FR2291280A1 - Recovering metals from industrial waste - treating waste contg oxides of zinc copper lead and iron - Google Patents
Recovering metals from industrial waste - treating waste contg oxides of zinc copper lead and ironInfo
- Publication number
- FR2291280A1 FR2291280A1 FR7437994A FR7437994A FR2291280A1 FR 2291280 A1 FR2291280 A1 FR 2291280A1 FR 7437994 A FR7437994 A FR 7437994A FR 7437994 A FR7437994 A FR 7437994A FR 2291280 A1 FR2291280 A1 FR 2291280A1
- Authority
- FR
- France
- Prior art keywords
- oxides
- soln
- iron
- zno
- contg
- 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
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
- C22B3/14—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions containing ammonia or ammonium salts
-
- 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)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Metals are recovered from industrial waste contg. oxides of Zn, Fe, Pb and Cu by treating with hot (90-102 degrees C) NH4Cl sepg. the soln. from undissolved iron oxide, adding Zn to the soln. to ppte Cu and Ph, and cooling the soln. to ppte ZnO. The process permits recovery of metals from fly ash and electric furnace flue dust. The ZnO is used in paint pigment and rubber compounding. Compared with prior art processes the present process has a higher ZnO yield, less contamination with other salts e.g. 0.2% chloride and extensive roasting and evapn. steps are eliminated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7437994A FR2291280A1 (en) | 1974-11-18 | 1974-11-18 | Recovering metals from industrial waste - treating waste contg oxides of zinc copper lead and iron |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7437994A FR2291280A1 (en) | 1974-11-18 | 1974-11-18 | Recovering metals from industrial waste - treating waste contg oxides of zinc copper lead and iron |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2291280A1 true FR2291280A1 (en) | 1976-06-11 |
FR2291280B1 FR2291280B1 (en) | 1978-09-22 |
Family
ID=9145034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7437994A Granted FR2291280A1 (en) | 1974-11-18 | 1974-11-18 | Recovering metals from industrial waste - treating waste contg oxides of zinc copper lead and iron |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2291280A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0551155A1 (en) * | 1992-01-10 | 1993-07-14 | B.U.S. ENGITEC SERVIZI AMBIENTALI S.r.l. | Process for recovering zinc and lead from flue dusts from electrical steel works and for recycling said purified metals to the furnace, and installation for implementing said process |
FR2716895A1 (en) * | 1994-03-07 | 1995-09-08 | Scegi | Process for reprocessing by-products of the metallurgical industry. |
ES2114452A1 (en) * | 1995-09-26 | 1998-05-16 | Consejo Superior Investigacion | Process for recovering copper from metal materials based on oxides and sulphates |
-
1974
- 1974-11-18 FR FR7437994A patent/FR2291280A1/en active Granted
Non-Patent Citations (1)
Title |
---|
NEANT * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0551155A1 (en) * | 1992-01-10 | 1993-07-14 | B.U.S. ENGITEC SERVIZI AMBIENTALI S.r.l. | Process for recovering zinc and lead from flue dusts from electrical steel works and for recycling said purified metals to the furnace, and installation for implementing said process |
FR2716895A1 (en) * | 1994-03-07 | 1995-09-08 | Scegi | Process for reprocessing by-products of the metallurgical industry. |
EP0671477A1 (en) * | 1994-03-07 | 1995-09-13 | SCEGI Sarl | Process for treating metallurgical by-products |
ES2114452A1 (en) * | 1995-09-26 | 1998-05-16 | Consejo Superior Investigacion | Process for recovering copper from metal materials based on oxides and sulphates |
Also Published As
Publication number | Publication date |
---|---|
FR2291280B1 (en) | 1978-09-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |