CN106521183A - Method for smelting high-arsenic copper sulfide ore - Google Patents
Method for smelting high-arsenic copper sulfide ore Download PDFInfo
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- CN106521183A CN106521183A CN201610950115.6A CN201610950115A CN106521183A CN 106521183 A CN106521183 A CN 106521183A CN 201610950115 A CN201610950115 A CN 201610950115A CN 106521183 A CN106521183 A CN 106521183A
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- arsenic
- smelting
- copper
- mixed material
- concentrate
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- 238000003723 Smelting Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 79
- 239000012141 concentrate Substances 0.000 claims abstract description 67
- 229910052785 arsenic Inorganic materials 0.000 claims abstract description 54
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims abstract description 51
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000010949 copper Substances 0.000 claims abstract description 48
- 239000002893 slag Substances 0.000 claims abstract description 47
- 229910052802 copper Inorganic materials 0.000 claims abstract description 46
- 239000007789 gas Substances 0.000 claims abstract description 31
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 30
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000001301 oxygen Substances 0.000 claims abstract description 27
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 27
- 239000003546 flue gas Substances 0.000 claims abstract description 18
- 239000006004 Quartz sand Substances 0.000 claims abstract description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 45
- 238000005243 fluidization Methods 0.000 claims description 36
- VWZXPOSFVRUORB-UHFFFAOYSA-N [As].[S].[Cu] Chemical compound [As].[S].[Cu] VWZXPOSFVRUORB-UHFFFAOYSA-N 0.000 claims description 29
- 239000000292 calcium oxide Substances 0.000 claims description 23
- 235000012255 calcium oxide Nutrition 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 5
- 235000019738 Limestone Nutrition 0.000 claims description 3
- 239000010440 gypsum Substances 0.000 claims description 3
- 229910052602 gypsum Inorganic materials 0.000 claims description 3
- 239000006028 limestone Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 33
- 230000008569 process Effects 0.000 abstract description 12
- 229910052681 coesite Inorganic materials 0.000 abstract description 10
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 10
- 239000000377 silicon dioxide Substances 0.000 abstract description 10
- 229910052682 stishovite Inorganic materials 0.000 abstract description 10
- 229910052905 tridymite Inorganic materials 0.000 abstract description 10
- 239000011575 calcium Substances 0.000 abstract description 9
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052791 calcium Inorganic materials 0.000 abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 4
- BMWMWYBEJWFCJI-UHFFFAOYSA-K iron(3+);trioxido(oxo)-$l^{5}-arsane Chemical compound [Fe+3].[O-][As]([O-])([O-])=O BMWMWYBEJWFCJI-UHFFFAOYSA-K 0.000 abstract description 3
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- 239000000376 reactant Substances 0.000 abstract 1
- XPDICGYEJXYUDW-UHFFFAOYSA-N tetraarsenic tetrasulfide Chemical compound S1[As]2S[As]3[As]1S[As]2S3 XPDICGYEJXYUDW-UHFFFAOYSA-N 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 230000000630 rising effect Effects 0.000 description 8
- GOLCXWYRSKYTSP-UHFFFAOYSA-N Arsenious Acid Chemical compound O1[As]2O[As]1O2 GOLCXWYRSKYTSP-UHFFFAOYSA-N 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 238000001556 precipitation Methods 0.000 description 7
- 239000010453 quartz Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 5
- 235000011941 Tilia x europaea Nutrition 0.000 description 5
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000004571 lime Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 241000722270 Regulus Species 0.000 description 4
- 239000003500 flue dust Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 3
- 229910017251 AsO4 Inorganic materials 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000007499 fusion processing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical class [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- JEMGLEPMXOIVNS-UHFFFAOYSA-N arsenic copper Chemical group [Cu].[As] JEMGLEPMXOIVNS-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 description 1
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 description 1
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005363 electrowinning Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 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
-
- 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
-
- 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
- C22B15/0028—Smelting or converting
- C22B15/0047—Smelting or converting flash smelting or converting
-
- 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
- C22B1/00—Preliminary treatment of ores or scrap
-
- 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/04—Dry methods smelting of sulfides or formation of mattes by aluminium, other metals or silicon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
The invention provides a method for smelting high-arsenic copper sulfide ore. The method includes the following steps that high-arsenic copper sulfide concentrate, quartz sand and a CaO-containing material are mixed, so that a mixed material is obtained; and the mixed material and reactant gas containing oxygen are mixed and heated, the reaction is carried out, and accordingly the copper matte, slag and flue gas containing SO2 can be obtained. By the adoption of the method, the CaO and SiO2 are added in the smelting process, the concentrate material, the CaO and the SiO2 are reacted at a high temperature, arsenic sulfide in the concentrate is oxidized at first and then is subjected to a chemical reaction with a fluxing material CaO, the calcium-based compound of arsenic, ferric arsenate and other modes are generated to enter into the slag phase, and therefore the arsenic content in the copper matte is reduced.
Description
Technical field
The invention belongs to non-ferrous metal pyrometallurgical smelting technical field, and in particular to a kind of melting side of high arsenic copper-sulphide ores
Method.
Background technology
The pyrometallurgical smelting of copper point melting, blowing, four parts of anode refining and electrorefining.Mainly take off in fusion process
Go outside substantial amounts of sulphur and iron, will also remove the impurity elements such as arsenic, antimony, bismuth, lead, zinc as far as possible.In the smelting process of metal, slag making
It is a very important link, it may be said that it is exactly slagging process to make copper process, makes the impurity such as more arsenic, antimony enter slag, with
The impurity content of sulfonium is reduced, and metallurgical slag there must also be good fluidity and the features such as easily separated metal (sulfonium).
With the exhaustion of resource, lean ore is more and more, corresponding impurity content especially arsenic content more and more higher, when arsenic
When content exceeds technological design scope, the copper matte regulus arsenic content that melting is produced will be raised, and corresponding anode copper arsenic content can also rise
Height, this has just increased the pressure of the net liquid of electrowinning process, and the quality of tough cathode is affected when serious.Currently for the process master of high arsenic content ore
To make the arsenic content after dispensing reach technological design scope and be produced by allocating a small amount of high arsenic content ore into, this method is not suitable for
The process of extensive high arsenic content ore.
And flash smelting technology accounts for world's pyrogenic process copper and produces as the maximum technology of most advanced, disposal ability in the world at present
More than the 60% of amount, is the smelting technique of generally acknowledged " eating flour and rice " in the world, typically requires that copper concentrate impurity content is low, such as arsenic one
As will be less than 0.3%, the blister copper and anode copper arsenic content for otherwise producing is higher, affect electrolysis production.And present copper concentrate
It is general to be difficult to meet this design requirement, anode copper arsenic content overproof is caused, electrolysis production is affected, how to be developed one kind and can locate
The Copper making technology that high impurity is particularly high arsenic-and copper-bearing concentrate is managed, becomes current technical staff's concerned issue.
The content of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of method of smelting of high arsenic copper sulfide concentrate,
The method of smelting that the present invention is provided can process the high copper sulfide concentrate of arsenic content, and the discard slag with copper of output is high, and arsenic content
It is low.
The invention provides a kind of method of smelting of high arsenic copper sulfide concentrate, comprises the following steps：
(A) high arsenic copper sulfide concentrate, quartz sand and material containing CaO are mixed, obtains mixed material；
(B) mixed material is added into smelting furnace with oxygen-containing reacting gas, is reacted, obtain matte, slag and containing SO2
Flue gas.
Preferably, the step (B) is specially：
(B1) mixed material, is that 10 °～40 ° conveying pipelines (3) enter fluidisation charging gear (2), Jing streams through inclination angle
The fluidization for changing charging gear (2) enters copper concentrate nozzle (1)；
(B2) mixed material and the oxygen-containing reacting gas are mixed into flash in the presence of copper concentrate nozzle (1)
Furnace reaction tower is reacted in (4), obtains matte, slag and containing containing SO2Flue gas.
Preferably, high arsenic copper sulfide concentrate 0.3wt% containing the arsenic～1.8wt%.
Preferably, the material containing CaO is selected from quick lime, lime stone or gypsum.
Preferably, the addition containing CaO materials is the 1wt%～10wt% of the mixed material quality.
Preferably, in the mixed material, water content is less than 0.3wt%.
Preferably, the oxygen content of the oxygen-containing reacting gas is 50%～95%.
Preferably, the grade of the matte is 50%～70%.
Preferably, 0.2wt% containing arsenic～0.6wt% in the matte.
Compared with prior art, the invention provides a kind of method of smelting of high arsenic copper sulfide concentrate, comprises the following steps：
High arsenic copper sulfide concentrate, quartz sand and material containing CaO are mixed, mixed material is obtained；By the mixed material and oxygen-containing reaction
Gas adds smelting furnace, is reacted, and obtains matte, slag and containing SO2Flue gas.The present invention is by adding during smelting
CaO and SiO2, make concentrate material, CaO and SiO2React at high operating temperatures, the sulfide of the arsenic in concentrate is first oxidized, afterwards with
There is chemical reaction in sludging flux CaO, generate and enter slag phase with forms such as the Cabase compound of arsenic, ferric arsenates, reduce in copper matte regulus
The content of arsenic.
As a result show, the grade of the matte of the method for smelting output that the present invention is provided is 50%～70%, in matte, contain arsenic
0.2wt%～0.6wt%, the slag rate that enters of arsenic are more than 70%.
Description of the drawings
The structural representation of the high arsenic copper sulfide concentrate smelting apparatus that Fig. 1 is provided for the present invention.
Wherein：1 is copper concentrate nozzle, and 2 are sulfuration charging gear, and 3 is conveying pipeline, and 4 is flash furnace reaction tower.
Specific embodiment
The invention provides a kind of method of smelting of high arsenic copper-sulphide ores, comprises the following steps：
High arsenic copper sulfide concentrate, quartz sand and material containing CaO are mixed, mixed material is obtained；
By the mixed material and oxygen-containing reacting gas Hybrid Heating, reacted, obtained matte, slag and containing SO2Cigarette
Gas.
The copper sulfide concentrate that the present invention is provided is high arsenic copper sulfide concentrate, in the present invention, the high arsenic copper sulfide concentrate
In 0.3wt% containing arsenic～1.8wt%, preferably 0.4wt%～1.6wt%, in certain specific embodiments of the invention, institute
0.4wt% containing arsenic in high arsenic copper sulfide concentrate is stated, in other specific embodiments of the present invention, the high arsenic copper sulfide essence
0.6wt% containing arsenic in ore deposit, in other specific embodiments of the present invention, contains arsenic in the high arsenic copper sulfide concentrate
0.8wt%, in other specific embodiments of the present invention, 1.0wt% containing arsenic in the high arsenic copper sulfide concentrate, at this
In other bright specific embodiments, 1.6wt% containing arsenic in the high arsenic copper sulfide concentrate.
In the present invention, the high arsenic copper sulfide concentrate needed drying, drying moisture to be less than before melting is carried out
0.3wt%.
Dry high arsenic copper sulfide concentrate, quartz sand and material containing CaO are mixed, mixed material is obtained.
In order to reduce the quantity of slag and ensure certain impurity-removing rate, thing containing calcium oxide is added in copper-sulphide ores fusion process
Material, the material containing CaO are selected from quick lime, lime stone or gypsum.
The addition containing CaO materials is the 1wt%～10wt% of the mixed material quality, preferably 2wt%～
8wt%, more preferably 4wt%～6wt%.
In the mixed material for obtaining, water content is less than 0.3wt%.
The mixed material is added into smelting furnace with oxygen-containing reacting gas, is reacted, obtain matte, slag and containing SO2's
Flue gas.
, art technology not specifically limited in the smelting furnace carried out used by melting to high arsenic copper sulfide concentrate of the invention
Smelting furnace known to personnel, can be Flash Smelting Furnace, or molten bath stove.According to the difference of smelting equipment, melted
During refining, from the smelting time and smelting temperature that match with equipment.
In the present invention, it is preferred to the high arsenic copper sulfide provided for the present invention using the smelting apparatus with Fig. 1 structures, Fig. 1
The structural representation of concentrate smelting apparatus.
In Fig. 1,1 is copper concentrate nozzle, and 2 are sulfuration charging gear, and 3 is conveying pipeline, and 4 is flash furnace reaction tower.
The high arsenic copper sulfide concentrate smelting apparatus that the present invention is provided mainly include conveying pipeline 3, flash furnace reaction tower 4, connection
The copper concentrate nozzle 1 of conveying pipeline 3 and flash furnace reaction tower 4, the position that copper concentrate nozzle 1 is connected with conveying pipeline 3 is provided with fluidisation
Charging gear 2.
As shown in Figure 1.The effect of fluidisation charging gear 2 in the present embodiment, is set up, is in order that mixed material uniformly can
More uniformly enter in the material channel of copper concentrate nozzle 1, and then more uniformly enter in reaction tower, so as to maximum
The generation for preventing segregation phenomena of degree, makes reaction effect more project.
After mixed material is obtained, the mixed material is preferably delivered to the smelting apparatus with Fig. 1 structures by the present invention
In carry out melting reaction.
(B1) mixed material, is that 10 °～40 ° conveying pipelines (3) enter fluidisation charging gear (2), Jing streams through inclination angle
The fluidization for changing charging gear (2) enters copper concentrate nozzle (1)；
(B2) mixed material and the oxygen-containing reacting gas are mixed into flash in the presence of copper concentrate nozzle (1)
Furnace reaction tower is reacted in (4), obtains matte, slag and containing containing SO2Flue gas.
Specifically, the present invention by mixed material, is entered for 10 ° of -40 ° of conveying pipelines (3) through inclination angle when using Flash Smelting
Enter to fluidize charging gear (2), the fluidization of Jing fluidisations charging gear (2) uniformly enters copper concentrate nozzle (1)；It is simultaneously oxygen-containing
Reacting gas Jing pipelines enter copper concentrate nozzle (1)；Mixed material and oxygen-containing reacting gas are in the presence of copper concentrate nozzle (1)
Reacted in flash furnace reaction tower (4), produce matte, slag and contain SO2Flue gas.
In order to improve flue gas concentration and reaction efficiency, and ensure the heat balance reacted, typically lead in smelting process
The oxygen-containing reacting gas oxygen content for entering is 50%～95%, and the oxidation for being so also beneficial to impurity in copper concentrate enters smelting slag
In, reduce impurity content in matte.In the present invention, the oxygen content of the oxygen-containing reacting gas is 50%～95%, preferably
60%～90%, more preferably 70%～80%.
Mixed material and reacting gas further mix in furnace reaction tower smelting, and the rising with temperature decompose and
Slag making reaction is carried out into sedimentation basin after oxidation, matte, slag is generated and is contained SO2Flue gas, wherein, matte and slag enter reaction tower
The settling tank of bottom carries out sedimentation separation, containing SO2Flue gas through smelting furnace uptake flue discharge.According to above-mentioned method of smelting,
The grade of the matte for obtaining is 50%～70%.0.2wt% containing arsenic～0.6wt% in the matte.
The chemical reaction occurred in smelting equipment is as follows：
Decomposition reaction：
2FeS2→2FeS+S2
4CuFeS2→2Cu2S+2FeS+S2
CaCO3→CaO+CO2
Oxidation reaction：
4CuFeS2+5O2→2Cu2S·FeS+2FeO+4SO2
4FeS2+11O2→2Fe2O3+8SO2
3FeS2+8O2→2Fe3O4+6SO2
CuS+O2→Cu2S+SO2
2Cu2S+3O2→2Cu2O+2SO2
2As2S2+7O2→2As2O3+4SO2
Make sulfonium reaction：
FeS+Cu2O→FeO+Cu2S
Slag making is reacted：
2FeO+SiO2→2FeO·SiO2
As2O3+3CaO+O2→Ca3(AsO4)2
By CaO and SiO is added during smelting2, make concentrate material, CaO and SiO2Into in stove, in high temperature shape
React under state.The sulfide of the arsenic in concentrate is first oxidized, and chemical reaction occurs with sludging flux CaO afterwards, generates with the calcium of arsenic
The forms such as based compound, ferric arsenate enter slag phase, reduce the content of arsenic in copper matte regulus.
Contain Fe elements in the high arsenic copper-sulphide ores, it is of the invention when the preparation of stove material is entered, by Fe in mixed material
Quality and SiO2Mass ratio be 1：(0.6～0.9) quartz sand is added, the FeO produced in making course of reaction forms slag, and sends out
Raw 2FeO+SiO2→2FeO·SiO2Reaction, it is ensured that the viscosity of smelting slag is relatively low, with preferable mobility, is conducive to smelting slag
Separate with copper matte regulus, reduce the content of copper in smelting slag.By controlling Fe/SiO in slag2Ratio, working the slag bulk flow
Dynamic property, beneficial to discharge.
Concrete reaction is as follows：
CaCO3→CaO+CO2
2As2S2+7O2→2As2O3+4SO2
As2O3+3CaO+O2→Ca3(AsO4)2
Also a small amount of As2O3The Fe for generating can be aoxidized with concentrate2O3, generate ferric arsenate.Reaction is as follows：
As2O3+3Fe2O3+O2→FeAsO4
The method of smelting that the present invention is provided can process the copper concentrate containing arsenic 0.3%～1.8%, and the matte of output is low containing arsenic
In 0.4%；Also, the slag good fluidity for obtaining, Copper in Slag is stable and copper content is low；The method of smelting processes high arsenic copper-sulphide ores
Ability is big, is adapted to large industrialized production.
As a result show, the grade of the matte of the method for smelting output that the present invention is provided is 50%～70%, in matte, contain arsenic
0.2wt%～0.6wt%, the slag rate that enters of arsenic are more than 70%.
For a further understanding of the present invention, the melting side of the high arsenic copper-sulphide ores present invention provided with reference to embodiment
Method is illustrated, and protection scope of the present invention is not limited by the following examples.
Embodiment 1
Copper sulfide concentrate 100t containing arsenic 0.4%, allocates 18t quartz sands and 2.5t calcium lime powders into, through mixing, is mixed
Compound material, the mixed material are that 15 ° of conveying pipelines (3) enter fluidisation charging gear (2), Jing fluidisation charging gears through inclination angle
(2) fluidization enters copper concentrate nozzle (1)；
Mixed material and oxygen-rich concentration are that 80% reacting gas is mixed in the presence of copper concentrate nozzle (1) entrance
Temperature is 1280 DEG C of flash furnace reaction tower, as the rising of mixed material and reacting gas temperature starts to decompose, aoxidizes
Reaction, finally enters bottom precipitation pond, output 36.7t matte, and slag and containing SO2Flue gas, wherein matte contain Cu68%, contain
As0.25%, the slag rate that enters of arsenic is 71.2%.
Embodiment 2
Fluidisation copper concentrate 100t containing arsenic 0.6%, allocates 16t quartz sands and 4t calcium lime powders into, through mixing, is mixed
Material, the mixed material are that 20 ° of conveying pipelines (3) enter fluidisation charging gear (2), Jing fluidisations charging gear (2) through inclination angle
Fluidization enter copper concentrate nozzle (1)；
Mixed material and with the reacting gas that oxygen-rich concentration is 86% be mixed in the presence of copper concentrate nozzle (1) into
Enter the flash furnace reaction tower that temperature is 1300 DEG C, start to decompose with the rising of mixed material and reacting gas temperature, oxygen
Change reaction, finally enter bottom precipitation pond, output 35.7t matte, and slag and containing SO2Flue gas, wherein matte contains
Cu67.2%, containing As0.32%, the slag rate that enters of arsenic is 77.9%.
Embodiment 3
Fluidisation copper concentrate 100t containing arsenic 0.8%, allocates 17t quartz sands and 6t calcium lime powders into, through mixing, is mixed
Material, the mixed material are that 30 ° of conveying pipelines (3) enter fluidisation charging gear (2), Jing fluidisations charging gear (2) through inclination angle
Fluidization enter copper concentrate nozzle (1)；
Mixed material and together with the reacting gas that oxygen-rich concentration is 84% into the reaction of Flash Smelting Furnace that temperature is 1300 DEG C
Tower, starts to decompose with the rising of mixed material and reacting gas temperature, oxidation reaction, finally enters bottom precipitation pond,
Output 36t matte, and slag and contain SO2Flue gas, wherein matte contain Cu65.2%, containing As0.38%, the slag rate that enters of arsenic is
70.2%.
Embodiment 4
Copper sulfide concentrate 100t containing arsenic 0.4%, allocates 18t quartz sands, 2.5t calcium lime powders and a small amount of flue dust into, through mixed
Close, obtain mixed material, the mixed material is that 35 ° of conveying pipelines (3) enter fluidisation charging gear (2), Jing fluidisations through inclination angle
The fluidization of charging gear (2) enters copper concentrate nozzle (1)；
Mixed material and together with the reacting gas that oxygen-rich concentration is 80% into the reaction of Flash Smelting Furnace that temperature is 1260 DEG C
Tower, starts to decompose with the rising of mixed material and reacting gas temperature, oxidation reaction, finally enters bottom precipitation pond,
Output 36.7t matte, and slag and contain SO2Flue gas, wherein matte contain Cu68%, containing As0.25%, the slag rate that enters of arsenic is
71.2%.
Embodiment 5
Fluidisation copper concentrate 100t containing arsenic 0.6%, allocates 16t quartz sands, 4.5t agstones and a small amount of flue dust into, through mixed
Close, obtain mixed material, the mixed material is that 30 ° of conveying pipelines (3) enter fluidisation charging gear (2), Jing fluidisations through inclination angle
The fluidization of charging gear (2) enters copper concentrate nozzle (1)；
Mixed material and together with the reacting gas that oxygen-rich concentration is 58% into the reaction of Flash Smelting Furnace that temperature is 1300 DEG C
Tower, starts to decompose with the rising of mixed material and reacting gas temperature, oxidation reaction, finally enters bottom precipitation pond,
Output 35.7t matte, and slag and contain SO2Flue gas, wherein matte contain Cu67.2%, containing As0.29%, the slag rate that enters of arsenic is
77.9%.
Embodiment 6
Fluidisation copper concentrate 100t containing arsenic 1%, allocates 17t quartz sands, 7.5t agstones and a small amount of flue dust into, through mixed
Close, obtain mixed material, the mixed material is that 25 ° of conveying pipelines (3) enter fluidisation charging gear (2), Jing fluidisations through inclination angle
The fluidization of charging gear (2) enters copper concentrate nozzle (1)；
Mixed material and together with the reacting gas that oxygen-rich concentration is 88% into the reaction of Flash Smelting Furnace that temperature is 1240 DEG C
Tower, starts to decompose with the rising of mixed material and reacting gas temperature, oxidation reaction, finally enters bottom precipitation pond,
Output 36t matte, and slag and contain SO2Flue gas, wherein matte contain Cu65.2%, containing As0.33%, the slag rate that enters of arsenic is
79.2%.
Embodiment 7
Fluidisation copper concentrate 100t containing arsenic 1.6%, allocates 15.5t quartz sands and 9.5t calcium lime powders into, through mixing, obtains
Mixed material, the mixed material are that 40 ° of conveying pipelines (3) enter fluidisation charging gear (2), Jing fluidisation charging gears through inclination angle
(2) fluidization enters copper concentrate nozzle (1)；
Mixed material and together with the reacting gas that oxygen-rich concentration is 95% into the reaction of Flash Smelting Furnace that temperature is 1250 DEG C
Tower, starts to decompose with the rising of mixed material and reacting gas temperature, oxidation reaction, finally enters bottom precipitation pond,
Output 36t matte, and slag and contain SO2Flue gas, wherein matte contain Cu68%, containing As0.43%, the slag rate that enters of arsenic is
84.7%.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of method of smelting of high arsenic copper sulfide concentrate, it is characterised in that comprise the following steps：
(A) high arsenic copper sulfide concentrate, quartz sand and material containing CaO are mixed, obtains mixed material；
(B) mixed material is added into smelting furnace with oxygen-containing reacting gas, is reacted, obtain matte, slag and containing SO2Cigarette
Gas.
2. method of smelting according to claim 1, it is characterised in that the step (B) is specially：
(B1) mixed material, is that 10 °～40 ° conveying pipelines (3) enter fluidisation charging gear (2) through inclination angle, Jing fluidize to
The fluidization of material device (2) enters copper concentrate nozzle (1)；
(B2) in the presence of copper concentrate nozzle (1) to be mixed into Flash Smelting Furnace anti-for the mixed material and the oxygen-containing reacting gas
Reacted in answering tower (4), obtained matte, slag and containing SO2Flue gas.
3. method of smelting according to claim 1, it is characterised in that the high arsenic copper sulfide concentrate 0.3wt% containing arsenic～
1.8wt%.
4. method of smelting according to claim 1, it is characterised in that the material containing CaO selected from quick lime, lime stone or
Gypsum.
5. method of smelting according to claim 1, it is characterised in that the addition containing CaO materials is the mixing
1wt%～the 10wt% of quality of material.
6. method of smelting according to claim 1, it is characterised in that water content is less than 0.3wt% in the mixed material.
7. method of smelting according to claim 1, it is characterised in that the oxygen content of the oxygen-containing reacting gas is 50%～
95%.
8. method of smelting according to claim 1, it is characterised in that the grade of the matte is 50%～70%.
9. method of smelting according to claim 1, it is characterised in that 0.2wt% containing arsenic～0.6wt% in the matte.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610950115.6A CN106521183A (en) | 2016-11-02 | 2016-11-02 | Method for smelting high-arsenic copper sulfide ore |
| MX2017013925A MX2017013925A (en) | 2016-11-02 | 2017-10-30 | Method for smelting high-arsenic copper sulfide ore. |
| CL2017002757A CL2017002757A1 (en) | 2016-11-02 | 2017-10-31 | A method for melting copper sulfide ore high in arsenic |
| ES201731273A ES2666396B2 (en) | 2016-11-02 | 2017-10-31 | A procedure to melt a copper sulfide mineral with high arsenic content |
| JP2017212265A JP2018109223A (en) | 2016-11-02 | 2017-11-01 | Method for smelting high arsenic copper sulfide ore |
| RU2017138064A RU2683675C1 (en) | 2016-11-02 | 2017-11-01 | Method for melting copper sulphide ore with high arsenic content |
| US15/801,245 US20180119250A1 (en) | 2016-11-02 | 2017-11-01 | Method for smelting high-arsenic copper sulfide ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610950115.6A CN106521183A (en) | 2016-11-02 | 2016-11-02 | Method for smelting high-arsenic copper sulfide ore |
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| Publication Number | Publication Date |
|---|---|
| CN106521183A true CN106521183A (en) | 2017-03-22 |
Family
ID=58325181
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610950115.6A Pending CN106521183A (en) | 2016-11-02 | 2016-11-02 | Method for smelting high-arsenic copper sulfide ore |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20180119250A1 (en) |
| JP (1) | JP2018109223A (en) |
| CN (1) | CN106521183A (en) |
| CL (1) | CL2017002757A1 (en) |
| ES (1) | ES2666396B2 (en) |
| MX (1) | MX2017013925A (en) |
| RU (1) | RU2683675C1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107164638A (en) * | 2017-07-04 | 2017-09-15 | 阿拉山口市锦丰工贸有限公司 | The method of smelting and equipment of a kind of arsenic-containing material |
| CN110156353A (en) * | 2019-05-31 | 2019-08-23 | 北方民族大学 | A kind of methods and applications of Combined Treatment copper ashes and magnesium slag |
| CN113564384A (en) * | 2021-07-23 | 2021-10-29 | 湖南辰州矿业有限责任公司 | Production method of refined antimony with ultralow arsenic content |
| CN114231754A (en) * | 2021-11-08 | 2022-03-25 | 铜陵有色金属集团股份有限公司 | Copper flash smelting process |
| CN114277245A (en) * | 2021-12-14 | 2022-04-05 | 东华大学 | Directional conversion and stabilization method of arsenic component in black copper mud in anode copper refining process |
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| CN113351630A (en) * | 2021-07-01 | 2021-09-07 | 中城华宇（北京）矿业技术有限公司 | Harmless treatment method for arsenic sulfide slag |
| CN114941076B (en) * | 2022-06-28 | 2023-06-02 | 中国矿业大学 | Method for extracting and recovering gold from aqueous solution |
| CN115572837A (en) * | 2022-09-05 | 2023-01-06 | 楚雄滇中有色金属有限责任公司 | Method for preventing flue of boiler from being blocked by high-arsenic copper concentrate during Isa smelting |
| CN115652102A (en) * | 2022-10-26 | 2023-01-31 | 铜陵有色金属集团股份有限公司 | Method for treating arsenic slag produced in copper smelting process of austenite furnace |
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- 2017-10-31 CL CL2017002757A patent/CL2017002757A1/en unknown
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107164638A (en) * | 2017-07-04 | 2017-09-15 | 阿拉山口市锦丰工贸有限公司 | The method of smelting and equipment of a kind of arsenic-containing material |
| CN107164638B (en) * | 2017-07-04 | 2018-10-02 | 阿拉山口市锦丰工贸有限公司 | A kind of method of smelting and equipment of arsenic-containing material |
| CN110156353A (en) * | 2019-05-31 | 2019-08-23 | 北方民族大学 | A kind of methods and applications of Combined Treatment copper ashes and magnesium slag |
| CN110156353B (en) * | 2019-05-31 | 2021-04-30 | 北方民族大学 | Method for combined treatment of copper slag and magnesium slag and application |
| CN113564384A (en) * | 2021-07-23 | 2021-10-29 | 湖南辰州矿业有限责任公司 | Production method of refined antimony with ultralow arsenic content |
| CN114231754A (en) * | 2021-11-08 | 2022-03-25 | 铜陵有色金属集团股份有限公司 | Copper flash smelting process |
| CN114277245A (en) * | 2021-12-14 | 2022-04-05 | 东华大学 | Directional conversion and stabilization method of arsenic component in black copper mud in anode copper refining process |
| CN114277245B (en) * | 2021-12-14 | 2024-04-26 | 东华大学 | Directional conversion and stabilization method for arsenic component in black copper mud in anode copper refining process |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2666396A1 (en) | 2018-05-04 |
| MX2017013925A (en) | 2018-09-28 |
| CL2017002757A1 (en) | 2018-04-13 |
| US20180119250A1 (en) | 2018-05-03 |
| ES2666396B2 (en) | 2018-11-15 |
| RU2683675C1 (en) | 2019-04-01 |
| JP2018109223A (en) | 2018-07-12 |
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