ES2200717A1 - Method for eliminating and recovering zinc contained in compacted galvanized scrap and corresponding facility - Google Patents
Method for eliminating and recovering zinc contained in compacted galvanized scrap and corresponding facilityInfo
- Publication number
- ES2200717A1 ES2200717A1 ES200250054A ES200250054A ES2200717A1 ES 2200717 A1 ES2200717 A1 ES 2200717A1 ES 200250054 A ES200250054 A ES 200250054A ES 200250054 A ES200250054 A ES 200250054A ES 2200717 A1 ES2200717 A1 ES 2200717A1
- Authority
- ES
- Spain
- Prior art keywords
- zinc
- compacted
- eliminating
- galvanized scrap
- zinc contained
- 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
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title abstract 5
- 239000011701 zinc Substances 0.000 title abstract 5
- 229910052725 zinc Inorganic materials 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 238000010309 melting process Methods 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000002341 toxic gas Substances 0.000 abstract 1
- 230000008016 vaporization Effects 0.000 abstract 1
- 238000009834 vaporization Methods 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
The invention relates to a method for eliminating and recovering zinc contained in compacted galvanized scrap, which is normally used as raw material for melting in foundries and steel works, wherein zinc is evaporated and separated from iron by heating it at a temperature that is lower than that of normal vaporization temperature of zinc (906 DEG C) by means of induction and under vacuum (approximately 5 mbar). Condensation of vapors is then carried out to recover and economically recycle zinc in solid and highly pure state. Said method is carried out before the galvanized scrap is included in the melting process with the aim of avoiding treatment of the powders collected from the smokes after the melting process, as has been done traditionally, and to prevent toxic gases from being released to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200250054A ES2200717B1 (en) | 2000-12-29 | 2000-12-29 | PROCEDURE FOR THE ELIMINATION AND RECOVERY OF THE CINC CONTAINED IN COMPACT GALVANIZED CHATARRA, AS WELL AS CORRESPONDING INSTALLATION. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200250054A ES2200717B1 (en) | 2000-12-29 | 2000-12-29 | PROCEDURE FOR THE ELIMINATION AND RECOVERY OF THE CINC CONTAINED IN COMPACT GALVANIZED CHATARRA, AS WELL AS CORRESPONDING INSTALLATION. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2200717A1 true ES2200717A1 (en) | 2004-03-01 |
| ES2200717B1 ES2200717B1 (en) | 2005-05-01 |
Family
ID=31970642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES200250054A Expired - Fee Related ES2200717B1 (en) | 2000-12-29 | 2000-12-29 | PROCEDURE FOR THE ELIMINATION AND RECOVERY OF THE CINC CONTAINED IN COMPACT GALVANIZED CHATARRA, AS WELL AS CORRESPONDING INSTALLATION. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2200717B1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1284657A (en) * | 1970-03-23 | 1972-08-09 | Imp Smelting Corp Ltd | Improvements in or relating to the separation of zinc and cadmium |
| EP0493122A2 (en) * | 1990-12-27 | 1992-07-01 | Ogihara Technical Center Co Ltd | Method and apparatus for recovering substance adhered to object to be processed |
| EP0745692A1 (en) * | 1995-05-31 | 1996-12-04 | Toyota Jidosha Kabushiki Kaisha | Method and apparatus of treating dusts containing oxides |
| EP0821071A1 (en) * | 1996-07-17 | 1998-01-28 | Aichi Steel Works, Ltd. | Vacuum treatment of dust exhausted from iron and steel melting furnace for recovery of lead and zinc |
| JPH10287933A (en) * | 1997-04-16 | 1998-10-27 | Chugai Ro Co Ltd | Processing method and equipment for zinc-containing dust |
-
2000
- 2000-12-29 ES ES200250054A patent/ES2200717B1/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1284657A (en) * | 1970-03-23 | 1972-08-09 | Imp Smelting Corp Ltd | Improvements in or relating to the separation of zinc and cadmium |
| EP0493122A2 (en) * | 1990-12-27 | 1992-07-01 | Ogihara Technical Center Co Ltd | Method and apparatus for recovering substance adhered to object to be processed |
| EP0745692A1 (en) * | 1995-05-31 | 1996-12-04 | Toyota Jidosha Kabushiki Kaisha | Method and apparatus of treating dusts containing oxides |
| EP0821071A1 (en) * | 1996-07-17 | 1998-01-28 | Aichi Steel Works, Ltd. | Vacuum treatment of dust exhausted from iron and steel melting furnace for recovery of lead and zinc |
| JPH10287933A (en) * | 1997-04-16 | 1998-10-27 | Chugai Ro Co Ltd | Processing method and equipment for zinc-containing dust |
Non-Patent Citations (1)
| Title |
|---|
| [en linea]. Recuperado de BASE DE DATOS WPI, Derwent AN 1999-018586 & JP 10287933 A (AICHI SEIKO K.K. et al.) 27.10.1998 (resumen) * |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2200717B1 (en) | 2005-05-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EC2A | Search report published |
Date of ref document: 20040301 Kind code of ref document: A1 |
|
| FG2A | Definitive protection |
Ref document number: 2200717B1 Country of ref document: ES |
|
| FD1A | Patent lapsed |
Effective date: 20100623 |