-11-20 |
Family
ID=12945359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5353080A Pending JPS56150139A (en) | 1980-04-24 | 1980-04-24 | Effective use for deteriorated catalyst |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56150139A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01304093A (en) * | 1988-01-21 | 1989-12-07 | Iron Tiger Investments Inc | Particle flocculation method and particle floc |
JP2011098264A (en) * | 2009-11-04 | 2011-05-19 | Daido Steel Co Ltd | Method for treating dust in exhaust gas |
-
1980
- 1980-04-24 JP JP5353080A patent/JPS56150139A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01304093A (en) * | 1988-01-21 | 1989-12-07 | Iron Tiger Investments Inc | Particle flocculation method and particle floc |
JP2011098264A (en) * | 2009-11-04 | 2011-05-19 | Daido Steel Co Ltd | Method for treating dust in exhaust gas |
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