WO2007025317A1 - Verfahren zum abtrennen von verunreinigungen aus einsatzstoffenin kupferschmelzen - Google Patents
Verfahren zum abtrennen von verunreinigungen aus einsatzstoffenin kupferschmelzen Download PDFInfo
- Publication number
- WO2007025317A1 WO2007025317A1 PCT/AT2006/000343 AT2006000343W WO2007025317A1 WO 2007025317 A1 WO2007025317 A1 WO 2007025317A1 AT 2006000343 W AT2006000343 W AT 2006000343W WO 2007025317 A1 WO2007025317 A1 WO 2007025317A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- copper
- melt
- molten
- starting materials
- feedstocks
- 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
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/0054—Slag, slime, speiss, or dross treating
-
- 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
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/006—Pyrometallurgy working up of molten copper, e.g. refining
-
- 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
-
- 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/16—Dry methods smelting of sulfides or formation of mattes with volatilisation or condensation of the metal being produced
-
- 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
Definitions
- the invention relates to a method for separating impurities from slags, dusts, minerals, treatment residues of minerals or residual or residual materials. All these substances to be purified are referred to below as starting materials.
- melt metallurgical treatment processes are known in which iron melt is used to take up the impurities.
- a method of this type is described, for example, in AT 412 283 B.
- the aim of the process is to form environmentally friendly slags from iron-containing metallurgical residues and to recover the iron content contained therein.
- the residues in or over an iron melt are reduced by the carbon dissolved in the molten iron.
- Iron oxide and other metal oxides are reduced and taken up by the molten iron.
- the resulting metal can be used after dephosphorization as a substitute for a pig iron produced in the blast furnace or at high Cr / Ni contents as a means for stainless steel production.
- the generated slag can be used as clinker replacement in the cement industry.
- JP 11207288 also describes a melting process for treating residues from waste incineration.
- the combustion residues are charged in an electric arc furnace on a metal bath, which consists essentially of iron. This forms a slag layer. Slag and metal are continuously withdrawn together and fed to a water bath. The separation takes place by means of magnetic separator.
- the metal contains relatively much copper and can be used as a copper raw material.
- the accumulation of metals which are nobler than iron, for example copper or tin is disadvantageous. These metals can not be removed economically and are problematic from a certain limit for further use of molten iron.
- AT 412 283 B for example, a high-grade pig iron bath original is used, which is contaminated after treatment of the residues with nobler metals. This quality deterioration can lead to such a degree that it can no longer be used in the steel industry.
- the invention aims to avoid these disadvantages and difficulties and has as its object to provide a method for separating impurities from slags, dusts, minerals, treatment residues of minerals or residual or residual materials - called feedstocks - in the quality deterioration at be avoided over a longer time extending method or even with a plurality of consecutively running process cycles.
- the method should allow over the known methods energy savings and further cost savings thereby allow refractory lining of reactor vessels in which the process is carried out, have a long life.
- Vaporizing any volatile compounds present such as metal chlorides, - Reduction of metals of feedstocks nobler than copper in the molten copper, as well
- the molten copper has a minimum content of 50% copper.
- a molten copper has the advantage that the impurities that are no longer removable from molten iron can be easily removed from a molten copper in a conventional copper recycling process. In this way, the contaminated copper melt can be worked up again to high-quality copper.
- a particular advantage of using a copper melt is its low melting point compared to an iron melt. As a result, the processing temperature of the starting materials depends primarily on the melting point of the slag. This makes it possible to comply with low processing temperatures when carrying out the process, which is reflected in low energy costs and in a preservation of refractory linings metallurgical vessels in which the process is carried out.
- the molten copper may also be purified by injecting oxygen directly into the metallurgical vessel in which the process is carried out.
- the impurities that are less noble than copper are slagged.
- the resulting slag can be used due to the high copper content at the beginning of a subsequent process for the separation of impurities from feedstocks.
- Particularly advantageous for the method according to the invention is the use of copper scrap for the production of molten copper, since copper scrap is anyway fed to the copper recycling process.
- the molten copper can also be made by melting copper-containing waste material.
- new scrap manufactured waste
- / or scrap of copper and / or copper alloys can be formed.
- Part of the molten copper may be formed by adding slag formed by injecting oxygen into the molten copper, as mentioned above.
- the slag formed by the feedstocks to be purified is preferably treated with auxiliaries and / or waste materials to form clinker substitutes and / or sandblasting agents. Dust from incineration as well as from the iron and steel industry can be used as feedstocks to be cleaned.
- reducing agents for the starting materials preference is given to coke and / or coal, but substances which are less noble than copper may also be used as reducing agents, such as metallic waste materials, e.g. aluminum-containing waste and / or ferrous waste.
- the starting materials to be purified are injected together with the reducing agents in the molten copper.
- the formation of a copper melt and the melting of the starting materials and the addition of the reducing agent can be carried out simultaneously or in succession. So it is e.g. It is also possible that the starting materials to be cleaned are applied to a hot, not yet molten copper block, preferably in layers, and optionally present metal chlorides are evaporated, preferably a halogenating atmosphere is adjusted, preferably using a chlorine-containing purge gas.
- the copper block is melted together with the starting materials to be purified and introduced into the melt reducing agent, preferably injected via lances.
- the starting materials to be treated are injected into a copper melt in a metallurgical vessel together with a reducing agent.
- a reducing agent for example, coal or coke can be used.
- metallic reducing agent can be added in the form of metallic waste, for example aluminum or iron filings, wherein the proportion of aluminum or iron is preferably at least 80%.
- the copper melt is made by melting copper-containing waste material.
- copper-containing waste material mainly new scrap (manufacturing waste) or old scrap of copper and copper alloys (for example brass, bronzes, gunmetal, nickel silver) including shavings and dusts are considered.
- the preferred copper content in the starting materials is at least 50%.
- Table 2 the composition of a brass and a bronze waste are exemplified.
- Table 2 copper-containing waste material
- contaminated dusts, slags and minerals of different origin can be processed - in particular dusts from waste incineration and slags or dusts from the iron and steel industry.
- lead or stained glass waste, used catalysts and processing residues of minerals such as, for example, residual carbon residues (for example: pyrite burn-off) can be used.
- Furnace excavated material which has been infiltrated with noble metals for example Pt, Au, Ag
- noble metals for example Pt, Au, Ag
- the precious metals (Pt, Ag, Au) are produced during electrolytic refining in the anode sludge. From the anode sludge, the precious metals can be recovered and recycled by means of the method according to the invention.
- Noble metal-containing feedstocks such as e.g. The above-mentioned furnace outbreak material, thus contribute significantly to improving the efficiency of a copper smelter.
- Table 3 Dust from waste incineration
- Table 4 Slags and dusts from the iron and steel industry
- the PbO content can be 3-32%
- the components of the starting materials are divided by the treatment process according to their composition on copper bath, slag or exhaust gas.
- Metals in the feedstocks which are more noble than copper, are reduced and remain in the copper sclera. More noble constituents pass into the slag above the melt. Volatile compounds in the feedstocks, such as metal chlorides, in particular zinc chloride and lead chloride, evaporate.
- the slag is adjusted with auxiliary or waste materials so that they can be recycled as a clinker substitute or sandblasting agent. Thereafter, the slag is tapped and charged into a dry granulator. The granulation can be done by dividing the slag jet on a rotary plate into fine droplets, which solidify glassy in the air flow. The molten copper is also tapped and fed into the copper recycling process, which allows copper and the precious metals contained to be recovered from the melt.
- the copper bath can optionally also be cleaned by blowing in oxygen directly in the melting unit.
- the resulting slag can be given up at the beginning of the process due to the high copper content together with the copper scrap.
- An old copper block is heated in a smelting unit.
- solidified residual copper melt from the previous treatment can be used for this purpose.
- the copper melt was prepared as in variant 1 by melting of copper-containing waste material.
- the starting materials to be treated are added in layers to the copper block.
- the charging may begin immediately after solidification of the copper bath surface.
- the heat of the cooling copper bath can be used to vaporize metal chlorides present in the feeds.
- a halogenating atmosphere for example using a chlorine-containing purge gas.
- the purge gas is inflated from the top of the residues.
- the residues can be roasted with chlorine- or chloride-containing substances under reducing conditions.
- metal chlorides can be evaporated from the starting materials.
- the gas phase can be purified in the usual way, with the metal chlorides being retained in filters.
- the recovery of the heavy metals can be done in a known manner (electrolysis, extraction).
- the remaining metal compounds in the starting materials can be reduced by subsequent purification under reducing. Conditions are removed. For this purpose, the starting materials and the solidified copper melt are melted. Reducing agent is introduced via lances in the copper bath (see variant 1).
- the copper melt and the slag can be further treated as in variant 1.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2006287095A AU2006287095A1 (en) | 2005-09-01 | 2006-08-17 | Method for separating impurities out of feed stock in copper melts |
US12/065,354 US20090217785A1 (en) | 2005-09-01 | 2006-08-17 | Method for separating impurities out of feed stock in copper melts |
EP06774744A EP1917369A1 (de) | 2005-09-01 | 2006-08-17 | Verfahren zum abtrennen von verunreinigungen aus einsatzstoffen in kupferschmelzen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0143305A AT502396B1 (de) | 2005-09-01 | 2005-09-01 | Verfahren zum abtrennen von verunreinigungen aus einsatzstoffen |
ATA1433/2005 | 2005-09-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007025317A1 true WO2007025317A1 (de) | 2007-03-08 |
Family
ID=37101870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT2006/000343 WO2007025317A1 (de) | 2005-09-01 | 2006-08-17 | Verfahren zum abtrennen von verunreinigungen aus einsatzstoffenin kupferschmelzen |
Country Status (7)
Country | Link |
---|---|
US (1) | US20090217785A1 (de) |
EP (1) | EP1917369A1 (de) |
CN (1) | CN101258252A (de) |
AT (1) | AT502396B1 (de) |
AU (1) | AU2006287095A1 (de) |
RU (1) | RU2008110996A (de) |
WO (1) | WO2007025317A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2763939A1 (en) | 2009-05-29 | 2010-12-02 | Pearl Therapeutics, Inc. | Compositions for pulmonary delivery of long-acting muscarinic antagonists and long-acting b2 adrenergic receptor agonists and associated methods and systems |
PT3087208T (pt) * | 2013-12-23 | 2018-01-19 | Umicore Nv | Processo para reciclar pilhas de ião li |
EP3191610A4 (de) * | 2014-09-09 | 2018-09-12 | Jalbout, Abraham, Fouad | System, vorrichtung und verfahren zur laugung von metall und speichern von wärmeenergie während einer metallextraktion |
CN113265534B (zh) * | 2021-04-14 | 2023-03-31 | 嘉峪关宏电铁合金有限责任公司 | 一种低品铬铁渣再利用生产工艺 |
CN114574707A (zh) * | 2022-04-16 | 2022-06-03 | 中铜东南铜业有限公司 | 一种铜冶炼过程中的渣型优化剂及其制备方法 |
CN115074538B (zh) * | 2022-07-08 | 2023-11-03 | 中科亨顺科技有限公司 | 一种废铜回收用冶炼装置及其冶炼方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3682623A (en) * | 1970-10-14 | 1972-08-08 | Metallo Chimique Sa | Copper refining process |
US4606760A (en) * | 1985-05-03 | 1986-08-19 | Huron Valley Steel Corp. | Method and apparatus for simultaneously separating volatile and non-volatile metals |
US4701217A (en) * | 1986-11-06 | 1987-10-20 | University Of Birmingham | Smelting reduction |
WO1997029214A1 (de) * | 1996-02-08 | 1997-08-14 | 'holderbank' Financiere Glarus Ag | Verfahren zum abtrennen von kupfer und schwermetallen aus müllverbrennungsrückständen und -schlacken |
US6293993B1 (en) * | 1997-04-17 | 2001-09-25 | Trefimetaux | Method for recycling brass foundry waste |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2941225A1 (de) * | 1979-10-11 | 1981-04-23 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Verfahren und vorrichtung zur pyrometallurgischen gewinnung von kupfer |
FI67727C (fi) * | 1983-06-15 | 1985-05-10 | Outokumpu Oy | Foerfarande foer att tillverka raokoppar |
CA1322659C (en) * | 1987-03-23 | 1993-10-05 | Samuel Walton Marcuson | Pyrometallurgical copper refining |
-
2005
- 2005-09-01 AT AT0143305A patent/AT502396B1/de not_active IP Right Cessation
-
2006
- 2006-08-17 RU RU2008110996/02A patent/RU2008110996A/ru not_active Application Discontinuation
- 2006-08-17 EP EP06774744A patent/EP1917369A1/de not_active Ceased
- 2006-08-17 US US12/065,354 patent/US20090217785A1/en not_active Abandoned
- 2006-08-17 CN CNA2006800322846A patent/CN101258252A/zh active Pending
- 2006-08-17 AU AU2006287095A patent/AU2006287095A1/en not_active Abandoned
- 2006-08-17 WO PCT/AT2006/000343 patent/WO2007025317A1/de active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3682623A (en) * | 1970-10-14 | 1972-08-08 | Metallo Chimique Sa | Copper refining process |
US4606760A (en) * | 1985-05-03 | 1986-08-19 | Huron Valley Steel Corp. | Method and apparatus for simultaneously separating volatile and non-volatile metals |
US4701217A (en) * | 1986-11-06 | 1987-10-20 | University Of Birmingham | Smelting reduction |
WO1997029214A1 (de) * | 1996-02-08 | 1997-08-14 | 'holderbank' Financiere Glarus Ag | Verfahren zum abtrennen von kupfer und schwermetallen aus müllverbrennungsrückständen und -schlacken |
US6293993B1 (en) * | 1997-04-17 | 2001-09-25 | Trefimetaux | Method for recycling brass foundry waste |
Non-Patent Citations (2)
Title |
---|
DR. HELMUT ANTREKOWITSCH: "Metallrecycling", VORLESUNG 520004 (SS 2001), 2001, Montanuniversität Leoben, Österreich, pages 107 - 116, XP002404092 * |
PROF. PETER PASCHEN: "Metallhüttenkunde II", VORLESUNG 520010 (SS 2001), 2001, Montanuniversität Leoben, Österreich, pages 16 - 16, XP002404093 * |
Also Published As
Publication number | Publication date |
---|---|
AU2006287095A1 (en) | 2007-03-08 |
EP1917369A1 (de) | 2008-05-07 |
RU2008110996A (ru) | 2009-10-10 |
AT502396B1 (de) | 2007-03-15 |
AT502396A4 (de) | 2007-03-15 |
CN101258252A (zh) | 2008-09-03 |
US20090217785A1 (en) | 2009-09-03 |
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