JPS558475A - Treating method for wet dust of blast furnace - Google Patents
Treating method for wet dust of blast furnaceInfo
- Publication number
- JPS558475A JPS558475A JP8162478A JP8162478A JPS558475A JP S558475 A JPS558475 A JP S558475A JP 8162478 A JP8162478 A JP 8162478A JP 8162478 A JP8162478 A JP 8162478A JP S558475 A JPS558475 A JP S558475A
- Authority
- JP
- Japan
- Prior art keywords
- zinc
- dust
- liquid
- blast furnace
- carrying
- 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
- 239000000428 dust Substances 0.000 title abstract 7
- 238000000034 method Methods 0.000 title abstract 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 6
- 229910052725 zinc Inorganic materials 0.000 abstract 6
- 239000011701 zinc Substances 0.000 abstract 6
- 239000007788 liquid Substances 0.000 abstract 5
- 238000006386 neutralization reaction Methods 0.000 abstract 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 3
- 239000002002 slurry Substances 0.000 abstract 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 2
- 238000005406 washing Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 abstract 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- HFMDLUQUEXNBOP-UHFFFAOYSA-N n-[4-amino-1-[[1-[[4-amino-1-oxo-1-[[6,9,18-tris(2-aminoethyl)-15-benzyl-3-(1-hydroxyethyl)-12-(2-methylpropyl)-2,5,8,11,14,17,20-heptaoxo-1,4,7,10,13,16,19-heptazacyclotricos-21-yl]amino]butan-2-yl]amino]-3-hydroxy-1-oxobutan-2-yl]amino]-1-oxobutan-2-yl] Chemical compound OS(O)(=O)=O.N1C(=O)C(CCN)NC(=O)C(NC(=O)C(CCN)NC(=O)C(C(C)O)NC(=O)C(CCN)NC(=O)CCCCC(C)CC)CCNC(=O)C(C(C)O)NC(=O)C(CCN)NC(=O)C(CCN)NC(=O)C(CC(C)C)NC(=O)C1CC1=CC=CC=C1 HFMDLUQUEXNBOP-UHFFFAOYSA-N 0.000 abstract 1
- 239000008188 pellet Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
PURPOSE: To separate and recover the iron powder contained dust and zinc with a high efficiency, by extracting wet dust slurry of blast furnace by sulfuric acid having a specific mol ratio afainst zinc and carrying out floatation separation after carrying out primary neutralization of extracting liquid by CaCo3 and next, carrying out secondary neutralization.
CONSTITUTION: 3W5 times of sufuric acid against zinc mol ratio, is added to the wet dust slurry of blast furance dividedly and the dust slurry is extracted. Solid is separated from liquid and extracting liquid and extracted residue are obtained after extraction and adhered soluble zinc is removed by washing the above residue. The above dust is reused for tlhe raw material of the blast furnace as zinc removed dust through sintering or pellet process. The extracting liquid and water washing liquid are mixed together and primary neutralization is carried out regulating pH at 4W5 by CaCo3. Moreover, floatation collector is added and iron is separated as scum by floation and then, the above scum is sent to the water treating process of extracted residue. Secondary neutralization of floatation tail solution is carried out by using alkli metal carbonate or bicarbonate and next, cake contained zinc having a high ZnO purity, is obtained by sedimentation separation concentration or direct filtration.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8162478A JPS558475A (en) | 1978-07-04 | 1978-07-04 | Treating method for wet dust of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8162478A JPS558475A (en) | 1978-07-04 | 1978-07-04 | Treating method for wet dust of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS558475A true JPS558475A (en) | 1980-01-22 |
Family
ID=13751475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8162478A Pending JPS558475A (en) | 1978-07-04 | 1978-07-04 | Treating method for wet dust of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS558475A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001098546A1 (en) * | 2000-06-23 | 2001-12-27 | Patrice Stengel | Method for sulphuric acid treatment and recycling of blast furnace sludge |
| CN104846217A (en) * | 2015-04-21 | 2015-08-19 | 昆明理工大学 | Method for leaching and recovering zinc from blast furnace dust by multi-ligand composite coordination ammonia process and device thereof |
-
1978
- 1978-07-04 JP JP8162478A patent/JPS558475A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001098546A1 (en) * | 2000-06-23 | 2001-12-27 | Patrice Stengel | Method for sulphuric acid treatment and recycling of blast furnace sludge |
| FR2810678A1 (en) * | 2000-06-23 | 2001-12-28 | Patrice Jean Albert Stengel | Recycling of sludge obtained from blast furnace gas purification in aqueous phase includes treatment with sulfuric acid, clarification, filtering, oxidizing the liquid phase with hydrogen peroxide and precipitating ferric hydroxides |
| CN104846217A (en) * | 2015-04-21 | 2015-08-19 | 昆明理工大学 | Method for leaching and recovering zinc from blast furnace dust by multi-ligand composite coordination ammonia process and device thereof |
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