CN102994744B - Technology for processing lead copper matte by ferric chloride - Google Patents
Technology for processing lead copper matte by ferric chloride Download PDFInfo
- Publication number
- CN102994744B CN102994744B CN201110270200.5A CN201110270200A CN102994744B CN 102994744 B CN102994744 B CN 102994744B CN 201110270200 A CN201110270200 A CN 201110270200A CN 102994744 B CN102994744 B CN 102994744B
- Authority
- CN
- China
- Prior art keywords
- lead
- copper
- leaching
- matte
- lead matte
- 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.)
- Expired - Fee Related
Links
- 239000010949 copper Substances 0.000 title claims abstract description 46
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 39
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 title claims abstract description 11
- 238000005516 engineering process Methods 0.000 title abstract description 6
- 229910021578 Iron(III) chloride Inorganic materials 0.000 title abstract 3
- 238000000034 method Methods 0.000 claims abstract description 53
- 238000002386 leaching Methods 0.000 claims abstract description 32
- 239000007787 solid Substances 0.000 claims abstract description 24
- 238000000926 separation method Methods 0.000 claims abstract description 18
- 229910052709 silver Inorganic materials 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 15
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002893 slag Substances 0.000 claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- 239000004332 silver Substances 0.000 claims abstract description 10
- 230000003647 oxidation Effects 0.000 claims abstract description 9
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 9
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052737 gold Inorganic materials 0.000 claims abstract description 4
- 239000010931 gold Substances 0.000 claims abstract description 4
- 230000002378 acidificating effect Effects 0.000 claims abstract description 3
- HWSZZLVAJGOAAY-UHFFFAOYSA-L lead(II) chloride Chemical compound Cl[Pb]Cl HWSZZLVAJGOAAY-UHFFFAOYSA-L 0.000 claims abstract description 3
- 239000003245 coal Substances 0.000 claims description 13
- 238000011084 recovery Methods 0.000 claims description 12
- 230000001698 pyrogenic effect Effects 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 230000035484 reaction time Effects 0.000 claims description 8
- 229910052711 selenium Inorganic materials 0.000 claims description 7
- 229910052714 tellurium Inorganic materials 0.000 claims description 7
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 6
- 238000003723 Smelting Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 239000005864 Sulphur Substances 0.000 claims description 5
- 238000005660 chlorination reaction Methods 0.000 claims description 5
- 239000000460 chlorine Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000000047 product Substances 0.000 claims description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 3
- 238000002203 pretreatment Methods 0.000 claims description 3
- 230000008929 regeneration Effects 0.000 claims description 3
- 238000011069 regeneration method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 2
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 229910001447 ferric ion Inorganic materials 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 2
- 238000000227 grinding Methods 0.000 abstract description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 2
- 150000002500 ions Chemical class 0.000 abstract 2
- -1 iron ions Chemical class 0.000 abstract 1
- 238000005272 metallurgy Methods 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000007873 sieving Methods 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
- 150000003568 thioethers Chemical class 0.000 abstract 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011669 selenium Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
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 relates to a technology for processing lead copper matte by ferric chloride, and belongs to the wet method field of the non-ferrous metal metallurgy. The technology comprises the following steps: crushing and grinding the lead copper matte, and sieving by a mesh 80 mesh sieve to obtain below 80 mesh particles; and carrying out normal pressure leaching of the ground lead copper matte in a leaching tank at 50-100DEG C for 4-8h, wherein the FeCl3 concentration is controlled between 200g/l and 400g/l, and the liquid-solid ratio is 3-10:1. Air is properly blown and a small amount of hydrochloric acid is added to acidify in order to improve the leaching effect and shorten the leaching time. Trivalent iron ions are utilized as an oxidizing agent to leach sulfides under an acidic condition. In the oxidation leaching process, sulfur in the lead copper matte is oxidized into elemental sulfur which is transferred to slag, copper is oxidized and enters a solution in an ion state, and lead is residual in the slag as lead chloride together with gold and silver; after completing the leaching process, liquid-solid separation of an ore pulp is carried out while hot to realize the preliminary separation of copper and lead; and scrap ion is added to the copper-enrich leaching solution to displace copper in the leaching solution in order to obtain a preliminary product copper sponge.
Description
Technical field
The present invention relates to a kind of iron trichloride and process the technique of lead matte, belong to non-ferrous metal hydrometallurgy field.
Background technology
Smelt in production process at lead, blast furnace smelting and fire refining of crude lead operation can produce lead matte, and its main component is FeS, Cu
2s, PbS, also contain gold and silver valuable metal and selenium, tellurium dissipated metal in lead matte.Lead matte adopts pyrogenic process to process conventionally, in copper converter, blows, and obtains blister copper, and lead enters flue dust through blowing.The method exists that duration of blast is long, running cost is high, lead metal reclaims difficulty and causes the shortcomings such as the rate of recovery is low, environmental pollution.
On July 23rd, 2008, Chinese invention patent publication number CN 101225476A, discloses a kind of " from lead matte, reclaiming the technique of copper ", is lead matte piece material to be milled to granularity be less than below 40 orders; Lead matte after grinding is sent into autoclave after sizing mixing with useless electric effusion or dilute acid soln, liquid-solid ratio 10:1, and pass into oxygen, at oxygen partial pressure 0.2～1.0MPa, stagnation pressure 0.5～1.5MPa, 100～150 DEG C of extraction temperatures, sulfuric acid concentration 50～150g/L, Oxidation Leaching copper under the leaching condition of extraction time 2～6h, plumbous stay in slag with the form of lead sulfate; After leaching process completes, ore pulp is discharged autoclave, carries out liquid-solid separation, realizes the initial gross separation of metal; The leach liquor of cupric adopts electro-deposition method to reclaim the copper in solution, obtains the cathode copper product that meets GB; Leached mud returns to pyrometallurgical smelting of lead system recoveries and utilizes plumbous, silver-colored, elemental sulfur valuable element.But this technical scheme is Oxidation Leaching copper under full acid system, and high to the corrosion-resistant conditional request of equipment material, the production cost thereupon bringing also can increase; On the other hand, the elemental sulfur that leaching process generates has been sneaked in leached mud, this slag returns in pyrometallurgical smelting of lead system can produce sulfur dioxide flue gas, because the content of sulfurous gas in flue gas is not high, do not reach the condition of the desired sulfur dioxide concentration of relieving haperacidity, manufacturing enterprise is in order to reduce production costs, and general selection directly discharged sky, increased the weight of so again environmental pressure.
Summary of the invention
The object of the present invention is to provide a kind of iron trichloride to process the technique of lead matte.The method adopts FeCl
3extract technology is processed lead matte, utilizes the metallic sulfide in atmospheric oxidation lead matte, and copper enters solution after treatment, and the valuable metals such as plumbous silver return plumbous pyrogenic process system to reclaim with leached mud.This technical process is simple, and the rate of recovery is high and little to the pollution of environment.
Technical scheme of the present invention is as follows:
Iron trichloride is processed a technique for lead matte, it is characterized in that adopting the order of following steps to realize:
1. lead matte pre-treatment
Reclaim lead matte from the plumbous smelting system of pyrogenic process, broken lead matte piece material to granularity is 80～100 orders;
2. normal pressure leaches
By FeCl
3the leach liquor that is mixed with 200-400g/L send leaching vat, to grind pretreated lead matte adds in leach liquor again, the ratio that is 3-10:1 in liquid-solid ratio adds, temperature 50-100 DEG C, pass into continuously air, air flow quantity is 100-160L/h, and stirring velocity is 300-500r/min, and the reaction times is 4-8 hour; In the process of leaching oxidation, plumbous, copper is separately converted to PbCl
2, Cu
2+, wherein PbCl
2sl. sol., the solubleness 20 DEG C time in water is 0.96 gram, and the overwhelming majority can remain in slag, and cupric ion enters solution;
3. liquid-solid separation
After leaching process completes, in ore pulp, add while hot fine coal; The weight proportion of ore pulp and fine coal is controlled at 100:6; Filter, carry out liquid-solid separation, the chlorination lead skim separating through molten soak to process return pyrogenic process system recoveries silver and wait valuable metal;
Because the strainability of elemental sulfur is poor, for accelerating this operation, can add appropriate fine coal, utilize unsaturated olefin in fine coal to improve the effect of settling of sulphur;
4. the heavy copper of displacement
In rich copper leach liquor, add scrap iron, displacement copper wherein, liquid-solid separation, can obtain primary products copper sponge;
5. leach liquor regeneration
4. pass into chlorine in the filtrate after liquid-solid separation to step and make FeCl
2be regenerated as FeCl
3, return to normal pressure and leach step, realize FeCl
3the recycle of leach liquor.
Compared with the existing technology, the present invention has following advantage: adopt wet processing flow process, extraction time is short, and strainability is good, and leach liquor can be recycled, environmentally friendly, is conducive to environment protection; Flow process is short, and equipment is simple, simple to operate; Metal recovery rate is high, and comprehensive utilization degree is large.
Brief description of the drawings
Fig. 1 is FeCl of the present invention
3process the schema of lead matte technique.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing and by embodiment.
Iron trichloride is processed a technique for lead matte, it is characterized in that adopting the order of following steps to realize:
1. lead matte pre-treatment
Reclaim lead matte from the plumbous smelting system of pyrogenic process, broken lead matte piece material to granularity is 80～100 orders;
2. normal pressure leaches
By FeCl
3the leach liquor that is mixed with 200-400g/L send leaching vat, to grind pretreated lead matte adds in leach liquor again, the ratio that is 3-10:1 in liquid-solid ratio adds, temperature 50-100 DEG C, pass into continuously air, air flow quantity is 100-160L/h, and stirring velocity is 300-500r/min, and the reaction times is 4-8 hour; In the process of leaching oxidation, plumbous, copper is separately converted to PbCl
2, Cu
2+, wherein PbCl
2sl. sol., the solubleness 20 DEG C time in water is 0.96 gram, and the overwhelming majority can remain in slag, and cupric ion enters solution;
Wherein the main chemical reaction existing is:
PbS +2FeCl
3 = PbCl
2 + S +2FeCl
2
Cu
2S +4FeCl
3 = 2CuCl
2 + S +4FeCl
2
Ag
2S +2FeCl
3 = 2AgCl+ S +2FeCl
2
FeS +2FeCl
3 = 3FeCl
2 + S
3. liquid-solid separation
After leaching process completes, in ore pulp, add while hot fine coal; The weight proportion of ore pulp and fine coal is controlled at 100:6; To improve strainability, filter, carry out liquid-solid separation, the chlorination lead skim separating through molten soak to process return pyrogenic process system recoveries silver and wait valuable metal;
Because the strainability of elemental sulfur is poor, for accelerating this operation, can add appropriate fine coal, utilize unsaturated olefin in fine coal to improve the effect of settling of sulphur;
4. the heavy copper of displacement
In rich copper leach liquor, add scrap iron, displacement copper wherein, liquid-solid separation, can obtain primary products copper sponge;
Wherein the main chemical reaction existing is:
Cu
2++Fe = Cu +Fe
2+
2Fe
2+ + Cl
2 =2 Cl
-+2Fe
3+
5. leach liquor regeneration
4. pass into chlorine in the filtrate after liquid-solid separation to step and make FeCl
2be regenerated as FeCl
3, return to normal pressure and leach step, realize FeCl
3the recycle of leach liquor.
In order to improve leaching effect, shorten extraction time, when above-mentioned steps passes into air in 2. continuously, add a small amount of hcl acidifying leach liquor, make pH value stabilization 2.5; Under acidic conditions, utilize ferric ion to leach sulfide as oxygenant; In Oxidation Leaching process, the sulphur in lead matte is oxidized to elemental sulfur and transfers in slag, and copper is oxidized enters solution with ionic state, and lead is stayed in slag with form and the gold and silver of lead chloride.
In above-mentioned steps ore pulp 3., add while hot fine coal; Can improve strainability;
Above-mentioned steps is 3. described moltenly soaks that to process be to add thermosol with saturated nacl aqueous solution to soak chlorination lead skim, controls temperature 70-100 DEG C, and the concentration of sodium-chlor is 100-400g/L, reaction times 1-3 hour, and after leaching process completes, filtered while hot, then carry out liquid-solid separation; Leached mud returns pyrogenic process system recoveries silver and waits valuable metal.
Embodiment 1
The chemical composition of certain factory's lead matte is as follows:
Pb：7.83%，Cu： 29.38%，Fe：36.22%，S：20.07%，SiO
2：3.81%，CaO：1.14%，Ag：0.0993%，Zn：1.11%，Te：0.11%，Se：0.21%。Implementation method as shown in Figure 1, was ground lead matte after 80 mesh sieves, added the FeCl configuring
3leach liquor, and pass into air, stirring velocity is 300r/min, normal pressure leaches.Its leaching condition is: adopt FeCl
3solution leaches, FeCl
3concentration 300g/L, liquid-solid ratio 5:1,89 DEG C of temperature, pass into air continuously, and stirring velocity is 300r/min, and the reaction times is 4 hours.The rate of recovery 84.39% of copper.
Embodiment 2
The chemical composition of certain factory's lead matte is as follows:
Pb：7.83%，Cu： 29.38%，Fe：22.60%，S：19.85%，SiO
2：3.02%，CaO：1.54%，Ag：0.1022%， Te：0.19%，Se：0.31%。Implementation method as shown in Figure 1, will add the FeCl configuring after the abrasive lapping of lead matte piece
3leach liquor, and pass into air, stirring velocity is 500r/min, and normal pressure leaches, and the operation of leaching copper is identical with embodiment 1, and its leaching condition is: adopt FeCl
3solution leaches, FeCl
3concentration 350g/L, liquid-solid ratio 5:1,95 DEG C of temperature, pass into air continuously, and stirring velocity is 350r/min, and the reaction times is 8 hours.The rate of recovery 88.07% of copper.
Embodiment 3
The chemical composition of certain factory's lead matte is as follows:
Pb：7.67%，Cu： 29.72%，Fe：19.53%，S：20.08%，SiO
2：4.52%，CaO：0.97%，Ag：0.0633%， Te：0.17%，Se：0.26%。Implementation method as shown in Figure 1, will add the FeCl configuring after the abrasive lapping of lead matte piece
3leach liquor, and pass into air, stirring velocity is 300r/min, and normal pressure leaches, and the operation of leaching copper is identical with embodiment 1, and its leaching condition is: adopt FeCl
3solution leaches, FeCl
3concentration 400g/L, liquid-solid ratio 5:1,95 DEG C of temperature, pass into air continuously, and stirring velocity is 300r/min, and the reaction times is 7.5 hours.The rate of recovery 92.6% of copper.
Claims (1)
1. iron trichloride is processed a technique for lead matte, it is characterized in that adopting the order of following steps to realize:
1. lead matte pre-treatment
Reclaim lead matte from the plumbous smelting system of pyrogenic process, broken lead matte piece material to granularity is 80～100 orders;
2. normal pressure leaches
By FeCl
3the leach liquor that is mixed with 200-400g/L send leaching vat, to grind pretreated lead matte adds in leach liquor again, the ratio that is 3-10:1 in liquid-solid ratio adds, temperature 50-100 DEG C, pass into continuously air, air flow quantity is 100-160L/h, and stirring velocity is 300-500r/min, and the reaction times is 4-8 hour; In the process of leaching oxidation, plumbous, copper is separately converted to PbCl
2, Cu
2+, wherein PbCl
2sl. sol., the solubleness 20 DEG C time in water is 0.96 gram, and the overwhelming majority can remain in slag, and cupric ion enters solution;
3. liquid-solid separation
After leaching process completes, in ore pulp, add while hot fine coal; The weight proportion of ore pulp and fine coal is controlled at 100:6; Filter, carry out liquid-solid separation, the chlorination lead skim separating through molten soak to process return pyrogenic process system recoveries silver valuable metal;
Because the strainability of elemental sulfur is poor, for accelerating this operation, add appropriate fine coal, utilize unsaturated olefin in fine coal to improve the effect of settling of sulphur;
4. the heavy copper of displacement
In rich copper leach liquor, add scrap iron, displacement copper wherein, liquid-solid separation, obtains primary products copper sponge;
5. leach liquor regeneration
4. pass into chlorine in the filtrate after liquid-solid separation to step and make FeCl
2be regenerated as FeCl
3, return to normal pressure and leach step, realize FeCl
3the recycle of leach liquor;
The chemical composition of described lead matte is as follows:
Pb：7.83%，Cu： 29.38%，Fe：36.22%，S：20.07%，SiO
2：3.81%，CaO：1.14%，Ag：0.0993%，Zn：1.11%，Te：0.11%，Se：0.21%；
Or the chemical composition of described lead matte is as follows:
Pb：7.83%，Cu： 29.38%，Fe：22.60%，S：19.85%，SiO
2：3.02%，CaO：1.54%，Ag：0.1022%， Te：0.19%，Se：0.31%；
Or the chemical composition of described lead matte is as follows:
Pb：7.67%，Cu： 29.72%，Fe：19.53%，S：20.08%，SiO
2：4.52%，CaO：0.97%，Ag：0.0633%， Te：0.17%，Se：0.26%。
2. a kind of iron trichloride according to claim 1 is processed the technique of lead matte, is further characterized in that: when described step passes into air in 2. continuously, add a small amount of hcl acidifying leach liquor, make pH value stabilization 2.5; Under acidic conditions, utilize ferric ion to leach sulfide as oxygenant; In Oxidation Leaching process, the sulphur in lead matte is oxidized to elemental sulfur and transfers in slag, and copper is oxidized enters solution with ionic state, and lead is stayed in slag with form and the gold and silver of lead chloride.
3. a kind of iron trichloride according to claim 1 is processed the technique of lead matte, be further characterized in that: step is 3. described moltenly soaks that to process be to add thermosol with saturated nacl aqueous solution to soak chlorination lead skim, control temperature 70-100 DEG C, the concentration of sodium-chlor is 100-400g/L, reaction times 1-3 hour, after leaching process completes, filtered while hot, then carry out liquid-solid separation; Leached mud returns pyrogenic process system recoveries silver valuable metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110270200.5A CN102994744B (en) | 2011-09-14 | 2011-09-14 | Technology for processing lead copper matte by ferric chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110270200.5A CN102994744B (en) | 2011-09-14 | 2011-09-14 | Technology for processing lead copper matte by ferric chloride |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102994744A CN102994744A (en) | 2013-03-27 |
| CN102994744B true CN102994744B (en) | 2014-10-22 |
Family
ID=47923849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110270200.5A Expired - Fee Related CN102994744B (en) | 2011-09-14 | 2011-09-14 | Technology for processing lead copper matte by ferric chloride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102994744B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104004907A (en) * | 2014-06-06 | 2014-08-27 | 郴州市金贵银业股份有限公司 | Method for separating copper from lead matte and comprehensively utilizing lead matte |
| CN114350956B (en) * | 2021-12-31 | 2023-09-19 | 红河学院 | A method of enriching precious metals from impurity materials |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225476A (en) * | 2008-02-22 | 2008-07-23 | 昆明理工大学 | Process for recovering copper from lead matte |
| CN102051478A (en) * | 2010-11-28 | 2011-05-11 | 郴州市金贵银业股份有限公司 | Wet process for treating lead copper matte |
-
2011
- 2011-09-14 CN CN201110270200.5A patent/CN102994744B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225476A (en) * | 2008-02-22 | 2008-07-23 | 昆明理工大学 | Process for recovering copper from lead matte |
| CN102051478A (en) * | 2010-11-28 | 2011-05-11 | 郴州市金贵银业股份有限公司 | Wet process for treating lead copper matte |
Non-Patent Citations (2)
| Title |
|---|
| 三氯化铁浸出法处理湘东钨矿的铜钨中矿;无;《湖南冶金》;19751231(第2期);61-62 * |
| 无.三氯化铁浸出法处理湘东钨矿的铜钨中矿.《湖南冶金》.1975,(第2期),61-62. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102994744A (en) | 2013-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100404708C (en) | Production process of recovering Au Ag Cu As S from arsenic-containing carbon-gold concentrate by two-stage roasting method | |
| CN102051478B (en) | Wet process for treating lead copper matte | |
| CN102534255B (en) | Wet-fire combined smelting process for antimony or bismuth | |
| CN101113490B (en) | A method for leaching indium from indium sulfide concentrate | |
| CN103667720B (en) | Method for recovering zinc, indium, iron, and lead from high-iron zinc oxide mixture smelted with zinc | |
| CN104404261A (en) | Method of performing chloridizing roasting to synchronously reduce and recover gold and iron from gold concentrate cyanide tailings | |
| CN103555962B (en) | Method for comprehensive recovery of selenium, vanadium and silver from vanadium-silver-selenium polymetallic ore by wet method | |
| CN103695662B (en) | Comprehensive utilization method of slag iron concentrates of wet-type zinc smelting furnace | |
| CN105861852A (en) | Cyaniding-free gold extraction method | |
| CN104017991A (en) | Process for efficiently and selectively separating copper in lead copper matte | |
| CN103526019B (en) | A method for comprehensive recovery of vanadium, selenium and silver from polymetallic associated vanadium ore | |
| CN106498181A (en) | Green metallurgy extraction method for lead-zinc oxide ore | |
| CN102296180B (en) | Method for separating tungsten, molybdenum and bismuth in bismuth sulfide ore concentrate | |
| CN110777264A (en) | Method suitable for independent smelting of various complex gold concentrates | |
| CN110564964A (en) | Dressing and smelting combined process for efficiently utilizing copper-zinc ore | |
| CN105200242B (en) | A kind of method that cadmium is reclaimed from containing arsenic refining lead oxygen bottom blown furnace cigarette ash | |
| CN109930007A (en) | A kind of processing method of Copper making electric dust | |
| CN110157924B (en) | Method for secondary zinc enrichment of low-grade high-oxidation-rate oxygen-sulfur mixed zinc ore | |
| CN1204277C (en) | Method for extracting copper from copper-containing sulfide minerals | |
| CN103484694A (en) | Method for extracting bismuth from copper-bismuth concentrate | |
| CN101224443A (en) | A kind of comprehensive utilization method of iron sulfide mineral | |
| CN104087971B (en) | Method for treating lead matte | |
| CN108265177B (en) | A kind of method of zinc hydrometallurgy kiln slag and waste acid comprehensive utilization | |
| CN102994744B (en) | Technology for processing lead copper matte by ferric chloride | |
| CN105110300A (en) | Method for extracting manganese and sulfur from composite manganese mine containing manganese sulfide |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20200914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |