JPS5641335A - Separating and recovering method for useful mineral from electrically collected dust generated in reduced pellet manufacturing process - Google Patents
Separating and recovering method for useful mineral from electrically collected dust generated in reduced pellet manufacturing processInfo
- Publication number
- JPS5641335A JPS5641335A JP11195979A JP11195979A JPS5641335A JP S5641335 A JPS5641335 A JP S5641335A JP 11195979 A JP11195979 A JP 11195979A JP 11195979 A JP11195979 A JP 11195979A JP S5641335 A JPS5641335 A JP S5641335A
- Authority
- JP
- Japan
- Prior art keywords
- soln
- iron
- zinc sulfate
- residue
- collected dust
- 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
- 239000000428 dust Substances 0.000 title abstract 5
- 239000008188 pellet Substances 0.000 title abstract 2
- 229910052500 inorganic mineral Inorganic materials 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000011707 mineral Substances 0.000 title 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 4
- 239000011701 zinc Substances 0.000 abstract 4
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 abstract 4
- 229960001763 zinc sulfate Drugs 0.000 abstract 4
- 229910000368 zinc sulfate Inorganic materials 0.000 abstract 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 abstract 2
- 229910052793 cadmium Inorganic materials 0.000 abstract 1
- ONIOAEVPMYCHKX-UHFFFAOYSA-N carbonic acid;zinc Chemical compound [Zn].OC(O)=O ONIOAEVPMYCHKX-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 238000002386 leaching Methods 0.000 abstract 1
- 229910052745 lead Inorganic materials 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000011667 zinc carbonate Substances 0.000 abstract 1
- 229910000010 zinc carbonate Inorganic materials 0.000 abstract 1
- 239000011787 zinc oxide Substances 0.000 abstract 1
- 235000014692 zinc oxide Nutrition 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
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
PURPOSE: To recover Zn, iron, etc. from electrically collected dust and utilize them as useful products again by treating the dust with sulfuric acid, separating a zinc sulfate soln. from iron-contg. residue, and recovering Zn from the soln. as ZnCO3 and iron, etc. from the residue by magnetic concn.
CONSTITUTION: Electrically collected dust contg. ZnO, PbO, FeO, MnO, CdO, etc. and generated in the mnufacture of reduced pellets is slurried and adjusted to 0.5W 2.0pH with concd. sulfuric acid to leach Zn. This zinc sulfate fluid is separated into a zinc sulfate soln. and iron-base residue by solid-liq. separation. NaClO is added to the soln., and while adding Na2CO3 the soln. is kept at 4.0W5.0pH and regulated to 1,000W1,100mV oxidation potential with NaClO or Cl2 blown to separate Fe2+ and Mn2+ by precipitation. Zn dust is then added to the iron-free soln. to remove Cd, Pb, Cu, etc., and this zinc sulfate purified soln. is adjusted to 7.0W7.5pH with Na2CO3. The resulting precipitate is dried and calcined to recover activated zinc white. On the other hand, the leaching residue is subjected to magnetic concn. to separately recover magnetized and nonmagnetized substances.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11195979A JPS5641335A (en) | 1979-08-31 | 1979-08-31 | Separating and recovering method for useful mineral from electrically collected dust generated in reduced pellet manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11195979A JPS5641335A (en) | 1979-08-31 | 1979-08-31 | Separating and recovering method for useful mineral from electrically collected dust generated in reduced pellet manufacturing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5641335A true JPS5641335A (en) | 1981-04-18 |
| JPS5717060B2 JPS5717060B2 (en) | 1982-04-08 |
Family
ID=14574432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11195979A Granted JPS5641335A (en) | 1979-08-31 | 1979-08-31 | Separating and recovering method for useful mineral from electrically collected dust generated in reduced pellet manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5641335A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1319727A3 (en) * | 2001-12-11 | 2003-10-15 | CENTRO SVILUPPO MATERIALI S.p.A. | Pyro-hydrometallurgical process for the recovery of zinc, lead and other value metals from iron- and steelmaking shop dusts |
| JP2010002179A (en) * | 2009-10-07 | 2010-01-07 | Nippon Steel Corp | Exhaust gas treating apparatus for reduced iron manufacturing facility and operating method thereof |
| CN105214837A (en) * | 2015-10-14 | 2016-01-06 | 广州有色金属研究院 | One is rich in magnetic iron ore and pyritous copper sulphur ore deposit beneficiation method |
| CN106244801A (en) * | 2016-08-01 | 2016-12-21 | 江苏省冶金设计院有限公司 | Process the method and system of zinc leaching residue |
| CN111238290A (en) * | 2018-11-28 | 2020-06-05 | 云南永昌铅锌股份有限公司 | Method for cleaning manganese dioxide scale in zinc hydrometallurgy heat exchanger pipeline |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01127266U (en) * | 1988-02-23 | 1989-08-31 |
-
1979
- 1979-08-31 JP JP11195979A patent/JPS5641335A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1319727A3 (en) * | 2001-12-11 | 2003-10-15 | CENTRO SVILUPPO MATERIALI S.p.A. | Pyro-hydrometallurgical process for the recovery of zinc, lead and other value metals from iron- and steelmaking shop dusts |
| JP2010002179A (en) * | 2009-10-07 | 2010-01-07 | Nippon Steel Corp | Exhaust gas treating apparatus for reduced iron manufacturing facility and operating method thereof |
| CN105214837A (en) * | 2015-10-14 | 2016-01-06 | 广州有色金属研究院 | One is rich in magnetic iron ore and pyritous copper sulphur ore deposit beneficiation method |
| CN106244801A (en) * | 2016-08-01 | 2016-12-21 | 江苏省冶金设计院有限公司 | Process the method and system of zinc leaching residue |
| CN111238290A (en) * | 2018-11-28 | 2020-06-05 | 云南永昌铅锌股份有限公司 | Method for cleaning manganese dioxide scale in zinc hydrometallurgy heat exchanger pipeline |
| CN111238290B (en) * | 2018-11-28 | 2022-03-15 | 云南永昌铅锌股份有限公司 | Method for cleaning manganese dioxide scale in zinc hydrometallurgy heat exchanger pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5717060B2 (en) | 1982-04-08 |
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