CN102864313B - Smelting method of natural copper mine - Google Patents
Smelting method of natural copper mine Download PDFInfo
- Publication number
- CN102864313B CN102864313B CN201110188222.7A CN201110188222A CN102864313B CN 102864313 B CN102864313 B CN 102864313B CN 201110188222 A CN201110188222 A CN 201110188222A CN 102864313 B CN102864313 B CN 102864313B
- Authority
- CN
- China
- Prior art keywords
- copper
- slag
- natural
- blister
- anode
- 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.)
- Active
Links
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 discloses a smelting method of natural copper mine. According to weight, 95-105 parts of copper concentrate, 35-45 parts of iron-bearing slag, 1-5 parts of lime and 0-10 parts of soot are smashed and mixed to prepare particles. The particles are smelted through reduction at high temperature and separated naturally to obtain smoke, rough slag and a first part of crude copper. The temperature of the crude copper is kept at the temperature of 1150-1250 DEG C, and the crude copper is cleared to be separated naturally to obtain slag, copper matte and a second part of crude copper, and the first part of crude copper and the second part of crude copper are combined to obtain total crude copper. The total crude copper is smelted, ventilated and oxidized, and silica is added to make slag to obtain copper oxide and remained slag. The remained slag is separated, a reduction agent is added, and the copper oxide is fully reduced and smelted to obtain anode copper. The anode copper is used as an anode, an electrolytic copper plate is used as a cathode, and electrolytic copper is obtained after fully electrolysis in acidic electrolysis liquid. The technological process is simple, low in production cost and small in environment pollution. The obtained electrolytic copper is good in quality, copper content is 99.95%, and comprehensive recovery rate is 96%.
Description
Technical field
The present invention relates to a kind of smelting process of natural copper mine, more specifically, relate to the method for the natural copper mine smelting that a kind of copper exists with elemental metals form.
Background technology
The positive copper mine of fiber crops is the natural copper mine of domestic contrast uniqueness, and copper is wherein different from the form that copper in common copper mine exists with sulfide, is mainly that the form with elemental metals copper exists; In copper mine, the content of sulphur and iron is also very low.Current copper mine smelting technique is mainly the common copper mine existing with sulphided form for copper, there is no the independent smelting process that is suitable for the natural copper mine that copper exists with elemental metals form.If use for the traditional technology of common copper mine, smelt numb positive copper mine, in the waste of fusion process, copper content is higher, and the copper recovery of whole technique is low.
Summary of the invention
The technical problem to be solved in the present invention is, for not being suitable for copper with this problem of independent smelting process of the natural copper mine of elemental metals form at present, provides a kind of smelting process that is suitable for this type of natural copper mine.
The technical problem to be solved in the present invention realizes by following proposal: a kind of smelting process of natural copper mine is provided, and the method comprises the following steps:
(1) batching: copper ore concentrates, iron slag, lime and flue dust are fully pulverized and mix, and obtain initial material, and wherein the parts by weight of copper ore concentrates, iron slag, lime and flue dust are respectively 95～105,35～45,1～5 and 0～10;
(2) granulate: by described initial material granulation;
(3) high temperature reduction melting: after described particle dehydrates, under reducing atmosphere, abundant melting natural separation obtain flue gas, thick slag and first part's blister copper;
(4) insulation clarification: described thick slag is clarified after 7～8h 1150～1250 ℃ of insulations, through natural separation, obtain slag, matte and second section blister copper, the first part's blister copper then described second section blister copper and step (3) being made merges and obtains total blister copper;
(5) further retailoring: after described total blister copper fusing, ventilate and be oxidized and add silica slag making, make cupric oxide and surplus slag; After separated described surplus slag, add reductive agent, described cupric oxide makes anode copper through abundant melting; Wherein, described reductive agent is preferably at least one of pine tree or diesel oil and the combination of charcoal;
(6) electrolytic refining: take described anode copper as anode, electrolytic copper foil be negative electrode, in acid electrolyte, fully electrolysis makes electrolytic copper.
In the smelting process of above-mentioned natural copper mine, described method also comprises collects the described flue gas producing in described step (3), and described flue gas obtains the flue dust in described initial material through precipitation.
In the smelting process of above-mentioned natural copper mine, in described initial material, the parts by weight of copper ore concentrates, iron slag, lime and flue dust are respectively 98～102,38～42,2～4 and 0～8.
In the smelting process of above-mentioned natural copper mine, in described step (2), described particle is spheroidal particle, and the diameter of described spheroidal particle is 30～45mm.
In the smelting process of above-mentioned natural copper mine, in described step (3), described abundant melting refers to melting 2.5～3.5h at 1300～1400 ℃.
In the smelting process of above-mentioned natural copper mine, in described step (5), described abundant melting refers at melting 19～20h at 1300～1400 ℃.
In the smelting process of above-mentioned natural copper mine, in described step (6), it is that 58～65 ℃, voltage are that 0.2～0.3V, current density are 200～240A/m that described abundant electrolysis refers in temperature
2lower electrolysis; Cupric concentration in described acid electrolyte is that 40～45g/L, sulfuric acid concentration are 150～200g/L.
In the smelting process of above-mentioned natural copper mine, the natural separation of described flue gas, thick slag and first part's blister copper is by the difference of specific gravity between them, to realize in high temperature reduction fusion process, and wherein first part's blister copper is deposited on bottom.
In the smelting process of above-mentioned natural copper mine, the natural separation of described slag, matte and second section blister copper is by the difference of specific gravity between them, to realize in insulation clarifying process, and wherein second section blister copper is deposited on bottom.
Implement the smelting process of natural copper mine of the present invention, can obtain following beneficial effect: in copper ore concentrates, ferrosilicon ratio is greater than 15, during batching, add the iron slag of suitable proportion (to comprise Fe
2o
3, Fe
3o
4with FeS etc.), can regulate the ferrosilicon ratio in initial material, meet the slag making needs in high temperature reduction fusion process; Simultaneously in high temperature reduction fusion process, the incomplete combustion of the coke by q.s keeps strongly reducing atmosphere, the Fe in the thick slag producing while making melting
3o
4be reduced to FeO completely, and and SiO
2slag making realizes separated, guarantees that the rate of recovery of blister copper is not less than 96.5%; Adopt the technique of high temperature reduction melting, thick slag insulation clarification, total further retailoring of blister copper and anode copper electrorefining can make the electrolytic copper that is not less than 99.95% containing copper grade, comprehensive recovery is not less than 96%.High and the final electrolytic copper quality of metal of the present invention (total blister copper, anode copper and the electrolytic copper) rate of recovery is good, and technical process is simple, production run cost is low, and due to SO in present method
2discharge little, environmental pollution is little.
Embodiment
The natural copper mine adopting in the present invention is the special copper ore concentrates that copper exists with elemental metals copper form, and the iron that wherein comprised and the content of sulphur are also very low, and ferrosilicon ratio is greater than 15.Concrete composition and the mass percent separately of such copper ore concentrates are: Cu 28-30%, Fe 2%, S 1%, SiO
234%, CaO 6.5%, Al
2o
35.5%, MgO 1%, H
2o 13% etc.Therefore, in the smelting process of copper mine, in order to meet slag making needs, in copper ore concentrates, conventionally allocate the iron slag of suitable proportion into, make the slag type that in smelting process, slag making reaction is carried out smoothly and obtained wishing.Here iron slag used is the product of sulfurous iron ore after fluidized bed roasting, and in the strong oxidizing atmosphere of fluidized bed roasting, the Fe element in iron slag is Fe substantially
2o
3and Fe
3o
4state; In the incomplete situation of roasting, there is a small amount of FeS.Here said " the slag type of hope " refers to that it is SiO that slag type is controlled
240-42%, Fe 24-25%, CaO 9-11%.
Below, by specific embodiment, the present invention is described in further details, it should be understood that and use the object of following examples to be more fully to explain and open the present invention, and the scope not limiting the present invention in any way.
Embodiment 1:
The flue dust that by rotary conveyor, parts by weight is respectively to 100,40,3 and 7 copper ore concentrates, iron slag, lime and outsourcing is transported to respectively in mixing pan, after fully pulverizing, mixes, and obtains initial material; This initial material is proceeded in apparatus for making pearl ball, each material is bonded together equably, make the spheroidal particle that diameter is 35mm; By rotary conveyor, spheroidal particle is transported in smelting furnace, after dehydrating, carbonate in spheroidal particle, sulphate decomposition, further, in the high-temperature zone of smelting furnace at 1350 ℃, due to the various material meltings of the incomplete combustion spheroidal particle of coke and be reduced the thick slag and the first part's blister copper that obtain respectively flue gas after melting 3h, comprise part copper; Adopt dust arrester installation to collect flue gas, flue gas obtains flue dust after abundant precipitation, and the flue dust obtaining is back in batch bin, upper, uses while once preparing burden; Thick slag is proceeded in electrothermal front bed, after 1200 ℃ of insulation clarification 8h, through gravity natural separation, obtain slag, matte and second section blister copper, from top slag blanket relief outlet, discharge slag, from row's copper mouth of bottom, obtain second section blister copper, then the first part's blister copper making in smelting furnace and the second section blister copper merging that makes are obtained to total blister copper herein; By charging machine, described total blister copper is proceeded to reverberatory furnace, fusing at 1350 ℃, the oxidation of ventilating obtains cupric oxide, add silica slag making and manually will remain slag and claw from reverberatory furnace, the surplus slag of realization is separated with cupric oxide, then add the abundant reductive copper oxide of pine tree and charcoal, after reverberatory smelting 20h, obtain anode copper; Described anode copper is proceeded in electrolyzer, take described anode copper as anode, electrolytic copper foil be negative electrode, in the acid electrolyte of sulfur acid copper, fully electrolysis makes electrolytic copper, and wherein each parameter setting of electrolyzer is as follows: temperature 60 C, bath voltage 0.2V, current density 220A/m
2, sulfuric acid concentration 180g/L in electrolytic solution cupric concentration 42g/L, electrolytic solution; In embodiment, prepared blister copper, anode copper and electrolytic copper are respectively 92%, 98.8% and 99.96% containing copper grade in 1.
Adopt the smelting process in embodiment 1, after high temperature reduction melting, further the object of the thick slag of insulation clarification is, realize the separation of the copper of the part comprising in thick slag, and then improve on the one hand the rate of recovery of blister copper, make on the other hand the requirement containing the satisfied discharge of copper grade in thick slag.Wherein, the weight percent that makes the slag that matte, blister copper are very low with containing copper grade after insulation clarification is respectively 14%, 6% and 80%.
In embodiment 1, the thick slag and the slag in electrothermal front bed that in smelting furnace, obtain are all preferably three component system slag FeOSiO
2caO, its concrete forming process relates generally to following reaction:
3Fe
2O
3+CO＝2Fe
3O
4+CO
2
FeS+16Fe
2O
3＝11Fe
3O
4+2SO
2
Fe
3O
4+CO＝3FeO+CO
2
2FeO+SiO+CaO＝2FeO·SiO
2·CaO
In electrothermal front bed, blister copper, matte and slag (are respectively 8.6g/cm because self proportion is different
3, 5.5g/cm
3and 3.7g/cm
3) and realize natural separation, wherein, slag is discharged from top slag blanket relief outlet; Blister copper sinks to bottom, and discharges from Pai Tongkou.Here it should be noted that Fe
3o
4for magnetic oxide, if amount of coke is not enough in fusion process, the reducing atmosphere that its incomplete combustion produces is inadequate, the Fe producing in smelting furnace
3o
4in electrothermal front bed, may enter matte, the viscosity of matte is increased.During insulation clarification, after blister copper fusing, while passing matte in process bottom it is being deposited into, blister copper may be mixed in matte, causes the rate of recovery of blister copper to reduce.Therefore,, in the present invention, in order to guarantee the rate of recovery of blister copper, in smelting furnace, by controlling the amount of coke, by its incomplete combustion, guarantee the content of C in furnace gas, thereby keep the strongly reducing atmosphere in smelting furnace, to guarantee Fe
3o
4can be reduced to FeO completely, then with SiO
2slag making is also effectively separated.
In embodiment 1, adopt dust arrester installation to collect the flue gas producing in smelting furnace, flue gas obtains the material identical with flue dust composition in initial material after abundant precipitation, also be flue gas in smelting furnace through collection with precipitation after the flue dust that obtains can recycle when the upper batching once, wherein the composition of flue dust and content are separately Cu 8-15%, Fe16-20%, S 2-3%, SiO
226-30%, CaO 4-6%, Al
2o
37-8%, MgO 1%.Particularly, when using first method of the present invention to smelt copper mine, the flue dust in initial material is outsourcing flue dust, and composition and content separately meet above-mentioned requirements; In the situation that having flue dust output, the flue dust that adds flue gas appropriate, that adopt above-mentioned dust arrester installation to collect to obtain after abundant precipitation in described ratio during batching, to guarantee the comprehensive recovery of whole fusion process subsequently.Certainly, when using method of the present invention to smelt copper mine first, in initial material, also can not add flue dust, only need suitably to improve the add-on of copper ore concentrates, to guarantee into stove material containing copper grade; This will further illustrate by following examples.
Embodiment 2:
By rotary conveyor, parts by weight are respectively to 102,40 and 2 copper ore concentrates, iron slag and lime and are transported to respectively in mixing pan, after fully pulverizing, mix, obtain initial material; This initial material is proceeded in apparatus for making pearl ball, each material is bonded together equably, make the spheroidal particle that diameter is 38mm; By rotary conveyor, spheroidal particle is transported in smelting furnace, after dehydrating, carbonate in spheroidal particle, sulphate decomposition, further, in the high-temperature zone of smelting furnace at 1300 ℃, due to the various material meltings of the incomplete combustion spheroidal particle of coke and be reduced the thick slag and the first part's blister copper that obtain respectively flue gas after melting 3.5h, comprise part copper; Adopt dust arrester installation to collect flue gas, flue gas obtains flue dust after abundant precipitation, and the flue dust obtaining is back in batch bin, upper, uses while once preparing burden; Thick slag is proceeded in electrothermal front bed, after 1150 ℃ of insulation clarification 7h, through gravity natural separation, obtain slag, matte and second section blister copper, from top slag blanket relief outlet, discharge slag, from row's copper mouth of bottom, obtain second section blister copper, then the first part's blister copper making in smelting furnace and the second section blister copper merging that makes are obtained to total blister copper herein; By charging machine, described total blister copper is proceeded to reverberatory furnace, fusing at 1350 ℃, the oxidation of ventilating obtains cupric oxide, add silica slag making and manually will remain slag and claw from reverberatory furnace, the surplus slag of realization is separated with cupric oxide, then add the abundant reductive copper oxide of pine tree and charcoal, after reverberatory smelting 19h, obtain anode copper; Described anode copper is proceeded in electrolyzer, take described anode copper as anode, electrolytic copper foil be negative electrode, in the acid electrolyte of sulfur acid copper, fully electrolysis makes electrolytic copper, and wherein each parameter setting of electrolyzer is as follows: 58 ℃ of temperature, bath voltage 0.25V, current density 220A/m
2, sulfuric acid concentration 170g/L in electrolytic solution cupric concentration 45g/L, electrolytic solution; In embodiment, prepared blister copper, anode copper and electrolytic copper are respectively 93%, 98.5% and 99.95% containing copper grade in 2.
Embodiment 3:
The flue dust that by rotary conveyor, parts by weight is respectively to 100,38,4 and 6 copper ore concentrates, iron slag, lime and outsourcing is transported to respectively in mixing pan, after fully pulverizing, mixes, and obtains initial material; This initial material is proceeded in apparatus for making pearl ball, each material is bonded together equably, make the spheroidal particle that diameter is 45mm; By rotary conveyor, spheroidal particle is transported in smelting furnace, after dehydrating, carbonate in spheroidal particle, sulphate decomposition, further, in the high-temperature zone of smelting furnace at 1300 ℃, due to the various material meltings of the incomplete combustion spheroidal particle of coke and be reduced, after melting 2.5h, obtain respectively flue gas, thick slag and first part's blister copper; Thick slag is proceeded in electrothermal front bed, after 1150 ℃ of insulation clarification 7.5h, through natural separation, be met slag, matte and the second section blister copper of emission request, from top slag blanket relief outlet, discharge slag, from row's copper mouth of bottom, obtain second section blister copper, then the first blister copper making in smelting furnace and the second section blister copper merging that makes are obtained to total blister copper herein; By charging machine, described total blister copper is proceeded to reverberatory furnace, fusing at 1400 ℃, the oxidation of ventilating obtains cupric oxide, add silica slag making and manually will remain slag and claw from reverberatory furnace, the surplus slag of realization is separated with cupric oxide, then add the abundant reductive copper oxide of diesel oil and charcoal, after reverberatory smelting 19h, obtain anode copper; Described anode copper is proceeded in electrolyzer, take described anode copper as anode, electrolytic copper foil be negative electrode, in the acid electrolyte of sulfur acid copper, fully electrolysis makes electrolytic copper, and wherein each parameter setting of electrolyzer is as follows: 58 ℃ of temperature, bath voltage 0.25V, current density 240A/m
2, sulfuric acid concentration 200g/L in electrolytic solution cupric concentration 40g/L, electrolytic solution; In embodiment, prepared blister copper, anode copper and electrolytic copper are respectively 90%, 98.5% and 99.95% containing copper grade in 3.
Embodiment 4:
By rotary conveyor, parts by weight are respectively to the flue dust obtaining in dust arrester installation in 98,42,4 and 8 copper ore concentrates, iron slag, lime and embodiment 1 and are transported to respectively in mixing pan, after fully pulverizing, mix, obtain initial material; This initial material is proceeded in apparatus for making pearl ball, each material is bonded together equably, make the spheroidal particle that diameter is 30mm; By rotary conveyor, spheroidal particle is transported in smelting furnace, after dehydrating, carbonate in spheroidal particle, sulphate decomposition, further, in the high-temperature zone of smelting furnace at 1400 ℃, due to the various material meltings of the incomplete combustion spheroidal particle of coke and be reduced, after melting 3.5h, obtain respectively flue gas, thick slag and first part's blister copper; Adopt dust arrester installation to collect flue gas, flue gas obtains flue dust after abundant precipitation, and the flue dust obtaining is back in batch bin, upper, uses while once preparing burden; Thick slag is proceeded in electrothermal front bed, after 1250 ℃ of insulation clarification 7h, through natural separation, be met slag, matte and the second section blister copper of emission request, from top slag blanket relief outlet, discharge slag, from row's copper mouth of bottom, obtain second section blister copper, then the first part's blister copper making in smelting furnace and the second section blister copper merging that makes are obtained to total blister copper herein; By charging machine, described total blister copper is proceeded to reverberatory furnace, fusing at 1300 ℃, the oxidation of ventilating obtains cupric oxide, add silica slag making and manually will remain slag and claw from reverberatory furnace, the surplus slag of realization is separated with cupric oxide, then add the abundant reductive copper oxide of diesel oil, pine tree and charcoal, after reverberatory smelting 19.5h, obtain anode copper; Described anode copper is proceeded in electrolyzer, take described anode copper as anode, electrolytic copper foil be negative electrode, in the acid electrolyte of sulfur acid copper, fully electrolysis makes electrolytic copper, and wherein each parameter setting of electrolyzer is as follows: 65 ℃ of temperature, bath voltage 0.3V, current density 200A/m
2, sulfuric acid concentration 150g/L in electrolytic solution cupric concentration 45g/L, electrolytic solution; In embodiment, prepared blister copper, anode copper and electrolytic copper are respectively 94%, 98.6% and 99.95% containing copper grade in 4.
Embodiment 5:
By rotary conveyor, parts by weight are respectively to 105,35 and 5 copper ore concentrates, iron slag and lime and are transported to respectively in mixing pan, after fully pulverizing, mix, obtain initial material; This initial material is proceeded in apparatus for making pearl ball, each material is bonded together equably, make the spheroidal particle that diameter is 40mm; By rotary conveyor, spheroidal particle is transported in smelting furnace, after dehydrating, carbonate in spheroidal particle, sulphate decomposition, further, in the high-temperature zone of smelting furnace at 1350 ℃, due to the various material meltings of the incomplete combustion spheroidal particle of coke and be reduced, after melting 3h, obtain respectively flue gas, thick slag and first part's blister copper; Adopt dust arrester installation to collect flue gas, flue gas obtains flue dust after abundant precipitation, and the flue dust obtaining is back in batch bin, upper, uses while once preparing burden; Thick slag is proceeded in electrothermal front bed, after 1250 ℃ of insulation clarification 8h, through natural separation, be met slag, matte and the second section blister copper of emission request, from top slag blanket relief outlet, discharge slag, from row's copper mouth of bottom, obtain second section blister copper, then the first part's blister copper making in smelting furnace and the second section blister copper merging that makes are obtained to total blister copper herein; By charging machine, described total blister copper is proceeded to reverberatory furnace, fusing at 1300 ℃, the oxidation of ventilating obtains cupric oxide, add silica slag making and manually will remain slag and claw from reverberatory furnace, the surplus slag of realization is separated with cupric oxide, then add the abundant reductive copper oxide of diesel oil, pine tree and charcoal, after reverberatory smelting 20h, obtain anode copper; Described anode copper is proceeded in electrolyzer, take described anode copper as anode, electrolytic copper foil be negative electrode, in the acid electrolyte of sulfur acid copper, fully electrolysis makes electrolytic copper, and wherein each parameter setting of electrolyzer is as follows: 58 ℃ of temperature, bath voltage 0.25V, current density 240A/m
2, sulfuric acid concentration 180g/L in electrolytic solution cupric concentration 42g/L, electrolytic solution; In embodiment, prepared blister copper, anode copper and electrolytic copper are respectively 90%, 98.5% and 99.95% containing copper grade in 5.
Embodiment 6:
By rotary conveyor, parts by weight are respectively to the flue dust obtaining in dust arrester installation in 95,45,1 and 10 copper ore concentrates, iron slag, lime and embodiment 1 and are transported to respectively in mixing pan, after fully pulverizing, mix, obtain initial material; This initial material is proceeded in apparatus for making pearl ball, each material is bonded together equably, make the spheroidal particle that diameter is 35mm; By rotary conveyor, spheroidal particle is transported in smelting furnace, after dehydrating, carbonate in spheroidal particle, sulphate decomposition, further, in the high-temperature zone of smelting furnace at 1400 ℃, due to the various material meltings of the incomplete combustion spheroidal particle of coke and be reduced, after melting 3h, obtain respectively flue gas, thick slag and first part's blister copper; Adopt dust arrester installation to collect flue gas, flue gas obtains flue dust after abundant precipitation, and the flue dust obtaining is back in batch bin, upper, uses while once preparing burden; Thick slag is proceeded in electrothermal front bed, after 1250 ℃ of insulation clarification 7.5h, through natural separation, be met slag, matte and the second section blister copper of emission request, from top slag blanket relief outlet, discharge slag, from row's copper mouth of bottom, obtain second section blister copper, then the first part's blister copper making in smelting furnace and the second section blister copper merging that makes are obtained to total blister copper herein; By charging machine, described total blister copper is proceeded to reverberatory furnace, fusing at 1350 ℃, the oxidation of ventilating obtains cupric oxide, add silica slag making and manually will remain slag and claw from reverberatory furnace, the surplus slag of realization is separated with cupric oxide, then add the abundant reductive copper oxide of diesel oil, pine tree and charcoal, after reverberatory smelting 19h, obtain anode copper; Described anode copper is proceeded in electrolyzer, take described anode copper as anode, electrolytic copper foil be negative electrode, in the acid electrolyte of sulfur acid copper, fully electrolysis makes electrolytic copper, and wherein each parameter setting of electrolyzer is as follows: temperature 60 C, bath voltage 0.2V, current density 210A/m
2, sulfuric acid concentration 180g/L in electrolytic solution cupric concentration 42g/L, electrolytic solution; In embodiment, prepared blister copper, anode copper and electrolytic copper are respectively 92%, 98.6% and 99.95% containing copper grade in 6.
Claims (9)
1. a smelting process for natural copper mine, natural copper mine is the copper ore concentrates that copper exists with elemental metals copper form, it is characterized in that, comprises the following steps:
(1) batching: copper ore concentrates, iron slag, lime and flue dust are fully pulverized and mix, and obtain initial material, and wherein the parts by weight of copper ore concentrates, iron slag, lime and flue dust are respectively 95～105,35～45,1～5 and 0～10;
(2) granulate: by described initial material granulation;
(3) high temperature reduction melting: after described particle dehydrates, under reducing atmosphere, abundant melting natural separation obtain flue gas, thick slag and first part's blister copper;
(4) insulation clarification: described thick slag is clarified after 7～8h 1150～1250 ℃ of insulations, through natural separation, obtain slag, matte and second section blister copper, the first part's blister copper then described second section blister copper and step (3) being made merges and obtains total blister copper;
(5) further retailoring: after described total blister copper fusing, ventilate and be oxidized and add silica slag making, make cupric oxide and surplus slag; After separated described surplus slag, add reductive agent, described cupric oxide makes anode copper through abundant melting;
(6) electrolytic refining: take described anode copper as anode, electrolytic copper foil be negative electrode, in acid electrolyte, fully electrolysis makes electrolytic copper.
2. the smelting process of natural copper mine according to claim 1, is characterized in that, described method also comprises collects the described flue gas producing in described step (3), and described flue gas obtains the flue dust in described initial material through precipitation.
3. the smelting process of natural copper mine according to claim 1 and 2, is characterized in that, in described initial material, the parts by weight of copper ore concentrates, iron slag, lime and flue dust are respectively 98～102,38～42,2～4 and 0～8.
4. the smelting process of natural copper mine according to claim 1 and 2, is characterized in that, in described step (2), described particle is spheroidal particle, and the diameter of described spheroidal particle is 30～45mm.
5. the smelting process of natural copper mine according to claim 1 and 2, is characterized in that, in described step (3), described abundant melting refers to melting 2.5～3.5h at 1300～1400 ℃.
6. the smelting process of natural copper mine according to claim 1 and 2, is characterized in that, in described step (5), described abundant melting refers at melting 19～20h at 1300～1400 ℃.
7. the smelting process of natural copper mine according to claim 1 and 2, is characterized in that, in described step (6), it is that 58～65 ℃, voltage are that 0.2～0.3V, current density are 200～240A/m that described abundant electrolysis refers in temperature
2lower electrolysis; Cupric concentration in described acid electrolyte is that 40～45g/L, sulfuric acid concentration are 150～200g/L.
8. the smelting process of natural copper mine according to claim 1 and 2, it is characterized in that, the natural separation of described flue gas, thick slag and first part's blister copper is by the difference of specific gravity between them, to realize in high temperature reduction fusion process, and wherein first part's blister copper is deposited on bottom.
9. the smelting process of natural copper mine according to claim 1 and 2, it is characterized in that, the natural separation of described slag, matte and second section blister copper is by the difference of specific gravity between them, to realize in insulation clarifying process, and wherein second section blister copper is deposited on bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110188222.7A CN102864313B (en) | 2011-07-06 | 2011-07-06 | Smelting method of natural copper mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110188222.7A CN102864313B (en) | 2011-07-06 | 2011-07-06 | Smelting method of natural copper mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102864313A CN102864313A (en) | 2013-01-09 |
| CN102864313B true CN102864313B (en) | 2014-02-05 |
Family
ID=47443438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110188222.7A Active CN102864313B (en) | 2011-07-06 | 2011-07-06 | Smelting method of natural copper mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102864313B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108315566A (en) * | 2018-01-16 | 2018-07-24 | 张家港市佰坤物资有限公司 | A kind of refined copper production technology |
| CN110283996A (en) * | 2019-07-29 | 2019-09-27 | 广西冶金研究院有限公司 | A kind of smelting process of energy-saving and environment-friendly copper-contained sludge |
| CN112030002B (en) * | 2020-09-10 | 2022-12-30 | 江西理工大学 | Method for producing blister copper by directly carrying out oxygen-enriched smelting on waste circuit boards |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062556A (en) * | 1990-11-20 | 1992-07-08 | 三菱材料株式会社 | The method of continuous copper smelting |
| CN101665877A (en) * | 2008-09-04 | 2010-03-10 | 环太铜业株式会社 | Method of smelting copper |
| CN101705368A (en) * | 2009-12-07 | 2010-05-12 | 河南豫光金铅股份有限公司 | Process and device for treating decopperized slag by adopting bottom-blowing molten pool to produce wet lead and raw copper |
| CN101760631A (en) * | 2009-06-04 | 2010-06-30 | 昆明理工大学 | Process for smelting copper with infinity furnace |
| CN101845554A (en) * | 2010-06-13 | 2010-09-29 | 云南铜业(集团)有限公司 | Method for melting copper by using waste copper and concentrate of copper sulfide as raw materials |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55134138A (en) * | 1979-04-03 | 1980-10-18 | Nippon Mining Co Ltd | Converter operating method in copper smelting |
-
2011
- 2011-07-06 CN CN201110188222.7A patent/CN102864313B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062556A (en) * | 1990-11-20 | 1992-07-08 | 三菱材料株式会社 | The method of continuous copper smelting |
| CN101665877A (en) * | 2008-09-04 | 2010-03-10 | 环太铜业株式会社 | Method of smelting copper |
| CN101760631A (en) * | 2009-06-04 | 2010-06-30 | 昆明理工大学 | Process for smelting copper with infinity furnace |
| CN101705368A (en) * | 2009-12-07 | 2010-05-12 | 河南豫光金铅股份有限公司 | Process and device for treating decopperized slag by adopting bottom-blowing molten pool to produce wet lead and raw copper |
| CN101845554A (en) * | 2010-06-13 | 2010-09-29 | 云南铜业(集团)有限公司 | Method for melting copper by using waste copper and concentrate of copper sulfide as raw materials |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102864313A (en) | 2013-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103382527B (en) | Flash smelting method and device for zinc sulfide concentrates and materials containing lead and zinc | |
| CN105543489B (en) | A kind of handling process of Copper making flue dust | |
| CN102321806B (en) | A kind of smelting process of processing zinc leaching residue by oxygen-enriched side-blowing furnace | |
| CN103388081A (en) | Bath smelting method and apparatus of zinc sulfide concentrate and lead-zinc containing materials | |
| CN104141057B (en) | The method of bismuth is reclaimed in a kind of precious metals containing lead | |
| CN101845554A (en) | Method for melting copper by using waste copper and concentrate of copper sulfide as raw materials | |
| CN103740945B (en) | A kind of method of enriching and recovering cadmium from plumbous smelting system | |
| CN105950869B (en) | A kind of method for improving zinc hydrometallurgy lead smelting gas high-efficiency resource recycling collocation amount | |
| CN102433448A (en) | Smelting method of antimony-zinc-lead-containing concentrate | |
| CN104141152A (en) | Method for recycling tin from lead bullion | |
| CN104278162A (en) | Method of selectively smelting antimony-lead-containing complex materials in smelting tank | |
| CN106086413B (en) | A kind of technique of zinc hydrometallurgy lead smelting gas recycling | |
| CN103993164B (en) | The method of the many metals of the plumbous zinc of oxysulphied smeltingization separation simultaneously | |
| CN106591592A (en) | Rich metallurgy smelting furnace and treatment process for treating polymetallic complex auricupride | |
| CN109055765A (en) | A method of recycling refined bismuth from precious metals containing lead | |
| CN103320614A (en) | Lead matte pyrogenic process treatment technology | |
| CN105039701A (en) | Treatment method of complicated zinc-rich leaded material | |
| CN106086461A (en) | A kind of method of Copper making process slag making arsenic removal | |
| CN104878215A (en) | Method for processing wet zinc residues by utilizing oxygen-enriched top-blowing lead smelting furnace | |
| CN102864313B (en) | Smelting method of natural copper mine | |
| CN115341106A (en) | Method and device for producing high nickel matte from low nickel matte | |
| CN107354299A (en) | Method for recycling Cu, Pb, Zn and Fe in slag in metal smelting process | |
| CN106834709A (en) | A kind of arsenic-containing smoke dust comprehensive utilization and the method for the solid arsenic mineral of precipitation transformation method synthesis | |
| CN108715941A (en) | A kind of smelting process of reviver | |
| CN114959293B (en) | Smelting method of low-lead silver concentrate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160811 Address after: Lu Jia Ping Zhen Jiu Qu 419413 Huaihua city of Hunan Province, Mayang Miao Autonomous County Bay (Mayang copper mine) Patentee after: Hunan senxin Mining Group Limited by Share Ltd Address before: 419413 Huaihua City, Hunan province Mayang Miao Autonomous County jouquwan Patentee before: Hunan Huayang Copper Industry Co., Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20180709 Address after: 419413 Hunan Huaihua Mayang Miao Autonomous County Lujia Ping Town, 9 Qu Wan copper mine. Patentee after: Mayang Hua Sen Mining Co., Ltd. Address before: 419413 Hunan Huaihua Mayang Miao Autonomous County Lujia Ping Town Qu Jiu Wan (formerly Mayang copper mine) Patentee before: Hunan senxin Mining Group Limited by Share Ltd |
|
| TR01 | Transfer of patent right |