CN106995886A - A kind of silicate-type aoxidizes the Rapid Leaching method of lead concentrate - Google Patents
A kind of silicate-type aoxidizes the Rapid Leaching method of lead concentrate Download PDFInfo
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- CN106995886A CN106995886A CN201710290957.8A CN201710290957A CN106995886A CN 106995886 A CN106995886 A CN 106995886A CN 201710290957 A CN201710290957 A CN 201710290957A CN 106995886 A CN106995886 A CN 106995886A
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- silicate
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- lead concentrate
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- 238000002386 leaching Methods 0.000 title claims abstract description 74
- 239000012141 concentrate Substances 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 35
- 230000003647 oxidation Effects 0.000 claims abstract description 34
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 34
- 239000002253 acid Substances 0.000 claims abstract description 30
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 28
- 239000011707 mineral Substances 0.000 claims abstract description 28
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000007864 aqueous solution Substances 0.000 claims abstract description 20
- 238000010494 dissociation reaction Methods 0.000 claims abstract description 10
- 230000005593 dissociations Effects 0.000 claims abstract description 10
- 239000000178 monomer Substances 0.000 claims abstract description 10
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 34
- 229910000464 lead oxide Inorganic materials 0.000 claims description 23
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims description 23
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 17
- 239000000395 magnesium oxide Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 11
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 9
- 239000011575 calcium Substances 0.000 claims description 9
- 229910052791 calcium Inorganic materials 0.000 claims description 9
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000292 calcium oxide Substances 0.000 claims description 9
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 9
- 238000004070 electrodeposition Methods 0.000 claims description 9
- 239000010453 quartz Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000006213 oxygenation reaction Methods 0.000 description 8
- QSLPNSWXUQHVLP-UHFFFAOYSA-N $l^{1}-sulfanylmethane Chemical group [S]C QSLPNSWXUQHVLP-UHFFFAOYSA-N 0.000 description 5
- 238000005188 flotation Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- MFEVGQHCNVXMER-UHFFFAOYSA-L 1,3,2$l^{2}-dioxaplumbetan-4-one Chemical compound [Pb+2].[O-]C([O-])=O MFEVGQHCNVXMER-UHFFFAOYSA-L 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910052949 galena Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 239000012535 impurity Substances 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
- HWSZZLVAJGOAAY-UHFFFAOYSA-L lead(II) chloride Chemical compound Cl[Pb]Cl HWSZZLVAJGOAAY-UHFFFAOYSA-L 0.000 description 1
- XCAUINMIESBTBL-UHFFFAOYSA-N lead(ii) sulfide Chemical compound [Pb]=S XCAUINMIESBTBL-UHFFFAOYSA-N 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000012991 xanthate 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
- C22B13/00—Obtaining lead
- C22B13/04—Obtaining lead by wet processes
-
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/16—Extraction of metal compounds from ores or concentrates by wet processes by leaching in organic solutions
- C22B3/1608—Leaching with acyclic or carbocyclic agents
- C22B3/1616—Leaching with acyclic or carbocyclic agents of a single type
- C22B3/165—Leaching with acyclic or carbocyclic agents of a single type with organic acids
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/18—Electrolytic production, recovery or refining of metals by electrolysis of solutions of lead
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a kind of Rapid Leaching method that silicate-type aoxidizes lead concentrate, belong to ore dressing metallurgical technology field.It is levigate to the wherein monomer dissociation of silicate gangue mineral more than 85% that silicate-type is aoxidized lead concentrate by the present invention；It is under the conditions of 40 ~ 60 DEG C, oxidation lead concentrate to be added in the leaching agent pyrovinic acid aqueous solution and is stirred 15 ~ 30min of leaching, efficient, Rapid Leaching that silicate-type aoxidizes lead concentrate can be achieved, quality raw materials are provided for subsequent technique in temperature.Reaction condition of the present invention is gentle, technological process is simple and convenient to operate, leaching velocity is fast, extraction time is short, leaching cost, low, leaching efficiency is high, with good environmental benefit and economic benefit.
Description
Technical field
The present invention relates to a kind of Rapid Leaching method that silicate-type aoxidizes lead concentrate, belong to ore dressing metallurgical technology field.
Background technology
Lead is a kind of important non-ferrous metal, and its status in the development of the national economy is increasingly important.Lead is in nature
Mainly exist in the form of sulfide and oxide, the common vulcanized lead mineral that there is commercial mining to be worth have galena, oxygen
Changing lead minerals has cerussite, lead vanadium etc..For a long time, lead is smelted always using vulcanized lead mineral as raw material, however, with limited
Vulcanization lead resource is constantly consumed, and vulcanized lead mineral can not meet growing lead demand, in order to meet national economy to lead
The need for metal, the external dependence degree of lead is reduced, the Efficient Development of lead oxide ore and utilization are by as supplement lead metal supply
Important channel.
At present, vulcanization-xanthate floatation be enrichment oxidation lead minerals main method, but the method exist curing efficiency it is low,
Sulfur product is easy to fall off in whipping process and in aerobic or heating system the shortcomings of easy " decay "；Meanwhile, lead oxide ore
The consumption of vulcanizing agent is difficult to control in floatation process, and vulcanizing agent consumption is not enough or is all excessively unfavorable to follow-up flotation；
In addition, lead oxide ore can dissolve in floatation process, dissolved constituent can be caused to gangue minerals such as the silicate in ore
Non-selective activation；These factors cause contained gangue mineral too high levels in flotation concentrate product, and lead grade is relatively low.
For low-grade high silicon lead concentrate, have that waste residue amount is big using pyrogenic attack, high energy consumption, labor intensity compared with
Greatly, the shortcomings of environmental pollution is serious.Hydrometallurgy has the advantages such as production cost is low, simple to operate, metal recovery rate is high, but adopts
During with sulfuric acid and hydrochloric acid as leaching agent, lead sulfate and precipitation of lead chloride can be generated, and the nitre that nitric acid is generated with lead oxide mineral
Lead plumbate is unstable；In addition, having substantial amounts of siliceous gangue mineral in oxidation lead concentrate, alkaline leaching is also not suitable for.It would therefore be highly desirable to develop
Efficiently, low energy, the lead leaching technology of cleaning.
The content of the invention
There is provided the Rapid Leaching side that a kind of silicate-type aoxidizes lead concentrate for the problem of present invention exists for prior art
Method, this method is directed to based on silicate gangue mineral, leaded relatively low lead oxide flotation concentrate, uses pyrovinic acid for leaching
Agent, make its realized under the conditions of atmospheric low-temperature efficiently, Rapid Leaching.
A kind of silicate-type aoxidizes the Rapid Leaching method of lead concentrate, comprises the following steps that：
（1）Silicate is obtained to the wherein monomer dissociation of silicate gangue mineral more than 85% by silicate-type oxidation lead concentrate is levigate
Type lead oxide fine ore；
（2）Under the conditions of temperature is 40 ~ 60 DEG C, by step（1）Gained silicate-type lead oxide fine ore is added in leaching agent
Carry out 15 ~ 30min of leaching and obtain leachate and leached mud, wherein leaching agent is the pyrovinic acid aqueous solution；
（3）Leachate is extracted, electrodeposition reclaims metallic lead；
It is calculated in mass percent, the step（1）Contain lead 22 ~ 45%, small amounts calcium and oxygen in silicate-type oxidation lead concentrate
Change magnesium, the wherein oxygenation efficiency of lead is more than 96%, and the total amount of calcium oxide and magnesia is less than 3.5%；In silicate-type oxidation lead concentrate
The main gangue mineral of presence is quartz and silicate；
The step（2）The concentration of pyrovinic acid is 35 ~ 120 g/L in the middle pyrovinic acid aqueous solution；
The step（2）The solid-to-liquid ratio g of middle silicate-type lead oxide fine ore and leaching agent:L is (1:4)~(3:7)；
The flotation concentrate that the silicate-type aoxidizes lead concentrate to be enriched with after floatation removal of impurities；
The beneficial effects of the invention are as follows：
（1）The reaction condition of the inventive method is gentle, technological process is simple, it is not necessary to high temperature, pressurized equipment；
（2）Leaching agent corrosivity that the present invention is used is small, catalytic activity is high and toxicity is low, biodegradable, environmentally friendly；
（3）The leaching agent respond that the inventive method is used is strong, and leaching velocity is fast, and extraction time is short, and leaching efficiency is high, can be real
Existing silicate-type aoxidizes efficient, the Rapid Leaching of lead concentrate；Extraction temperature is not higher than 60 DEG C, and extraction time is no more than 30min；
（4）Leaching agent consumption needed for leaching process of the present invention is few, and leaching cost is low, with good economy.
Brief description of the drawings
Fig. 1 is process chart of the invention.
Embodiment
The present invention is described in further detail with reference to embodiment, but protection scope of the present invention is not limited
In the content.
Embodiment 1：As shown in figure 1, a kind of silicate-type aoxidizes the Rapid Leaching method of lead concentrate, comprise the following steps that：
（1）Silicate-type is obtained to the wherein monomer dissociation of silicate gangue mineral 91.0% by silicate-type oxidation lead concentrate is levigate
Lead oxide fine ore；Wherein be calculated in mass percent, silicate-type oxidation lead concentrate in containing lead 22.2%, small amounts calcium and
Magnesia, the oxygenation efficiency of lead is 97%, and the total amount of calcium oxide and magnesia is 2.9%；Present in silicate-type oxidation lead concentrate
Main gangue mineral is quartz and silicate；
（2）Under the conditions of temperature is 45 DEG C, by step（1）Gained silicate-type lead oxide fine ore is added in leaching agent and carried out
Leach 30min and obtain leachate and leached mud, wherein leaching agent is methyl sulphur in the pyrovinic acid aqueous solution, the pyrovinic acid aqueous solution
The concentration of acid is 60 g/L, and the solid-to-liquid ratio for aoxidizing lead concentrate and leaching agent is 7:18；
（3）Leachate is further extracted, electrodeposition reclaims metallic lead；
The leaching rate of lead metal is 90.6% in the present embodiment.
Embodiment 2：As shown in figure 1, a kind of silicate-type aoxidizes the Rapid Leaching method of lead concentrate, comprise the following steps that：
（1）Silicate-type is obtained to the wherein monomer dissociation of silicate gangue mineral 89.0% by silicate-type oxidation lead concentrate is levigate
Lead oxide fine ore；Wherein be calculated in mass percent, silicate-type oxidation lead concentrate in containing lead 35.4%, small amounts calcium and
Magnesia, the oxygenation efficiency of lead is 98%, and the total amount of calcium oxide and magnesia is 1.8%；Present in silicate-type oxidation lead concentrate
Main gangue mineral is quartz and silicate；
（2）Under the conditions of temperature is 50 DEG C, by step（1）Gained silicate-type lead oxide fine ore is added in leaching agent and carried out
Leach 25min and obtain leachate and leached mud, wherein leaching agent is methyl sulphur in the pyrovinic acid aqueous solution, the pyrovinic acid aqueous solution
The concentration of acid is 85 g/L, oxidation lead concentrate and leaching agent solid-to-liquid ratio g:L is 13:37；
（3）Leachate is further extracted, electrodeposition reclaims metallic lead；
The leaching rate of lead metal is 92.3% in the present embodiment.
Embodiment 3：As shown in figure 1, a kind of silicate-type aoxidizes the Rapid Leaching method of lead concentrate, comprise the following steps that：
（1）Silicate-type is obtained to the wherein monomer dissociation of silicate gangue mineral 88.0% by silicate-type oxidation lead concentrate is levigate
Lead oxide fine ore；Wherein be calculated in mass percent, silicate-type oxidation lead concentrate in containing lead 42.1%, small amounts calcium and
Magnesia, the oxygenation efficiency of lead is 96.5%, and the total amount of calcium oxide and magnesia is 2.2%；Exist in silicate-type oxidation lead concentrate
Main gangue mineral for quartz and silicate；
（2）Under the conditions of temperature is 55 DEG C, by step（1）Gained silicate-type lead oxide fine ore is added in leaching agent and carried out
Leach 20min and obtain leachate and leached mud, wherein leaching agent is methyl sulphur in the pyrovinic acid aqueous solution, the pyrovinic acid aqueous solution
The concentration of acid is 105g/L, the solid-to-liquid ratio g of oxidation lead concentrate and the leaching agent pyrovinic acid aqueous solution:L is 3:10；
（3）Leachate is further extracted, electrodeposition reclaims metallic lead；
The leaching rate of lead metal is 92.6% in the present embodiment.
Embodiment 4：As shown in figure 1, a kind of silicate-type aoxidizes the Rapid Leaching method of lead concentrate, comprise the following steps that：
（1）By the monomer dissociation of silicate-type lead oxide fine grinding to wherein silicate gangue mineral 85.5%；Wherein with quality
Contain lead 22.3%, small amounts calcium and magnesia in percentage meter, silicate-type oxidation lead concentrate, the oxygenation efficiency of wherein lead is
97.5%, the total amount of calcium oxide and magnesia is 3.4%；Main gangue mineral present in silicate-type oxidation lead concentrate is quartz
And silicate；
（2）Under the conditions of temperature is 40 DEG C, by step（1）Products therefrom is added to progress leaching 30min in leaching agent and soaked
Go out liquid and leached mud, wherein leaching agent is the pyrovinic acid aqueous solution；Wherein the concentration of pyrovinic acid is in the pyrovinic acid aqueous solution
The solid-to-liquid ratio g of 35g/L, oxidation lead concentrate and leaching agent:L is 1:4；
（3）Leachate is further extracted, electrodeposition reclaims metallic lead；
The leaching rate of lead metal is 90.1% in the present embodiment.
Embodiment 5：As shown in figure 1, a kind of silicate-type aoxidizes the Rapid Leaching method of lead concentrate, comprise the following steps that：
（1）By the monomer dissociation of silicate-type lead oxide fine grinding to wherein silicate gangue mineral 90.0%；Wherein with quality
Contain lead 44.6%, small amounts calcium and magnesia in percentage meter, silicate-type oxidation lead concentrate, the oxygenation efficiency of wherein lead is
98.5%, the total amount of calcium oxide and magnesia is 2.4%；Main gangue mineral present in silicate-type oxidation lead concentrate is quartz
And silicate；
（2）Under the conditions of temperature is 60 DEG C, by step（1）Products therefrom is added to progress leaching 15min in leaching agent and soaked
Go out liquid and leached mud, wherein leaching agent is the pyrovinic acid aqueous solution；Wherein the concentration of pyrovinic acid is in the pyrovinic acid aqueous solution
The solid-to-liquid ratio g of 120g/L, oxidation lead concentrate and leaching agent:L is 3:7；
（3）Leachate is further extracted, electrodeposition reclaims metallic lead；
The leaching rate of lead metal is 91.7% in the present embodiment.
Embodiment 6：As shown in figure 1, a kind of silicate-type aoxidizes the Rapid Leaching method of lead concentrate, comprise the following steps that：
（1）Silicate-type is obtained to the wherein monomer dissociation of silicate gangue mineral 86.5% by silicate-type oxidation lead concentrate is levigate
Lead oxide fine ore；Wherein be calculated in mass percent, silicate-type oxidation lead concentrate in containing lead 29.6%, small amounts calcium and
Magnesia, the oxygenation efficiency of lead is 97.5%, and the total amount of calcium oxide and magnesia is 2.7%；Exist in silicate-type oxidation lead concentrate
Main gangue mineral for quartz and silicate；
（2）Under the conditions of temperature is 60 DEG C, by step（1）Gained silicate-type lead oxide fine ore is added in leaching agent and carried out
Leach 25min and obtain leachate and leached mud, wherein leaching agent is methyl sulphur in the pyrovinic acid aqueous solution, the pyrovinic acid aqueous solution
The concentration of acid is 110g/L, oxidation lead concentrate and leaching agent solid-to-liquid ratio g:L is 3:7；
（3）Leachate is further extracted, electrodeposition reclaims metallic lead；
The leaching rate of lead metal is 91.3% in the present embodiment.
Embodiment 7：As shown in figure 1, a kind of silicate-type aoxidizes the Rapid Leaching method of lead concentrate, comprise the following steps that：
（1）Silicate-type is obtained to the wherein monomer dissociation of silicate gangue mineral 90.5% by silicate-type oxidation lead concentrate is levigate
Lead oxide fine ore；Wherein be calculated in mass percent, silicate-type oxidation lead concentrate in containing lead 33.7%, small amounts calcium and
Magnesia, the oxygenation efficiency of lead is 98.5%, and the total amount of calcium oxide and magnesia is 1.3%；Exist in silicate-type oxidation lead concentrate
Main gangue mineral for quartz and silicate；
（2）Under the conditions of temperature is 57 DEG C, by step（1）Gained silicate-type lead oxide fine ore is added in leaching agent and carried out
Leach 20min and obtain leachate and leached mud, wherein leaching agent is methyl sulphur in the pyrovinic acid aqueous solution, the pyrovinic acid aqueous solution
The concentration of acid is 95g/L, oxidation lead concentrate and leaching agent solid-to-liquid ratio g:L is 1:3；
（3）Leachate is further extracted, electrodeposition reclaims metallic lead；
The leaching rate of lead metal is 93.1% in the present embodiment.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (4)
1. a kind of silicate-type aoxidizes the Rapid Leaching method of lead concentrate, it is characterised in that comprise the following steps that：
（1）Silicate is obtained to the wherein monomer dissociation of silicate gangue mineral more than 85% by silicate-type oxidation lead concentrate is levigate
Type lead oxide fine ore；
（2）It it is 40 ~ 60 DEG C, under stirring condition in temperature, by step（1）Gained silicate-type lead oxide fine ore is added to leaching
15 ~ 30min of leaching is carried out in agent and obtains leachate and leached mud, wherein leaching agent is the pyrovinic acid aqueous solution；
（3）Leachate is extracted, electrodeposition reclaims metallic lead.
2. silicate-type according to claim 1 aoxidizes the Rapid Leaching method of lead concentrate, it is characterised in that：With quality hundred
Fraction meter, step（1）Contain the oxygen of lead 22 ~ 45%, small amounts calcium and magnesia, wherein lead in silicate-type oxidation lead concentrate
Rate is more than 96%, and the total amount of calcium oxide and magnesia is less than 3.5%；Main gangue ore deposit present in silicate-type oxidation lead concentrate
Thing is quartz and silicate.
3. silicate-type according to claim 1 aoxidizes the Rapid Leaching method of lead concentrate, it is characterised in that：Step（2）
The concentration of pyrovinic acid is 35 ~ 120 g/L in the middle pyrovinic acid aqueous solution.
4. silicate-type according to claim 1 aoxidizes the Rapid Leaching method of lead concentrate, it is characterised in that：Step（2）
The solid-to-liquid ratio g of middle silicate-type lead oxide fine ore and leaching agent:L is (1:4)~(3:7).
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| CN201710290957.8A CN106995886A (en) | 2017-04-28 | 2017-04-28 | A kind of silicate-type aoxidizes the Rapid Leaching method of lead concentrate |
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| CN201710290957.8A CN106995886A (en) | 2017-04-28 | 2017-04-28 | A kind of silicate-type aoxidizes the Rapid Leaching method of lead concentrate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019071642A1 (en) * | 2017-10-11 | 2019-04-18 | 北京科技大学 | Method for recovering lead from waste lead-acid battery lead paste in wet process |
| CN111659530A (en) * | 2020-06-16 | 2020-09-15 | 昆明理工大学 | Method for dressing, smelting, recovering and separating continuous growth type copper-lead-zinc sulfide ore |
| CN112877543A (en) * | 2021-01-14 | 2021-06-01 | 华中科技大学 | Method for recovering lead from lead slag |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019071642A1 (en) * | 2017-10-11 | 2019-04-18 | 北京科技大学 | Method for recovering lead from waste lead-acid battery lead paste in wet process |
| US11502344B2 (en) | 2017-10-11 | 2022-11-15 | University Of Science And Technology Beijing | Hydrometallurgical method for recycling lead from spent lead-acid battery paste |
| CN111659530A (en) * | 2020-06-16 | 2020-09-15 | 昆明理工大学 | Method for dressing, smelting, recovering and separating continuous growth type copper-lead-zinc sulfide ore |
| CN111659530B (en) * | 2020-06-16 | 2021-03-23 | 昆明理工大学 | Method for dressing, smelting, recovering and separating continuous growth type copper-lead-zinc sulfide ore |
| CN112877543A (en) * | 2021-01-14 | 2021-06-01 | 华中科技大学 | Method for recovering lead from lead slag |
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