PL408584A1 - A method of hydrometallurgical separation of iron and its compounds from non-ferrous metals and their compounds, and a device for implementing this method - Google Patents
A method of hydrometallurgical separation of iron and its compounds from non-ferrous metals and their compounds, and a device for implementing this methodInfo
- Publication number
- PL408584A1 PL408584A1 PL408584A PL40858414A PL408584A1 PL 408584 A1 PL408584 A1 PL 408584A1 PL 408584 A PL408584 A PL 408584A PL 40858414 A PL40858414 A PL 40858414A PL 408584 A1 PL408584 A1 PL 408584A1
- Authority
- PL
- Poland
- Prior art keywords
- compounds
- solid phase
- iron
- leaching
- separated
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/02—Working-up flue dust
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/12—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Ujawniono sposób hydrometalurgicznej separacji żelaza, i jego związków od metali nieżelaznych i ich związków polegający na tym, że szlam poddaje się ługowaniu w zalkalizowanym roztworze, przy równoczesnym działaniu prądu zmiennego lub prądu stałego aż do osiągnięcia temperatury 40 - 45°C. Po czym korzystnie pod nieprzerwanym działaniem prądu zmiennego lub prądu stałego, otrzymany roztwór szlamu alkalizuje się do osiągnięcia pH w zakresie 11,5 - 14,0. Następnie rozdziela się fazę ciekłą od fazy stałej, a oddzieloną fazę stałą zakwasza się wodnym roztworem kwasu octowego oraz poddaje głębokiemu ługowaniu. Z kolei oddziela się fazę ciekłą od fazy stałej, a na koniec tak otrzymaną fazę stałą przemywa się alkalicznym roztworem do osiągnięcia pH 6,8 - 7,2. Odfiltrowuje się nadmiar wody uzyskując fazę stałą zawierającą żelazo, związki żelaza, krzemionkę oraz węgiel nadającą się do powtórnej obróbki termicznej. Przedmiotem wynalazku jest także ługownik zawierający otwarty żelazny zbiornik stanowiący obudowę ługownika (15), pompę wirnikową (14) wprowadzającą w ruch pulpę szlamową oraz baterię filtrów workowych (21) albo baterię dysków filtrujących.A method for hydrometallurgical separation of iron and its compounds from non-ferrous metals and their compounds is disclosed, which comprises subjecting the sludge to leaching in an alkaline solution under the simultaneous action of alternating current or direct current until a temperature of 40-45°C is reached. The resulting sludge solution is then, preferably under the continuous action of alternating current or direct current, alkalized until a pH of 11.5-14.0 is achieved. The liquid phase is then separated from the solid phase, and the separated solid phase is acidified with an aqueous acetic acid solution and subjected to deep leaching. The liquid phase is then separated from the solid phase, and finally the resulting solid phase is washed with an alkaline solution until a pH of 6.8-7.2 is achieved. Excess water is filtered off, obtaining a solid phase containing iron, iron compounds, silica, and carbon suitable for repeated thermal treatment. The subject of the invention is also a leaching tank comprising an open iron tank constituting the leaching tank housing (15), a rotary pump (14) for moving the sludge pulp and a battery of bag filters (21) or a battery of filter discs.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL408584A PL231506B1 (en) | 2014-06-17 | 2014-06-17 | Method for hydrometallurgical separation of iron and its compounds from non-ferrous metals and their compounds and the device for the execution of this method |
| PCT/PL2015/050023 WO2015194980A2 (en) | 2014-06-17 | 2015-06-17 | A method of hydrometallurgical separation of iron and its compounds from non-ferrous metals and their compounds and a device for carrying out said method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL408584A PL231506B1 (en) | 2014-06-17 | 2014-06-17 | Method for hydrometallurgical separation of iron and its compounds from non-ferrous metals and their compounds and the device for the execution of this method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL408584A1 true PL408584A1 (en) | 2015-12-21 |
| PL231506B1 PL231506B1 (en) | 2019-03-29 |
Family
ID=53765506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL408584A PL231506B1 (en) | 2014-06-17 | 2014-06-17 | Method for hydrometallurgical separation of iron and its compounds from non-ferrous metals and their compounds and the device for the execution of this method |
Country Status (2)
| Country | Link |
|---|---|
| PL (1) | PL231506B1 (en) |
| WO (1) | WO2015194980A2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018219464A1 (en) * | 2017-06-01 | 2018-12-06 | Thyssenkrupp Steel Europe Ag | Integrated process for recycling washing tower sludge for recovery of iron oxide and carbon |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL80509B1 (en) | 1973-03-26 | 1975-08-30 | ||
| WO1981003500A1 (en) * | 1980-05-28 | 1981-12-10 | Univ Cardiff | Heavy metal recovery in ferrous metal production processes |
| PL231252A1 (en) | 1981-05-18 | 1982-11-22 | Huta Kosciuszko |
-
2014
- 2014-06-17 PL PL408584A patent/PL231506B1/en unknown
-
2015
- 2015-06-17 WO PCT/PL2015/050023 patent/WO2015194980A2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015194980A3 (en) | 2016-03-24 |
| PL231506B1 (en) | 2019-03-29 |
| WO2015194980A2 (en) | 2015-12-23 |
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