CN101258252A - Method for separating impurities out of feed stock in copper melts - Google Patents
Method for separating impurities out of feed stock in copper melts Download PDFInfo
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- CN101258252A CN101258252A CNA2006800322846A CN200680032284A CN101258252A CN 101258252 A CN101258252 A CN 101258252A CN A2006800322846 A CNA2006800322846 A CN A2006800322846A CN 200680032284 A CN200680032284 A CN 200680032284A CN 101258252 A CN101258252 A CN 101258252A
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- copper
- charging
- melts
- slag
- clean
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- 239000010949 copper Substances 0.000 title claims abstract description 95
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims abstract description 55
- 239000012535 impurity Substances 0.000 title claims abstract description 20
- 239000000155 melt Substances 0.000 title claims description 37
- 239000002893 slag Substances 0.000 claims abstract description 36
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 10
- 229910001510 metal chloride Inorganic materials 0.000 claims abstract description 10
- 239000011707 mineral Substances 0.000 claims abstract description 10
- 238000002844 melting Methods 0.000 claims abstract description 7
- 230000008018 melting Effects 0.000 claims abstract description 7
- 238000004064 recycling Methods 0.000 claims abstract description 7
- 239000003245 coal Substances 0.000 claims abstract description 6
- 239000000571 coke Substances 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 4
- 230000002829 reductive effect Effects 0.000 claims description 25
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- 239000002699 waste material Substances 0.000 claims description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 239000000428 dust Substances 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 6
- 238000004056 waste incineration Methods 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 4
- 238000010408 sweeping Methods 0.000 claims description 4
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 239000003039 volatile agent Substances 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims 1
- 238000001704 evaporation Methods 0.000 claims 1
- 239000003638 chemical reducing agent Substances 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- -1 dusts Substances 0.000 abstract 1
- 230000008016 vaporization Effects 0.000 abstract 1
- 235000010755 mineral Nutrition 0.000 description 6
- 229910001369 Brass Inorganic materials 0.000 description 4
- 229910000805 Pig iron Inorganic materials 0.000 description 4
- 239000010951 brass Substances 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 229910000906 Bronze Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000010974 bronze Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000003287 bathing Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004299 exfoliation Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910021591 Copper(I) chloride Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- 241000784732 Lycaena phlaeas Species 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000026030 halogenation Effects 0.000 description 1
- 238000005658 halogenation reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 239000005355 lead glass Substances 0.000 description 1
- HWSZZLVAJGOAAY-UHFFFAOYSA-L lead(II) chloride Chemical compound Cl[Pb]Cl HWSZZLVAJGOAAY-UHFFFAOYSA-L 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000010956 nickel silver Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
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
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
The invention relates to a method for separating impurities out of slags, dusts, minerals, preparation residues of minerals or of recyclings or remaining substances, subsequently called feed stock. In order to save energy and reduce costs, the inventive method is characterized by the combination of the following features: melting the feed stock containing the impurities; forming a copper melt; bring the feed stock into contact with the copper melt while adding reducing agents, preferably coke and/or coal; vaporizing, if required, existing volatile compounds such as metal chlorides; reducing metals of the feed stock more noble than copper in the copper melt, and; forming a slag with constituents of the feed stock to be purified that is less noble than copper.
Description
Technical field
The present invention relates to the method for separating impurity from the ore dressing resistates of slag, dust, mineral, mineral or recycle substance or residuals.All these materials to be clean are called as charging below.
Background technology
It is known learning treatment process for the fusion metallurgy of separating impurity purpose, wherein uses fusant to receive impurity.Among AT 412 283 B this class methods have been described.The purpose of described method is to form environmentally acceptable slag by ferruginous smelting resistates, and reclaim contained ferrous components.Wherein, the resistates in fusant or on it (Reststoffe) is by being dissolved in the carbon reduction in the fusant.Ferric oxide and other metal oxide are reduced and are received by fusant.The metal that is produced can be used as the surrogate of the pig iron of blast furnace production after dephosphorization, or the charging of producing as the high-quality steel when Cr/Ni content is high.The slag that is produced can be as the grog surrogate in the Cement industry.
According to WO 97/29214A, the resistates of waste incineration or pyrolytic decomposition and the slag material with chloride or chloride under reductive condition is heated to 650 ℃, and wherein volatile metal chloride is as heavy metal chloride (PbCl
2, ZnCl
2, CuCl
2) enter gas phase.The solid residue that stays mixes with liquid steel slag or kalkmergel lime.The mixing slag is reduced by the turbulent flow of iron bath.In this process, produce synthetic blast furnace slag and the saturated iron alloy of carbon with hydraulic characteristic.Resulting iron alloy is represented the charging of steel industry.Perhaps, can obtain carbon-free highly enriched ferrochrome by the classification reduction.
JP 11207288 has described the melting method that is used for the treating refuse incinerating residue equally.Wherein, in electric arc furnace, incinerating residue is loaded into basically in the metal bath that forms by iron.Formed slag blanket thus.Take out together continuously in slag and metal and the importing water-bath.Separate with magnetic separator.Metal comprises many relatively copper and can be used as the copper raw material use.
In described method, proposed in steel industry to use and mixed the fusant of impurity, and be unfavorable for the metal that jumps not as ironwork such as the enrichment of copper or zinc.These metals can not be removed in the mode of economy and when surpassing certain limit content the continuation of fusant be used and exert an influence.The pig iron of the high value of for example having used according to AT 412 283 B is bathed and is handled (Roheisenbadvorlage), and its resistates after handling contains inactive metallic impurity.This quality deteriorated can cause it not to be applied in the steel industry again.
Bathe in the processing at the pig iron, the oxidation operation scheme has unfavorable effect.Thus, be dissolved in carbon in the pig iron with CO/CO
2Form emit, therefore and melt temperature rises to 1500 ℃.Melt solidifies the necessary obviously rising of required processing temperature during for fear of the adding resistates.So high temperature has produced disadvantageous effect to the energy requirement of refractorily lined and rising.
The objective of the invention is to, avoid these shortcomings and difficulty, and the method for separating impurity from the ore dressing resistates of slag, dust, mineral, mineral or recycle substance or residuals (below be called charging) is provided, avoids by method that extends to the long period or the quality deteriorated that causes by a plurality of technological cycle of carrying out one by one.In addition, described method can save energy with respect to currently known methods, and can therefore cut down expenses, and the reaction vessel lining of implementing described method has long work-ing life.
Summary of the invention
Above-mentioned purpose realizes by the combination of following technical characterictic:
-fusing comprises the charging of impurity,
-formation copper melts,
-charging of having melted is contacted under the condition of adding reductive agent with copper melts, preferred coke of described reductive agent and/or coal,
-randomly evaporate the volatile compound that exists, as metal chloride,
The metal that jumps not as work in copper in the-reduction copper melts, and
-form and to contain in the charging to be clean than the jump slag of composition of work in copper.
Described copper melts preferably contains at least 50% copper.
The advantage of using copper melts is the impurity that can not remove again in the fusant easily can be removed from copper melts in common copper recirculating process.Can will mix the copper melts of impurity in this way through handling the copper that becomes high value again.The special benefits of using copper melts is, to compare fusing point lower with fusant.Therefore, at first regulate the technological temperature of charging according to the fusing point of slag.Thereby can remain under the lower technological temperature the described method of implementing, realize than lower power intake with to the maintenance of the refractory lining of the smelting vessel of implementing described method.
Copper melts can also randomly clean by directly being blown into oxygen in the metallurgical tank of implementing described method.Thereby make the impurity slagging that jumps than work in copper.Because the copper content of consequent slag is higher, can when beginning, subsequent handling be used for the impurity of separating feed.
The inventive method is particularly advantageous to be, uses copper scrap and prepares copper melts, because copper scrap will be sent into the copper process recycling originally.
Copper melts can also prepare by melting copper bearing waste materials.For this reason, use new waste material (processing scrap) and/or the waste material that forms copper and/or copper alloy.As mentioned above, the part of copper melts can be blown into the slag formation that oxygen produces by adding in copper melts.
Preferably, the slag of charging formation to be clean is used for producing grog surrogate and/or sandblast agent with auxiliary agent and/or waste material.
Will from waste incineration and from the dust of Iron And Steel Industry as charging to be clean.
The anode slag mud that produces in the process recycling of copper during advantageously with electrorefining is as charging to be clean.
As mentioned above, preferably use coke and/or coal reductive agent as charging, yet, can also use the material that jumps than work in copper as reductive agent, such as metallic scrap, for example aluminiferous waste material and/or ferruginous waste material.
Use copper melts, different atmosphere can advantageously be set above copper melts; So both reductive condition can be set, also oxidizing condition can be set.Described atmosphere can also change in described process, thus the material of not expecting in the separating impurity targetedly.
Charging to be clean is preferably injected (eingeduest) copper melts with reductive agent.
The interpolation of the formation of copper melts and the fusing of charging and reductive agent can be carried out simultaneously or successively carry out one by one.Therefore, for example charging to be clean can also be placed on the copper billet that does not also have fusing of heat, preferably place, in this process, randomly evaporate the metal chloride that exists in the mode of layer, halogenated atmosphere wherein preferably is set, preferably uses chloride sweeping gas.
Subsequently copper billet and charging to be clean are melted together, and in melt, add reductive agent, preferably inject with jet pipe.
Describe method of the present invention in detail according to following description to two kinds of schemes.These two kinds of schemes show the approach of application copper melts feasible on the principle.
Scheme 1
Utilize jet pipe that pending charging is infused in copper melts in the metallurgical tank with reductive agent.For example can use coal or coke as reductive agent.
Table 1: reductive agent
| Component | Coke [%] | Coal [%] |
| C | 91,15 | 87,10 |
| SiO 2 | 2,88 | 2,20 |
| Al 2O 3 | 1,g1 | 1,25 |
| CaO | 0,36 | 0,39 |
| MgO | 0,12 | 0,09 |
The metal that jumps than work in copper in the charging plays the effect of reductive agent equally.In addition, metallic reducing agent can add with the metallic scrap form, for example aluminium or iron fragment, and wherein the share of aluminium or iron is preferably at least 80%.
Described copper melts prepares by melting copper bearing waste materials.What at first consider is the new waste material (processing scrap) or the waste material of copper and copper alloy (for example brass, bronze, red brass (Rotguss), German silver (Neusilber)), comprises fragment and dust.Preferred copper content is at least 50% in the charging.Provided the composition of brass waste material and bronze scrap in the table 2 for example.
Table 2: cupric waste materials
| Element | Brass waste material [%] | Bronze scrap [%] |
| Cu | 60,19 | 94,49 |
| Zn | 37,62 | |
| Pb | 0,63 | |
| Sn | 0,42 | 4,77 |
| Fe | 0,2 | |
| Al | 0,21 | 0,039 |
| Ni | 0,13 | |
| Si | 0,023 | 0,016 |
| Sb | 0,006 | |
| Mn | 0,038 | 0,0023 |
| P | 0,007 | 0,18 |
| As | 0,015 | |
| S | 0,21 | |
| Pb | 0,008 |
Utilize method of the present invention, can handle the dust that mixes impurity, slag and the mineral of different sources, especially from the dust of waste incineration with from the slag or the dust of Iron And Steel Industry.In addition, can also use lead glass or colored glass rubbish, the processing residue of spent catalyst and mineral is such as roasting residue (burning consumption (resistates) (Abbrand) such as pyrite).Infiltration has the stove exfoliation material of inert metal (for example Pt, Ag, Au) can handle with method of the present invention equally.
In the process recycling of copper, inert metal (Pt, Ag, Au) is present in the anode slag mud of electrorefining generation.Can from above-mentioned anode slag mud, reclaim and utilize inert metal by method of the present invention.Therefore, contain the charging of inert metal, play decisive role such as the improvement that above-mentioned stove exfoliation material is smelted economical efficiency to copper.
Listed exemplary composition in the following form:
Table 3: from the dust of waste incineration
| Element | Flying dust [mg/kg] from waste incineration | Flying dust [mg/kg] from the specific refuse burning |
| Ca | 107000 | 47985 |
| Cl | 74000 | 33370 |
| Si | 160000 | 54804 |
| Mg | 15000 | 8041 |
| Fe | 25000 | 43763 |
| Al | 71000 | 17302 |
| K | 36000 | 47485 |
| Na | 31000 | 154364 |
| Zn | 28000 | 68166 |
| S | 26000 | 81929 |
| Pb | 11000 | 19527 |
| Ti | 8700 | 18332 |
| Mn | 1300 | 1992 |
| Ba | 1700 | 124 |
| Sn | 1400 | 2741 |
| Cu | 1200 | 6340 |
Table 4: from the slag and the dust of Iron And Steel Industry
| Component | LD-slag [%] | EAF-dust [%] | Blast furnace dust [%] | Converter dust [%] |
| CaO | 50 | 5-12 | 6,3 | 3-5 |
| SiO2 | 15 | 6.3 | ||
| Al2O3 | ＜2 | 2 | ||
| MgO | ＜3 | |||
| Fe | 16 | 20-30 | 34,4 | 50-70 |
| MnO | ＜4 | |||
| P2O5 | ＜2 | |||
| Cr ges | ＜1 | 0,1-0.4 | ||
| C | 28,g | 20-50 | ||
| Pb | 1-8 | 0,07 | 0,2-0,5 | |
| Zn | 15-35 | 0,2 | 1-3 |
Table 5: from the resistates of other economic department
*.... according to glass types, PbO content can be 3～32%
The component of described charging is divided into copper bath, slag or waste gas by corresponding composition by treating processes.
The metal that jumps not as work in copper in the described charging is reduced, and stays in the copper melts.Active composition enters the slag of melt top.Volatile compound in the charging, such as metal chloride, especially zinc chloride and lead chloride are evaporated.
Last in treating processes, described slag and auxiliary agent or waste material can utilize again becomes grog surrogate or sandblast agent.After this, described slag is emitted and is loaded in the Drygranulatemachine.Can followingly carry out granulation, promptly by slag stream (Schlackenstrahl) is ground into the meticulous granule that hyaloid solidifies in air-flow on rotation mill (Rotationsteller).Equally the copper process recycling is emitted and imported to described copper melts, thereby can regain copper and the inert metal that is comprised from described melt.
Described copper is bathed and randomly can also be purified by directly be blown into oxygen in melting equipment.In this process, the impurity conversion slagging that jumps than work in copper.Because the copper content of consequent slag is higher, can add with copper scrap when technology begins.
Scheme 2
Heating copper scrap piece in melting equipment.At this advantageously, can utilize the residual copper melt that solidifies in the previous processed.Prepare described copper melts according to scheme 1 by fusing cupric waste materials.On copper billet, place pending charging in the mode of layer.Under the situation of using the residual copper melt, can after bathing surface solidification, copper directly begin filling.The heat that therefore can utilize cooling copper to bathe evaporates the metal chloride that exists in the charging.Can use halogenation atmosphere to support at this, for example utilize chloride sweeping gas.Described sweeping gas is blown on the residue from above.Perhaps, described residue can with material roasting under reductive condition of chloride or chloride.
Can evaporate the metal chloride in the charging thus.Can purify gas phase with common method, wherein in strainer, reclaim metal chloride.The recovery of heavy metal can be carried out (electrolysis, extraction) according to currently known methods.
Remaining metallic compound can be removed by the purification under reductive condition subsequently in the charging.For this reason, with charging and the fusing of the copper melts that solidifies.In bathing, copper injects reductive agent (square case 1) by jet pipe.
Copper melts and slag can be handled as continuation as described in the scheme 1.
Claims (16)
1. ore dressing resistates or recycle substance or residuals from slag, dust, mineral, mineral are called the method for separating impurity in the charging below, it is characterized in that the combination of following technical characterictic:
-fusing comprises the charging of impurity,
-formation copper melts,
-charging of having melted is contacted under the condition of adding reductive agent with copper melts, preferred coke of described reductive agent and/or coal,
-randomly evaporate the volatile compound that exists, as metal chloride,
The metal that jumps not as work in copper in the-reduction copper melts, and
-form and to contain in the charging to be clean than the jump slag of composition of work in copper.
2. according to the method for claim 1, it is characterized in that, form the copper melts that contains at least 50% copper.
3. according to the method for claim 1 or 2, it is characterized in that, make described copper melts after the metal that jumps not as work in copper of charging, experience the copper process recycling in reduction and receipt source.
4. according to the method for claim 3, it is characterized in that described copper melts comes recirculation by being blown into oxygen.
5. according to each method of claim 1～4, it is characterized in that, the formation of described copper melts comprises, the fusing copper scrap and/or, the waste material or the new waste material of melting copper and/or copper alloy and/or add be blown into the part of the copper melts that slag that oxygen produces forms in copper melts.
6. according to each method of claim 1～5, it is characterized in that slag that charging to be clean forms and auxiliary agent and/or waste material be treated together to be used for producing grog surrogate and/or sandblast agent.
7. according to each method of claim 1～6, it is characterized in that, use dust from waste incineration as charging to be clean.
8. according to each method of claim 1～7, it is characterized in that, use dust from Iron And Steel Industry as charging to be clean.
9. according to each method of claim 1～8, it is characterized in that the anode slag mud that produces in the process recycling of copper when using electrorefining is as charging to be clean.
10. according to each method of claim 1～9, it is characterized in that, use the material that jumps than work in copper as reductive agent.
11. according to each method of claim 1～10, it is characterized in that, use metallic scrap as reductive agent, as aluminiferous waste material and/or ferruginous waste material.
12. according to each method of claim 1～11, it is characterized in that, reduction or oxidizing atmosphere be set above copper melts.
13. according to each method of claim 1～12, it is characterized in that, charging to be clean injected copper melts with reductive agent.
14., it is characterized in that according to each method of claim 1～12, charging to be clean is positioned on the still unfused copper billet of heat, preferably place the metal chloride that exists of evaporation randomly in this process in the mode of layer.
15. the method according to claim 14 is characterized in that, halogenated atmosphere is set, and preferably uses chloride sweeping gas.
16. the method according to claim 14 or 15 is characterized in that, subsequently copper billet and charging to be clean is melted together, and add reductive agent in melt, preferably injects with jet pipe.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA1433/2005 | 2005-09-01 | ||
| AT0143305A AT502396B1 (en) | 2005-09-01 | 2005-09-01 | METHOD FOR REMOVING CONTAMINANTS FROM INGREDIENTS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101258252A true CN101258252A (en) | 2008-09-03 |
Family
ID=37101870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800322846A Pending CN101258252A (en) | 2005-09-01 | 2006-08-17 | Method for separating impurities out of feed stock in copper melts |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20090217785A1 (en) |
| EP (1) | EP1917369A1 (en) |
| CN (1) | CN101258252A (en) |
| AT (1) | AT502396B1 (en) |
| AU (1) | AU2006287095A1 (en) |
| RU (1) | RU2008110996A (en) |
| WO (1) | WO2007025317A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105849290A (en) * | 2013-12-23 | 2016-08-10 | 尤米科尔公司 | Process for recycling li-ion batteries |
| CN107109524A (en) * | 2014-09-09 | 2017-08-29 | 亚利桑那大学董事会 | Systems, devices and methods for the heat energy during extracting metal and storage METAL EXTRACTION |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI792140B (en) | 2009-05-29 | 2023-02-11 | 美商沛爾醫療股份有限公司 | Compositions, methods and systems for respiratory delivery of two or more active agents |
| CN113265534B (en) * | 2021-04-14 | 2023-03-31 | 嘉峪关宏电铁合金有限责任公司 | Low-grade ferrochromium slag recycling production process |
| CN114574707B (en) * | 2022-04-16 | 2024-08-20 | 中铜东南铜业有限公司 | Slag type optimizing agent in copper smelting process and preparation method thereof |
| CN115074538B (en) * | 2022-07-08 | 2023-11-03 | 中科亨顺科技有限公司 | Smelting device for waste copper recovery and smelting method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3682623A (en) * | 1970-10-14 | 1972-08-08 | Metallo Chimique Sa | Copper refining process |
| DE2941225A1 (en) * | 1979-10-11 | 1981-04-23 | Klöckner-Humboldt-Deutz AG, 5000 Köln | METHOD AND DEVICE FOR PYROMETALLURGIC PRODUCTION OF COPPER |
| FI67727C (en) * | 1983-06-15 | 1985-05-10 | Outokumpu Oy | FOERFARANDE FOER ATT TILLVERKA RAOKOPPAR |
| 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 |
| CA1322659C (en) * | 1987-03-23 | 1993-10-05 | Samuel Walton Marcuson | Pyrometallurgical copper refining |
| AT405191B (en) * | 1996-02-08 | 1999-06-25 | Holderbank Financ Glarus | METHOD FOR SEPARATING COPPER AND HEAVY METALS FROM WASTE COMBUSTION RESIDUES AND SLAGS |
| FR2762328B1 (en) * | 1997-04-17 | 1999-05-28 | Trefimetaux | PROCESS FOR RECYCLING WASTE FROM BRASS FOUNDRY |
-
2005
- 2005-09-01 AT AT0143305A patent/AT502396B1/en not_active IP Right Cessation
-
2006
- 2006-08-17 AU AU2006287095A patent/AU2006287095A1/en not_active Abandoned
- 2006-08-17 WO PCT/AT2006/000343 patent/WO2007025317A1/en active Application Filing
- 2006-08-17 EP EP06774744A patent/EP1917369A1/en not_active Ceased
- 2006-08-17 US US12/065,354 patent/US20090217785A1/en not_active Abandoned
- 2006-08-17 RU RU2008110996/02A patent/RU2008110996A/en not_active Application Discontinuation
- 2006-08-17 CN CNA2006800322846A patent/CN101258252A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105849290A (en) * | 2013-12-23 | 2016-08-10 | 尤米科尔公司 | Process for recycling li-ion batteries |
| US10164302B2 (en) | 2013-12-23 | 2018-12-25 | Umicore | Process for recycling li-ion batteries |
| CN113774222A (en) * | 2013-12-23 | 2021-12-10 | 尤米科尔公司 | Recycling method of lithium ion battery |
| CN107109524A (en) * | 2014-09-09 | 2017-08-29 | 亚利桑那大学董事会 | Systems, devices and methods for the heat energy during extracting metal and storage METAL EXTRACTION |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007025317A1 (en) | 2007-03-08 |
| US20090217785A1 (en) | 2009-09-03 |
| RU2008110996A (en) | 2009-10-10 |
| AU2006287095A1 (en) | 2007-03-08 |
| AT502396A4 (en) | 2007-03-15 |
| AT502396B1 (en) | 2007-03-15 |
| EP1917369A1 (en) | 2008-05-07 |
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