CN106929684B - A kind of Copper making electric dilution slag recycling copper, the property-modifying additive of iron and application - Google Patents
A kind of Copper making electric dilution slag recycling copper, the property-modifying additive of iron and application Download PDFInfo
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- CN106929684B CN106929684B CN201710152250.0A CN201710152250A CN106929684B CN 106929684 B CN106929684 B CN 106929684B CN 201710152250 A CN201710152250 A CN 201710152250A CN 106929684 B CN106929684 B CN 106929684B
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 171
- 239000010949 copper Substances 0.000 title claims abstract description 119
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 116
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 85
- 239000002893 slag Substances 0.000 title claims abstract description 68
- 238000010790 dilution Methods 0.000 title claims abstract description 35
- 239000012895 dilution Substances 0.000 title claims abstract description 35
- 239000000654 additive Substances 0.000 title claims abstract description 30
- 230000000996 additive effect Effects 0.000 title claims abstract description 28
- 238000004064 recycling Methods 0.000 title claims abstract description 14
- 238000005188 flotation Methods 0.000 claims abstract description 23
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000007885 magnetic separation Methods 0.000 claims abstract description 19
- VASIZKWUTCETSD-UHFFFAOYSA-N oxomanganese Chemical compound [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 claims abstract description 18
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000292 calcium oxide Substances 0.000 claims abstract description 10
- 235000012255 calcium oxide Nutrition 0.000 claims abstract description 10
- 235000002918 Fraxinus excelsior Nutrition 0.000 claims abstract description 9
- 239000002956 ash Substances 0.000 claims abstract description 9
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052951 chalcopyrite Inorganic materials 0.000 claims abstract description 9
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052683 pyrite Inorganic materials 0.000 claims abstract description 9
- 239000011028 pyrite Substances 0.000 claims abstract description 9
- 238000011084 recovery Methods 0.000 claims description 30
- 238000001816 cooling Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 9
- 238000010583 slow cooling Methods 0.000 claims description 9
- 229940056319 ferrosoferric oxide Drugs 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- DQMUQFUTDWISTM-UHFFFAOYSA-N O.[O-2].[Fe+2].[Fe+2].[O-2] Chemical compound O.[O-2].[Fe+2].[Fe+2].[O-2] DQMUQFUTDWISTM-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000012141 concentrate Substances 0.000 abstract description 31
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 8
- 239000011707 mineral Substances 0.000 abstract description 8
- 235000010755 mineral Nutrition 0.000 abstract description 8
- 229910052840 fayalite Inorganic materials 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 241000722270 Regulus Species 0.000 abstract description 3
- 238000002425 crystallisation Methods 0.000 abstract description 3
- 230000008025 crystallization Effects 0.000 abstract description 3
- 230000006698 induction Effects 0.000 abstract description 3
- 238000009867 copper metallurgy Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000003723 Smelting Methods 0.000 description 10
- 238000007792 addition Methods 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 6
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- TUZCOAQWCRRVIP-UHFFFAOYSA-N butoxymethanedithioic acid Chemical compound CCCCOC(S)=S TUZCOAQWCRRVIP-UHFFFAOYSA-N 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052609 olivine Inorganic materials 0.000 description 2
- 239000010450 olivine Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- 208000035126 Facies Diseases 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910001608 iron mineral Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004073 vulcanization Methods 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
- 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
- C22B7/04—Working-up slag
-
- 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
-
- 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
Abstract
The present invention relates to a kind of Copper making electric dilution slag recycling copper, the property-modifying additive of iron and application, property-modifying additives to be grouped as by following groups by mass percentage：The oxide 10 20% of quick lime 40 50%, manganese monoxide 10 15%, pyrite 10 15%, chalcopyrite 5 15% and iron adds up to 100%.Application of property-modifying additive during Copper making electric dilution slag recycles copper, iron, by the 8 20% addition property-modifying additives of copper ashes quality.The present invention realizes the ore phase reconstruction of iron and copper target mineral under the high temperature latent heat for making full use of Copper making electric dilution slag.Have the function of that fayalite is modified, initial seed induction crystallization, stablizes copper matte regulus mineral.Modified slag can utilize flotation magnetic separation separating technology, produce the copper concentrate for copper metallurgy and the magnetite concentrate for ironmaking, to realize efficiently separating and recycling for iron and copper in Copper making electric dilution slag, economize on resources and energy consumption.
Description
Technical field
The present invention relates to it is a kind of for Copper making electric dilution slag for comprehensive recycling copper, iron high temperature modified additive and answer
With belonging to metallurgical, industrial waste residue resourceization utilizes technical field.
Background technology
In the world there are about 80% copper produced by pyrometallurgical smelting process, remaining 20% is obtained with hydrometallurgy, is led to
Often 1 ton of matte of production can about generate 2-3 tons of copper ashes.The copper in 97% or more China is obtained by pyrometallurgical smelting, as reverberatory furnace is molten
Refining, Flash Smelting Furnace melting, electro-smelting and converter melting etc..China's refined copper yield is up to 7,960,000 tons within 2015, at the same time often
Year 15000000 tons of output or more copper ashes, accumulative quantum of output have been more than 1.2 hundred million tons.
Contain a large amount of available resources in copper ashes, the content of valuable metal such as copper, iron etc., wherein iron is up to 40% or so, far
Far above the minable grade of China's iron ore（About 27%）；Copper grade 1% or so has important utility value.But iron in copper ashes
It is mainly distributed in olivine and magnetic iron ore phase, and copper is mainly with tiny matte particle dispersion in slag.Copper ashes Minerals are mutual
Embedding cloth and crystal grain is tiny, it is very tired such as copper, the iron in flotation, gravity treatment and magnetic separation recovery slag according to conventional separation techniques
Difficulty, iron recovery only 30% or so, for the copper recovery also only 65-75% of electric dilution slag.In addition, Copper making electric dilution slag
In high temperature fused state, at present only with slow cooling or quenching, a large amount of latent heat are not utilized.
A large amount of research has been carried out to the recycling of copper, iron in copper ashes both at home and abroad, but it is poor by using copper smelting slag electric furnace
Latent heat when dissolving stove high temperature modified be but rarely reported.
Invention content
The object of the present invention is to provide a kind of high temperature modified additions for recycling copper, iron for Copper making electric dilution slag for comprehensive
Agent and application improve iron recovery and iron ore concentrate Iron grade while recycling copper.
The technical scheme is that：A kind of Copper making electric dilution slag recycles the property-modifying additive of copper, iron, by pressing matter
Following groups of amount percentages are grouped as：
Quick lime 40-50%,
Manganese monoxide 10-15%,
Pyrite 10-15%,
Chalcopyrite 5-15%, and
The oxide 10-20% of iron adds up to 100%.
In a specific embodiment, the oxide of the iron is at least one in ferroso-ferric oxide and di-iron trioxide
Kind.
Application of property-modifying additive during Copper making electric dilution slag recycles copper, iron, by the 8- of copper ashes quality
The 20% addition property-modifying additive.
In a specific embodiment, it is applied to Copper making electric dilution slag slow cooling-flotation and recovery of copper-magnetic separation recovery
In iron process.
In a specific embodiment, modified addition is added in the case where Copper making electric dilution slag is in high temperature fused state
Then agent carries out slow cooling processing.
In a specific embodiment, 1250-1350 DEG C of liquid slag temperature, 1-3 DEG C of slag cooling velocity/min, slow cooling
800 ~ 900 DEG C of outlet temperature.
The present invention be directed in Copper making electric dilution slag iron mainly by do not have in the form of the fayalite of washability exist, iron
There is the problem having adverse effect in olivine transition, be based on Physical Chemistry of Metallurgy principle, design more work(to copper matte regulus mineralogical stabiliser
The high temperature modified additive of energy, high temperature fused state when being come out of the stove using copper smelting slag electric dilution are promoted in conjunction with phase transformation, crystallization rule
Into the mineral of target（Matte, magnetic iron ore）Generation and crystal grain grow up, be subsequent recycling iron and the good object phase item of copper creation
Part.
The mechanism of the present invention is briefly described as below：
Viscosity coefficient of dross can be effectively reduced using manganese monoxide, improves the mobility of slag, copper, iron mineral is promoted to move
It moves, aggregation and crystal grain are grown up；It realizes reacting for calcium oxide and silicate mineral in the high temperature process using quick lime, effectively destroys
Fayalite object phase reduces fayalite and is formed, promotes the transition of fayalite phase in slag, promote the generation of magnetic iron ore；Profit
With the sulfurization of pyrite and chalcopyrite, trap copper sulfide, the copper oxide particle in slag, promote matte particle vulcanization,
Assemble, develop and grow up, is conducive to flotation and recovery of copper in subsequent handling；Utilize the ferrous combination in ferriferous oxide and slag so that
Fe clusters are enriched with to magnet mineral facies in slag, effectively increase the effect of magnetic separation recovery iron.As many as present invention function and service adds
Agent, which has, strengthens improvement slag fluidity, promotes triple work(that copper sulfide and magnetic iron ore generate, induction valuable mineral crystal grain is grown up
Effect is that good condition is created in follow-up flotation and magnetic separation, improves copper, iron recovery and grade, final to realize the effective of copper and iron
Separation and recycling.
Iron grade 40% or so is handled using flotation-magnetic separation process, the Copper making electric dilution slag of copper grade 0.6-0.83%,
In the case where not adding any additive, it is only 52-54% to obtain magnetic separation of iron ore concentrate grade, and iron recovery is only 30-35%；Such as
By the compound additive of the 8-20% addition present invention of Copper making electric dilution slag amount, magnetic separation of iron ore concentrate grade is obtained up to 56-
58%, iron recovery is more than 60% good index, while can ensure that copper recovery does not reduce or slightly improves in floatation process.
By the effect of compound additive, copper, iron useful element contained by Copper making electric dilution slag can be comprehensively utilized, and be compared
When without using additive, the iron ore concentrate Iron grade of acquisition improves 4-5%, and iron recovery improves about 30%.
In conclusion instant component distribution rationally, it is simple production process, easy to use, making full use of Copper making electric
The ore phase reconstruction of iron and copper target mineral is realized under the high temperature latent heat of stove dilution slag.The modified, initial seed with fayalite
Induction crystallization, the function of stablizing copper matte regulus mineral.Modified slag can utilize flotation-magnetic separation separating technology, produce the copper for copper metallurgy
Concentrate and magnetite concentrate for ironmaking efficiently separate and recycle profit to realize iron and copper in Copper making electric dilution slag
With economizing on resources and energy consumption.
The technology of the present invention plays important directive function using secondary resource to efficient and rational, and to alleviating China's steel
The trend of raw material of industry shortage promotes the sustainable development of steel and iron industry or even Copper Processing Industry to be of great practical significance.
Specific implementation mode
Technical solution of the present invention is explained in detail below by way of specific embodiment and contrast experiment.
The property-modifying additive of the present invention uses following preparation methods：By quick lime, manganese monoxide, pyrite, chalcopyrite
It after being dried with ferriferous oxide, is then weighed by the quality proportioning, mixing is to get to compound additive.
Comparative example 1
To Iron grade 39.10% in Copper making electric dilution slag, copper grade 0.83% does not add any additive, using molten
The processing of slag slow cooling-flotation-magnetic separation process, obtains iron concentrate grade 54.46%, iron recovery 30.98%；Copper rough concentrate grade
6.76%, copper recovery 73.29%.
Embodiment 1
Iron grade 39.10% in Copper making electric dilution slag, copper grade 0.83% are compound by 9% addition of copper smelting slag quality
Additive（Quick lime 45%, manganese monoxide 15%, ferroso-ferric oxide 20%, pyrite 10%, chalcopyrite 10%）Slag modification is carried out,
For modified slag after slow cooling, broken, ore grinding, flotation obtains copper rough concentrate and flotation tailings, and flotation tailings passes through wet magnetic separation, obtains
To iron ore concentrate and magnetic tailing.In 1350 DEG C of temperature, 1.5 DEG C/min of cooling velocity, under conditions of cooling 900 DEG C of outlet temperature into
Row is modified, and modified slag is in Floatation of Copper condition：Mog -0.045mm 90.2%；Butyl xanthate 200g/t；Inhibitor dosage
3.6kg/t；Flotation time 5min；Under conditions of magnetic separation strength 1700Gs, copper rough concentrate grade 11.04%, copper recovery are obtained
71.45%, the iron ore concentrate of Iron grade 56.88%, iron recovery 63.52%.
Embodiment 2
Iron grade 39.10% in Copper making electric dilution slag, copper grade 0.83% are multiple by 15% addition of copper smelting slag quality
Close additive（Quick lime 50%, manganese monoxide 10%, di-iron trioxide 15%, pyrite 15%, chalcopyrite 10%）Slag is carried out to change
Property, for modified slag after slow cooling, broken, ore grinding, flotation obtains copper rough concentrate and flotation tailings, and flotation tailings passes through wet type magnetic
Choosing, obtains iron ore concentrate and magnetic tailing.In 1350 DEG C of melting temperature, 1.5 DEG C/min of cooling velocity, cooling 900 DEG C of outlet temperature
Under conditions of be modified, modified slag is in Floatation of Copper condition：Mog -0.045mm 90%；Butyl xanthate 200g/t；Inhibitor
Dosage 3.6kg/t；Flotation time 5min；Under conditions of magnetic separation strength 1700Gs, copper rough concentrate grade 10.88%, copper recycling are obtained
Rate 72.35%, the iron ore concentrate of Iron grade 56.54%, iron recovery 66.75%.
Embodiment 3
Iron grade 39.10% in Copper making electric dilution slag, copper grade 0.83% are multiple by 20% addition of copper smelting slag quality
Close additive（Quick lime 40%, manganese monoxide 15%, ferroso-ferric oxide and di-iron trioxide 15%, pyrite 15%, chalcopyrite 15%）
Slag modification is carried out, for modified slag after slow cooling, broken, ore grinding, flotation obtains copper rough concentrate and flotation tailings, flotation tailings warp
Wet magnetic separation is crossed, iron ore concentrate and magnetic tailing are obtained.In 1350 DEG C of melting temperature, 1 DEG C/min of cooling velocity, cooling outlet temperature
It is modified under conditions of 900 DEG C, modified slag is in Floatation of Copper condition：Mog -0.045mm 90%；Butyl xanthate 200g/t；Suppression
Preparation dosage 3.6kg/t；Flotation time 5min；Under conditions of magnetic separation strength 1700Gs, Cu Concentrate Grade 11.98% is obtained, copper returns
Yield 74.68%, the iron ore concentrate of Iron grade 56.02%, iron recovery 60.21%.
Comparative example 2
To Iron grade 40.21% in Copper making electric dilution slag, copper grade 0.60% does not add any additive, using molten
The processing of slag slow cooling-flotation-magnetic separation process, obtains iron concentrate grade 54.32%, iron recovery 32.20%；Cu Concentrate Grade 18.8%,
Copper recovery 66.41%.
Embodiment 4
Iron grade 40.21% in Copper making electric dilution slag, copper grade 0.60% are multiple by 16% addition of copper smelting slag quality
Close additive（Quick lime 50%, manganese monoxide 10%, ferroso-ferric oxide 15%, pyrite 15%, chalcopyrite 10%）Slag is carried out to change
Property, for modified slag after slow cooling, broken, ore grinding, flotation obtains copper rough concentrate and flotation tailings, and flotation tailings passes through wet type magnetic
Choosing, obtains iron ore concentrate and magnetic tailing.In 1300 DEG C of melting temperature, 1.5 DEG C/min of cooling velocity, cooling 900 DEG C of outlet temperature
Under conditions of be modified, modified slag is in Floatation of Copper condition：Mog -0.045mm 90%；Butyl xanthate 200g/t；Inhibitor
Dosage 3.6kg/t；Flotation time 5min；Under conditions of magnetic separation strength 1700Gs, Cu Concentrate Grade 21.60%, copper recovery are obtained
63.80%, the iron ore concentrate of Iron grade 56.40%, iron recovery 62.10%.
The data obtained from above-described embodiment：Compound additive using the present invention is applied in Copper making electric dilution
The technique of liquid slag ore phase reconstruction Recovering Copper, iron obtains iron concentrate grade and is more than 56%, and iron recovery reaches 60% or more
Good index, while copper rough concentrate copper grade is more than 10%, copper recovery is more than 71%.Compared with comparative example 1,2 corresponding datas, this
The compound additive of invention is applied in Copper making electric dilution liquid slag ore phase reconstruction-flotation and recovery of copper-magnetic separation recovery iron process
In, iron concentrate grade improves 4-5 percentage points, and iron recovery greatly improves 30 percentage points, and the recycling of copper is not substantially by shadow
It rings.Realize effective sorting of iron and copper and synthetical recovery in Copper making electric dilution slag.
Claims (6)
1. the property-modifying additive of a kind of Copper making electric dilution slag recycling copper, iron, it is characterised in that by by mass percentage
Following groups be grouped as：
Quick lime 40-50%,
Manganese monoxide 10-15%,
Pyrite 10-15%,
Chalcopyrite 5-15%, and
The oxide 10-20% of iron adds up to 100%.
2. the property-modifying additive of Copper making electric dilution slag recycling copper according to claim 1, iron, it is characterised in that institute
The oxide for stating iron is selected from least one of ferroso-ferric oxide and di-iron trioxide.
3. a kind of application of the property-modifying additive described in claims 1 or 2 during Copper making electric dilution slag recycles copper, iron,
It is characterized in that：The property-modifying additive is added by the 8-20% of copper ashes quality.
4. application according to claim 3, it is characterised in that：It is returned applied to Copper making electric dilution slag slow cooling-flotation
It receives in copper-magnetic separation recovery iron process.
5. application according to claim 4, it is characterised in that：In the case where Copper making electric dilution slag is in high temperature fused state
Property-modifying additive is added, slow cooling processing is then carried out.
6. application according to claim 5, it is characterised in that：1250-1350 DEG C of liquid slag temperature, slag cooling velocity 1-
3 DEG C/min, 800 ~ 900 DEG C of slow cooling outlet temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710152250.0A CN106929684B (en) | 2017-03-15 | 2017-03-15 | A kind of Copper making electric dilution slag recycling copper, the property-modifying additive of iron and application |
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| CN108728664B (en) * | 2018-04-27 | 2020-07-24 | 中南大学 | Method for strengthening dilution of copper smelting slag by waste iron oxide desulfurizer |
| CN109518007B (en) * | 2018-12-25 | 2020-11-06 | 北京科技大学 | Method for extracting cobalt-iron alloy from cobalt matte melt through external magnetic field induction |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4701217A (en) * | 1986-11-06 | 1987-10-20 | University Of Birmingham | Smelting reduction |
| CN102002598A (en) * | 2010-12-22 | 2011-04-06 | 东北大学 | Method for recovering copper and cobalt from cobalt-containing copper converter slag |
| CN102618675A (en) * | 2012-04-27 | 2012-08-01 | 四川省达州钢铁集团有限责任公司 | Slagging fusing assistant |
-
2017
- 2017-03-15 CN CN201710152250.0A patent/CN106929684B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4701217A (en) * | 1986-11-06 | 1987-10-20 | University Of Birmingham | Smelting reduction |
| CN102002598A (en) * | 2010-12-22 | 2011-04-06 | 东北大学 | Method for recovering copper and cobalt from cobalt-containing copper converter slag |
| CN102618675A (en) * | 2012-04-27 | 2012-08-01 | 四川省达州钢铁集团有限责任公司 | Slagging fusing assistant |
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