CN106756045A - A kind of method that copper is leached from lead copper matte - Google Patents
A kind of method that copper is leached from lead copper matte Download PDFInfo
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- CN106756045A CN106756045A CN201611193597.1A CN201611193597A CN106756045A CN 106756045 A CN106756045 A CN 106756045A CN 201611193597 A CN201611193597 A CN 201611193597A CN 106756045 A CN106756045 A CN 106756045A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
- C22B7/007—Wet processes by acid leaching
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- 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
- C22B13/045—Recovery from waste materials
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- 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
- C22B15/0063—Hydrometallurgy
- C22B15/0065—Leaching or slurrying
- C22B15/0067—Leaching or slurrying with acids or salts thereof
- C22B15/0071—Leaching or slurrying with acids or salts thereof containing sulfur
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- 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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Abstract
The method of copper is leached from lead copper matte the invention discloses a kind of, including to sulfuric acid is added in lead copper matte, obtains slurry, slurry is heated up to steam is passed through in slurry；To adding additive in the slurry, obtain pulp material, then stop being passed through steam in the pulp material, Oxidation Leaching is carried out to being passed through oxygen in the pulp material again, until the temperature of the pulp material no longer rises, product slurry is obtained, by the product slurries filtration, leached mud and the leachate containing copper is obtained.What the present invention was provided leaches the method for copper with lead copper matte as raw material from lead copper matte, precise control reaction condition is heated by steam, so as to improve the leaching rate of copper.Therefore, the method that copper is leached from lead copper matte that the present invention is provided is strong to adaptability to raw material, flow and simple to operate, and copper leaching rate is high, small to atmosphere pollution, can improve the recovery utilization rate of copper in lead copper matte, so as to avoid the waste of copper resource.
Description
Technical field
The present invention relates to metal technical field of wet metallurgy, and in particular to a kind of method that copper is leached from lead copper matte.
Background technology
When lead copper matte is pyrogenic attack in lead smelting process produced by (such as bottom convertor, side-blown converter, blast furnace, reverberatory furnace)
Accessory substance, is mostly PbS, Cu2The eutectic of S, FeS sulfides.Because material composition is different with operating duty, each work of lead is refined
Sequence produces that lead copper matte composition fluctuation range is very big, and lead content and copper content fluctuate between 1~45% and 10~70% respectively, such as
Fruit sells to metallurgy of copper enterprise as copper raw material, and lead metal is without charge, and the valuation coefficient of the metal such as gold, silver, copper is not also high,
Cause the loss economically of lead smelting enterprise.
All the time, due to complicated component, most of be to take to carry out blowing recovery copper in copper converter to lead copper matte, but
Be processed using the method there is lead copper matte high energy consumption, metal recovery rate bottom, environmental pollution is serious, operating condition is severe etc. asks
Topic.
The content of the invention
In view of this, it is an object of the invention to propose a kind of method that copper is leached from lead copper matte, to improve the leaching of copper
Extracting rate.
Based on above-mentioned purpose, the method that copper is leached from lead copper matte that the present invention is provided is comprised the following steps：
1) to sulfuric acid is added in lead copper matte, slurry is obtained, slurry is heated up to steam is passed through in slurry；
2) to additive is added in the slurry, pulp material is obtained, then stops being passed through steam in the pulp material, then
Oxidation Leaching is carried out to oxygen is passed through in the pulp material, until the temperature of the pulp material no longer rises, product is obtained
Slurry, by the product slurries filtration, obtains leached mud and the leachate containing copper.
In some embodiments of the invention, the sulfuric acid and the liquid-solid ratio of lead copper matte are 4~10:1 cubic metre/ton, institute
The concentration for stating sulfuric acid is 100~250g/L.
In some embodiments of the invention, in the step 1) in, slurry is warming up to 50 to steam is passed through in slurry
~70 DEG C, while stirring 1~2 hour.
In some embodiments of the invention, the additive is selected from ligninsulfonate, and the addition of the additive is
The 1~5% of lead copper matte dry weight.
In some embodiments of the invention, the additive is selected from lignin, wooden calcium sulfonate, wooden sodium sulfonate, wood
At least one in matter sulfonic acid magnesium.
In some embodiments of the invention, the step 2) include：
To additive is added in the slurry, pulp material is obtained, the pulp material is pumped into autoclave；
To steam is passed through in pulp material, the temperature of pulp material is set to rise to 70~90 DEG C；
Stop to being passed through steam in the pulp material, then to being passed through oxygen in the pulp material, and control partial pressure of oxygen≤
0.2MPa, while control warming temperature difference is per hour≤20 DEG C, until the temperature of the pulp material no longer rises, obtains anti-
Answer product slurry；
By the product slurries filtration, leached mud and the leachate containing copper are obtained.
In some embodiments of the invention, when reaction under high pressure temperature in the kettle no longer rises, progressively increase oxygen and be depressed into
0.2~0.6MPa, temperature still no longer rises, and reaction terminates, and obtains product slurry.
In some embodiments of the invention, pumped into autoclave in first 1~10 minute by the pulp material, will
The additive is added in slurry, obtains pulp material.
In some embodiments of the invention, the acidity of the leachate is 30~50g/L.
In some embodiments of the invention, by weight, the content of the lead copper matte is lead：1~45%；Copper：10~
70%；Sulphur：1~30%；Silver 0.01~2%；Iron：1~30%.
From the above it can be seen that the method for leaching copper from lead copper matte that the present invention is provided is with lead copper matte as raw material,
Precise control reaction condition is heated by steam, the present invention uses steam mode of heating, solution bottom is led to jet chimney, drum
Enter high temperature and high pressure steam, in addition to carrying out steep temperature rise to reaction liquid, also drive solution to accelerate, the high steam of entrance
Reaction solution forward reaction can be promoted, so as to improve the leaching rate of copper.Therefore, the side that copper is leached from lead copper matte that the present invention is provided
Method is strong to adaptability to raw material, flow and simple to operate, and copper leaching rate is high, small to atmosphere pollution, can improve copper in lead copper matte
Recovery utilization rate, so as to avoid the waste of copper resource.And using the method that the present invention is provided can also solve equipment investment it is big,
The problem of troublesome maintenance and complex operation.
Brief description of the drawings
Fig. 1 is the process chart that the embodiment of the present invention leaches copper from lead copper matte.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with specific embodiment, and reference
Accompanying drawing, the present invention is described in more detail.
Embodiment 1
Referring to Fig. 1, it is the process chart that the embodiment of the present invention leaches copper from lead copper matte.As one of the invention
Embodiment, the method that copper is leached from lead copper matte is comprised the following steps.
1) 2.3 tons of lead copper mattes are weighed, is sequentially passed through that tiger's jaw is broken, after ball mill crushes, is obtained lead copper matte powder；Wherein,
By weight, lead copper matte composition is：Pb:2.45%, S:17.62%, Cu:26.81%, Fe:21.16%.
2) sulfuric acid is added to by lead copper matte powder, wherein, the concentration of sulfuric acid is 150g/L, and addition is 18.4 cubic metres,
Stir, obtain slurry；To steam is passed through in slurry, slurry is set to be warming up to 60 DEG C, while mixing time 1 hour；Pumping into
2 minutes before autoclave, to 30Kg wooden calcium sulfonates are added in slurry, stir, obtain pulp material；Need explanation
It is that the step can be carried out in surge tank.
3) pulp material is pumped into autoclave, to steam is passed through in pulp material, the temperature of pulp material is risen to 80 DEG C,
Then stop being passed through steam, then Oxidation Leaching is carried out to oxygen is passed through in pulp material, and control partial pressure of oxygen≤0.15MPa, be passed through
Can slowly be heated up in reactor after oxygen, now control warming temperature difference per hour≤10 DEG C, in general, reacted after 4 hours
Temperature in the kettle is basically stable at 131 DEG C or so, and reactor temperature no longer rises, and now steps up oxygen and is depressed into
0.5MPa, temperature still no longer rises, and illustrates that reaction has terminated, and obtains product slurry.
4) by product slurry by plate-frame filtering, respectively obtain the leached mud containing elements such as Pb, Fe, Ag, As and
Leachate containing copper, the efficient selective for realizing copper is leached.
5) copper sheet that purity is 99.99% is obtained after leachate being sequentially passed through into refined filtration, cyclone electrolytic cell, pressing plate film-making, will
Leached mud obtains lead smelting gas after sequentially passing through washery slag, plate-frame filtering.The content of each essential element in the leachate and lead smelting gas
Referring to table 1.
The content of each essential element in the leachate of table 1 and lead smelting gas
| Title | Weight/volume | Moisture content % | Lead % | Copper | Acidity g/L | Major metal direct yield % |
| Lead smelting gas | 3.1t | 26.5 | 2.46 | 0.36% | Vertical yield：99.8 | |
| Leachate | 18.3m3 | 33g/L | 42 | Copper direct yield：99.3 |
Rapidly reformed due to various high-tech within this several years, the important breakthrough of titanium alloy technology particularly in Material Field is
Lead copper matte wet-milling processing provide good material reactor, make its ensure high pressure in the case of, also very big anticorrosion
Performance, is that lead copper matte oxygen pressure acidleach technology is laid a good foundation.Preferably titanium-alloy high-pressure reactor of the invention is used as reaction
Container.It should be noted that after high pressure reactor reaction terminates, terminal acidity is controlled for 30~50g/L, if too high or mistake
It is low, then next time production when in step of sizing mixing appropriate regulation sulfuric acid addition.
Embodiment 2
Referring to Fig. 1, it is the process chart that the embodiment of the present invention leaches copper from lead copper matte.As one of the invention
Embodiment, the method that copper is leached from lead copper matte is comprised the following steps.
1) 2.5 tons of lead copper mattes are weighed, is sequentially passed through that tiger's jaw is broken, after ball mill crushes, is obtained lead copper matte powder；Wherein,
By weight, lead copper matte composition is：Pb:6.34%, S:9.35%, Cu:24.24%, Fe:22.03%.
2) sulfuric acid is added to by lead copper matte powder, wherein, the concentration of sulfuric acid is 140g/L, and addition is 17.5 cubic metres,
Stir, obtain slurry；To steam is passed through in slurry, slurry is set to be warming up to 65 DEG C, while mixing time 1.2 hours；In pump
Enter 1 minute before autoclave, to 40Kg lignin is added in slurry, stir, obtain pulp material；It should be noted that
The step can be carried out in surge tank.
3) pulp material is pumped into autoclave, to steam is passed through in pulp material, the temperature of pulp material is risen to 75 DEG C,
Then stop being passed through steam, then Oxidation Leaching is carried out to oxygen is passed through in pulp material, and control partial pressure of oxygen≤0.2MPa, be passed through oxygen
Can slowly be heated up in reactor after gas, now control warming temperature difference per hour≤11 DEG C, in general, reactor after 4 hours
Interior temperature is basically stable at 135 DEG C or so, and reactor temperature no longer rises, and now steps up oxygen and is depressed into 0.4MPa,
Temperature still no longer rises, and illustrates that reaction has terminated, and obtains product slurry.
4) by product slurry by plate-frame filtering, respectively obtain the leached mud containing elements such as Pb, Fe, Ag, As and
Leachate containing Cu, the efficient selective for realizing copper is leached.
5) copper sheet is obtained after leachate being sequentially passed through into refined filtration, cyclone electrolytic cell, pressing plate film-making, leached mud is sequentially passed through and is washed
Lead smelting gas are obtained after slag, plate-frame filtering.The content of each essential element is referring to table 1 in the leachate and lead smelting gas.
The content of each essential element in the leachate of table 2 and lead smelting gas
Embodiment 3
Referring to Fig. 1, it is the process chart that the embodiment of the present invention leaches copper from lead copper matte.As one of the invention
Embodiment, the method that copper is leached from lead copper matte is comprised the following steps.
1) 3 tons of lead copper mattes are weighed, is sequentially passed through that tiger's jaw is broken, after ball mill crushes, is obtained lead copper matte powder；Wherein, press
Weight meter, lead copper matte composition is：Pb:8.17%, S:12.45%, Cu:20.95%, Fe:19.87%.
2) sulfuric acid is added to by lead copper matte powder, wherein, the concentration of sulfuric acid is 225g/L, and addition is 15 cubic metres, is stirred
Mix uniform, obtain slurry；To steam is passed through in slurry, slurry is set to be warming up to 70 DEG C, while mixing time 1.5 hours；Pumping into
3 minutes before autoclave, to 60Kg wooden sodium sulfonates are added in slurry, stir, obtain pulp material；Need explanation
It is that the step can be carried out in surge tank.
3) pulp material is pumped into autoclave, to steam is passed through in pulp material, the temperature of pulp material is risen to 85 DEG C,
Then stop being passed through steam, then Oxidation Leaching is carried out to oxygen is passed through in pulp material, and control partial pressure of oxygen≤0.1MPa, be passed through oxygen
Can slowly be heated up in reactor after gas, now control warming temperature difference per hour≤15 DEG C, in general, reactor after 4 hours
Interior temperature is basically stable at 133 DEG C or so, and reactor temperature no longer rises, and now steps up oxygen and is depressed into 0.35MPa,
Temperature still no longer rises, and illustrates that reaction has terminated, and obtains product slurry.
4) by product slurry by plate-frame filtering, respectively obtain the leached mud containing elements such as Pb, Fe, Ag, As and
Leachate containing copper, the efficient selective for realizing copper is leached.
5) copper sheet that purity is 99.99% is obtained after leachate being sequentially passed through into refined filtration, cyclone electrolytic cell, pressing plate film-making, will
Leached mud obtains lead smelting gas after sequentially passing through washery slag, plate-frame filtering.The content of each essential element in the leachate and lead smelting gas
Referring to table 1.
The content of each essential element in the leachate of table 3 and lead smelting gas
| Title | Weight/volume | Moisture content % | Lead % | Copper | Acidity g/L | Major metal direct yield % |
| Lead smelting gas | 4t | 25.8 | 8.23 | 0.33% | Vertical yield：99.7 | |
| Leachate | 15m3 | 41.6g/L | 38 | Copper direct yield：99.1 |
Embodiment 4
Referring to Fig. 1, it is the process chart that the embodiment of the present invention leaches copper from lead copper matte.As one of the invention
Embodiment, the method that copper is leached from lead copper matte is comprised the following steps.
1) 1.8 tons of lead copper mattes are weighed, is sequentially passed through that tiger's jaw is broken, after ball mill crushes, is obtained lead copper matte powder；Wherein,
By weight, lead copper matte composition is：Pb:4.72%, S:15.87%, Cu:19.44%, Fe:25.64%.
2) sulfuric acid is added to by lead copper matte powder, wherein, the concentration of sulfuric acid is 135g/L, and addition is 16 cubic metres, is stirred
Mix uniform, obtain slurry；To steam is passed through in slurry, slurry is set to be warming up to 54 DEG C, while mixing time 1.3 hours；Pumping into
5 minutes before autoclave, to 55Kg wooden calcium sulfonates are added in slurry, stir, obtain pulp material；Need explanation
It is that the step can be carried out in surge tank.
3) pulp material is pumped into autoclave, to steam is passed through in pulp material, the temperature of pulp material is risen to 73 DEG C,
Then stop being passed through steam, then Oxidation Leaching is carried out to oxygen is passed through in pulp material, and control partial pressure of oxygen≤0.18MPa, be passed through
Can slowly be heated up in reactor after oxygen, now control warming temperature difference per hour≤18 DEG C, in general, reacted after 4 hours
Temperature in the kettle is basically stable at 138 DEG C or so, and reactor temperature no longer rises, and now steps up oxygen and is depressed into
0.4MPa, temperature still no longer rises, and illustrates that reaction has terminated, and obtains product slurry.
4) by product slurry by plate-frame filtering, respectively obtain the leached mud containing elements such as Pb, Fe, Ag, As and
Leachate containing copper, the efficient selective for realizing copper is leached.
5) copper sheet that purity is 99.99% is obtained after leachate being sequentially passed through into refined filtration, cyclone electrolytic cell, pressing plate film-making, will
Leached mud obtains lead smelting gas after sequentially passing through washery slag, plate-frame filtering.The content of each essential element in the leachate and lead smelting gas
Referring to table 1.
The content of each essential element in the leachate of table 4 and lead smelting gas
| Title | Weight/volume | Moisture content % | Lead % | Copper | Acidity g/L | Major metal direct yield % |
| Lead smelting gas | 3t | 26.3 | 3.81 | 0.28% | Vertical yield：99.2 | |
| Leachate | 16.2m3 | 21.5g/L | 33 | Copper direct yield：99.5 |
Embodiment 5
Referring to Fig. 1, it is the process chart that the embodiment of the present invention leaches copper from lead copper matte.As one of the invention
Embodiment, the method that copper is leached from lead copper matte is comprised the following steps.
1) 1.5 tons of lead copper mattes are weighed, is sequentially passed through that tiger's jaw is broken, after ball mill crushes, is obtained lead copper matte powder；Wherein,
By weight, lead copper matte composition is：Pb:5.84%, S:8.12%, Cu:24.61%, Fe:15.63%.
2) sulfuric acid is added to by lead copper matte powder, wherein, the concentration of sulfuric acid is 190g/L, and addition is 10 cubic metres, is stirred
Mix uniform, obtain slurry；To steam is passed through in slurry, slurry is set to be warming up to 62 DEG C, while mixing time 1.8 hours；Pumping into
8 minutes before autoclave, to 68Kg lignosulfonic acid magnesium is added in slurry, stir, obtain pulp material；Need explanation
It is that the step can be carried out in surge tank.
3) pulp material is pumped into autoclave, to steam is passed through in pulp material, the temperature of pulp material is risen to 90 DEG C,
Then stop being passed through steam, then Oxidation Leaching is carried out to oxygen is passed through in pulp material, and control partial pressure of oxygen≤0.16MPa, be passed through
Can slowly be heated up in reactor after oxygen, now control warming temperature difference per hour≤16 DEG C, in general, reacted after 4 hours
Temperature in the kettle is basically stable at 138 DEG C or so, and reactor temperature no longer rises, and now steps up oxygen and is depressed into
0.6MPa, temperature still no longer rises, and illustrates that reaction has terminated, and obtains product slurry.
4) by product slurry by plate-frame filtering, respectively obtain the leached mud containing elements such as Pb, Fe, Ag, As and
Leachate containing copper, the efficient selective for realizing copper is leached.
5) copper sheet that purity is 99.99% is obtained after leachate being sequentially passed through into refined filtration, cyclone electrolytic cell, pressing plate film-making, will
Leached mud obtains lead smelting gas after sequentially passing through washery slag, plate-frame filtering.The content of each essential element in the leachate and lead smelting gas
Referring to table 1.
The content of each essential element in the leachate of table 5 and lead smelting gas
| Title | Weight/volume | Moisture content % | Lead % | Copper | Acidity g/L | Major metal direct yield % |
| Lead smelting gas | 2.5t | 24.8 | 4.6 | 0.36% | Vertical yield：98.7 | |
| Leachate | 10.2m3 | 36g/L | 46 | Copper direct yield：99.5 |
Embodiment 6
Referring to Fig. 1, it is the process chart that the embodiment of the present invention leaches copper from lead copper matte.As one of the invention
Embodiment, the method that copper is leached from lead copper matte is comprised the following steps.
1) 3.3 tons of lead copper mattes are weighed, is sequentially passed through that tiger's jaw is broken, after ball mill crushes, is obtained lead copper matte powder；Wherein,
By weight, lead copper matte composition is：Pb:1.68%, S:10.37%, Cu:27.54%, Fe:18.28%.
2) sulfuric acid is added to by lead copper matte powder, wherein, the concentration of sulfuric acid is 250g/L, and addition is 13.2 cubic metres,
Stir, obtain slurry；To steam is passed through in slurry, slurry is set to be warming up to 58 DEG C, while mixing time 2 hours；Pumping into
3 minutes before autoclave, to 100Kg lignin is added in slurry, stir, obtain pulp material；It should be noted that should
Step can be carried out in surge tank.
3) pulp material is pumped into autoclave, to steam is passed through in pulp material, the temperature of pulp material is risen to 74 DEG C,
Then stop being passed through steam, then Oxidation Leaching is carried out to oxygen is passed through in pulp material, and control partial pressure of oxygen≤0.2MPa, be passed through oxygen
Can slowly be heated up in reactor after gas, now control warming temperature difference per hour≤20 DEG C, in general, reactor after 4 hours
Interior temperature is basically stable at 135 DEG C or so, and reactor temperature no longer rises, and now steps up oxygen and is depressed into 0.37MPa,
Temperature still no longer rises, and illustrates that reaction has terminated, and obtains product slurry.
4) by product slurry by plate-frame filtering, respectively obtain the leached mud containing elements such as Pb, Fe, Ag, As and
Leachate containing copper, the efficient selective for realizing copper is leached.
5) copper sheet that purity is 99.99% is obtained after leachate being sequentially passed through into refined filtration, cyclone electrolytic cell, pressing plate film-making, will
Leached mud obtains lead smelting gas after sequentially passing through washery slag, plate-frame filtering.The content of each essential element in the leachate and lead smelting gas
Referring to table 1.
The content of each essential element in the leachate of table 6 and lead smelting gas
| Title | Weight/volume | Moisture content % | Lead % | Copper | Acidity g/L | Major metal direct yield % |
| Lead smelting gas | 4.2t | 25.4 | 1.75 | 0.37% | Vertical yield：98.9 | |
| Leachate | 13.2m3 | 68.5g/L | 44 | Copper direct yield：99.5 |
As can be seen here, the method that copper is leached from lead copper matte that the present invention is provided has the advantages that：
1) present invention is applicable the directly selecting property from lead copper matte and extracts copper, and product quality is up to 99.99%, without carrying again
Pure, the rate of recovery is up to 99%, and flow takes short, and lead is without charge during solving enterprise due to being sold outside lead copper matte, and gold,
Silver is without charge or valuation coefficient is very low causes the problem of a large amount of precious metals of enterprises' loss.
2) adaptability to raw material of the present invention is strong, is suitable to lead：1-45%；Copper：10-70%；Sulphur：1-30%；Silver-colored 0.01-2%；
Iron：Reclaim copper in 1-30%, and use high pressure acidleach, after the completion of Oxidation Leaching, carry out solid-liquor separation, Pb, Fe in raw material,
The elements such as Ag, As are fixed in leached mud, and Cu is then entered into leachate, it is achieved that the efficient selective leaching of copper
Go out, direct yield is high and separates thorough.
3) present invention adds additive due to lead copper matte in autoclave during Oxidation Leaching, in can solving production process
Line clogging is caused due to material conglomeration, material caking is the problems such as sink to the bottom, such that it is able to the leaching rate of copper is greatly improved,
And make production process more smooth.
4) non-environmental-pollution is produced, water system is recycled, without solid waste, slag charge can return to lead smelting in the middle of part
System reclaims the valuable metals such as lead therein, copper, gold, silver.
As can be seen here, what the present invention was provided leaches the method for copper with lead copper matte as raw material from lead copper matte, by steam plus
Hot precise control reaction condition, so as to improve the leaching rate of copper.Therefore, the method that copper is leached from lead copper matte that the present invention is provided
It is strong to adaptability to raw material, flow and simple to operate, copper leaching rate is high, small to atmosphere pollution, can improve returning for copper in lead copper matte
Utilization rate is received, so as to avoid the waste of copper resource.And can also solve that equipment investment is big, dimension using the method that the present invention is provided
The problem of shield trouble and complex operation.
Those of ordinary skill in the art should be understood：Specific embodiment of the invention is the foregoing is only, and
The limitation present invention, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc. are not used in,
Should be included within protection scope of the present invention.
Claims (10)
1. it is a kind of from lead copper matte leach copper method, it is characterised in that comprise the following steps：
1) to sulfuric acid is added in lead copper matte, slurry is obtained, slurry is heated up to steam is passed through in slurry；
2) to additive is added in the slurry, pulp material is obtained, is then stopped to being passed through steam in the pulp material, then to institute
State and be passed through oxygen in pulp material and carry out Oxidation Leaching, until the temperature of the pulp material no longer rises, obtain product slurry,
By the product slurries filtration, leached mud and the leachate containing copper are obtained.
2. the method that copper is leached from lead copper matte according to claim 1, it is characterised in that the sulfuric acid and lead copper matte
Liquid-solid ratio is 4~10:1 cubic metre/ton, the concentration of the sulfuric acid is 100~250g/L.
3. it is according to claim 1 from lead copper matte leach copper method, it is characterised in that in the step 1) in, to
Steam is passed through in slurry makes slurry be warming up to 50~70 DEG C, while stirring 1~2 hour.
4. it is according to claim 1 from lead copper matte leach copper method, it is characterised in that the additive be selected from it is wooden
Sulfonate, the addition of the additive is the 1~5% of lead copper matte dry weight.
5. it is according to claim 4 from lead copper matte leach copper method, it is characterised in that the additive be selected from it is wooden
At least one in element, wooden calcium sulfonate, wooden sodium sulfonate, lignosulfonic acid magnesium.
6. it is according to claim 1 from lead copper matte leach copper method, it is characterised in that the step 2) include：
To additive is added in the slurry, pulp material is obtained, the pulp material is pumped into autoclave；
To steam is passed through in pulp material, the temperature of pulp material is set to rise to 70~90 DEG C；
Stop to being passed through steam in the pulp material, then to being passed through oxygen in the pulp material, and partial pressure of oxygen≤0.2MPa is controlled,
Control warming temperature difference per hour≤20 DEG C, until the temperature of the pulp material no longer rises, obtains product simultaneously
Slurry；
By the product slurries filtration, leached mud and the leachate containing copper are obtained.
7. it is according to claim 6 from lead copper matte leach copper method, it is characterised in that when reaction under high pressure temperature in the kettle
When no longer rising, progressively increase oxygen and be depressed into 0.2~0.6MPa, temperature still no longer rises, and reaction terminates, and obtains product
Slurry.
8. it is according to claim 6 from lead copper matte leach copper method, it is characterised in that pumped into by the pulp material
In autoclave in first 1~10 minute, the additive is added in slurry, obtains pulp material.
9. the method that copper is leached from lead copper matte according to claim 1, it is characterised in that the acidity of the leachate is
30~50g/L.
10. it is according to claim 1 from lead copper matte leach copper method, it is characterised in that by weight, the lead ice
The content of copper is lead：1~45%；Copper：10~70%；Sulphur：1~30%；Silver 0.01~2%；Iron：1~30%.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104017991A (en) * | 2014-06-06 | 2014-09-03 | 郴州市金贵银业股份有限公司 | Process for efficiently and selectively separating copper in lead copper matte |
| CN104789783A (en) * | 2015-05-18 | 2015-07-22 | 郴州市金贵银业股份有限公司 | Process for selective efficient copper extraction and comprehensive recovery from lead copper matte |
| CN105349791A (en) * | 2015-10-28 | 2016-02-24 | 郴州市金贵银业股份有限公司 | Method for selectively extracting copper from iron-copper-matte materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104017991A (en) * | 2014-06-06 | 2014-09-03 | 郴州市金贵银业股份有限公司 | Process for efficiently and selectively separating copper in lead copper matte |
| CN104789783A (en) * | 2015-05-18 | 2015-07-22 | 郴州市金贵银业股份有限公司 | Process for selective efficient copper extraction and comprehensive recovery from lead copper matte |
| CN105349791A (en) * | 2015-10-28 | 2016-02-24 | 郴州市金贵银业股份有限公司 | Method for selectively extracting copper from iron-copper-matte materials |
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| 石油五厂工人技术学校: "《煤低温干馏》", 29 February 1960, 石油工业出版社 * |
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