CN106868299A - A kind of method of the leaching valuable metal from silicon bidery metal high - Google Patents
A kind of method of the leaching valuable metal from silicon bidery metal high Download PDFInfo
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- CN106868299A CN106868299A CN201710125096.8A CN201710125096A CN106868299A CN 106868299 A CN106868299 A CN 106868299A CN 201710125096 A CN201710125096 A CN 201710125096A CN 106868299 A CN106868299 A CN 106868299A
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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
- 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
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
-
- 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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- 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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0407—Leaching processes
- C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
- C22B23/043—Sulfurated acids or salts thereof
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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
Abstract
The invention discloses a kind of method of the leaching valuable metal from silicon bidery metal high, comprise the following steps：（1）First paragraph is leached：Normal heating leaching is carried out using sulfuric acid, the copper in alloy, cobalt, iron are obtained into slurry in the form of sulfate into leachate；（2）Magnetic separation separation circuit：By magnetic separator by step（1）In in the slurry that obtains ferromagnetism, the bidery metal of indissoluble separate and obtain ferromagnetic bidery metal slag, the slurry after magnetic separation carries out separation of solid and liquid, obtains weak magnetic cupric, the leached mud of silicon alloy and rich in ferrous one section of leachate.（3）Second segment oxidation acid leaching：By step（2）Products therefrom is separately added into differential responses groove, cobalt therein, copper is leached into solution；After the completion of ferromagnetic bidery metal slag Leach reaction, filtering, return to step after filter residue fine grinding（1）, filtrate is sent to cobalt oxide ore cleaning procedure.The characteristics of present invention has leaching rate high, with low cost and raw material applied widely.
Description
Technical field
The present invention relates to silicon bidery metal technical field high, the side of specially a kind of leaching valuable metal from silicon bidery metal high
Method.
Background technology
Silicon bidery metal high is with low-grade heterogenite（Cobalt 3%-8%, copper 2%-10%）Used also using blast furnace or electric furnace
Product in the middle of the smelting that former technology reduction melting is obtained, Silicon In Alloys content is of a relatively high, and typically in 5%-15%, alloying component is multiple
It is miscellaneous, wherein containing multicomponent alloys such as Cu, Co, Fe, Mn, Si, granulation need to be crushed and be allowed for access leaching operation, its corrosion-resistant, indissoluble
The physical property of solution brings difficulty to production, and the technique difference that cobalt concentrate alloying is used also can be to the composition of output alloy and structure
Bring greater impact.The subject matter of silicon bidery metal high treatment is that technological process long, high cost, the copper cobalt rate of recovery be low, iron is sharp
It is low with rate.
At present, the handling process of silicon bidery metal high mainly has：Desilication by roasting-sulfuric acid leaching, electrochemical solution, sulfuric acid
With hydrochloric acid nitration mixture Oxidation Leaching and the logical oxygen leaching of high pressure etc..CN102220482B is entitled, and " complex high-silicon copper-cobalt alloy alkali is located in advance
A kind of silicon copper-cobalt alloy high is disclosed in reason-normal pressure acid leaching process " patent using Desilication by roasting-sulfuric acid leaching treatment, copper cobalt
Copper cobalt in alloy can be leached efficiently, and the technique is solidified in alloy silicon by sodium carbonate roasting in the form of silica
In, follow-up leachate is solved the problems, such as because of silicon caused sad filter high, difficult leaching, and cobalt copper recovery is higher, but the technique
The shortcomings of there is big energy consumption, long flow path.《Non-ferrous metal engineering》6th phase in 2013 entitled " silicon bidery metal electrochemical dissolution high "
Paper to be reported and process silicon copper-cobalt alloy high using electrochemical solution, it is necessary to first high temperature melting casts ingot, and is further processed into
Positive plate, needs to add generation of the ammonium chloride to suppress silica, but persistently entering with electrolysis in bidery metal electrolytic process
The accumulation of silicic acid and iron ion OK, in electrolyte can suppress the dissolution of cobalt copper, the technique also exist long flow path, high energy consumption, into
The shortcomings of this is big.《Non-ferrous metal scientific and engineering》1st phase in 2015 entitled " the normal pressure leaching technical study of white alloy "
Paper is reported using sulfuric acid and hydrochloric acid mixed acid system, and adds the effect of oxidant, and cobalt, copper in silicon white alloy high can be arrived
Leaching rate higher, and produced without silica gel, but there is big compared with high, oxidant addition to equipment requirement, cost is high etc. in the technique
Shortcoming, is difficult industrialization.《Mining and metallurgy》The paper report of the 2nd phase in 2013 entitled " silicon white alloy pressure leaching process research high "
Using the logical oxygen sulfuric acid leaching PROCESS FOR TREATMENT white alloy of high pressure can effectively from alloy cobalt and copper, and most iron is stayed
In slag, but the technique is higher to equipment and operating personnel's requirement, and cost is also higher.
The content of the invention
It is an object of the invention to provide a kind of method of the leaching valuable metal from silicon bidery metal high, with leaching rate it is high,
The characteristics of with low cost and energy-conserving and environment-protective.
The present invention can be achieved through the following technical solutions：
The invention discloses a kind of method of the leaching valuable metal from silicon bidery metal high, comprise the following steps：
（1）First paragraph is leached：Silicon bidery metal powder high is put into reactive tank, normal heating leaching is carried out using sulfuric acid, will
Copper, cobalt in alloy, iron obtain slurry in the form of sulfate into leachate；
（2）Magnetic separation separation circuit：By magnetic separator by step（1）In in the slurry that obtains ferromagnetism, the bidery metal of indissoluble separate
Ferromagnetic bidery metal slag is out obtained, then the slurry after magnetic separation carries out separation of solid and liquid, obtain weak magnetic cupric, silicon alloy
Leached mud and rich in ferrous one section of leachate.
（3）Second segment oxidation acid leaching：By step（2）The ferromagnetic bidery metal slag of gained, weak magnetic leached mud are separately added into
Differential responses groove, by Controlled acidity, temperature, liquid-solid ratio, extraction time, the addition species of oxidant and addition, makes wherein
Cobalt, copper be leached into solution；After the completion of ferromagnetic bidery metal slag Leach reaction, filtering, return to step after filter residue fine grinding
（1）, filtrate is sent to cobalt oxide ore cleaning procedure；After slurry filtration after the completion of weak magnetic leached mud Leach reaction, filter residue is separately
Comprehensive utilization, filtrate is sent to cobalt oxide ore cleaning procedure.
Further, step（1）Involved silicon bidery metal powder high is product, wherein each element content in the middle of cobalt is smelted
For：Cobalt 12.0-28.0%, copper 8.0-15.0%, iron 36.0-50.0%, silicon 8.0-16.0%, alloy powder average grain diameter are being 75-
150μm。
Further, step（1）In, first paragraph is leached and carried out in normal heating stirred leaching tank, and temperature is 65 DEG C -98
℃；It is 6 that leaching process controls liquid-solid ratio:1-12:1；Initial sulfuric acid concentration is 120-200g/L；Extraction time is 1.0-2.0h；
Mixing speed is 200-600r/min.
Further, step（2）In, magnetic induction control is in 1.5-1.8T in magnetic separation separation process.
Further, step（2）In, one section of resulting leachate is sent to cobalt oxide ore and leaches operation.
Further, step（3）In, strong magnetic alloy slag oxidation is leached and carried out in normal heating stirred leaching tank, is needed
It is placed on carrying out curing 0.25-0.5h in 500-700g/L sulfuric acid solutions, then according to liquid-solid ratio 6:1-12:1 adds pure water, and adds
Oxidizer carries out Oxidation Leaching.
Further, step（3）In, strong magnetic alloy slag oxidation extraction time is 5.0-7.0h, and temperature is 75 DEG C -95
DEG C, mixing speed is 200-400r/min, and after the completion of leaching, filtering, filtrate is sent to cobalt oxide ore cleaning procedure, filter residue fine grinding
Return to step after being more than 90% to -200 mesh（1）.
Further, step（3）In, the Oxidation Leaching of weak magnetic leached mud is carried out in normal heating stirred leaching tank,
Leaching process controls temperature for 75 DEG C -95 DEG C, and liquid-solid ratio is 6:1-10:1；Initial sulfuric acid concentration is 150-220g/L；During leaching
Between be 3.0-5.0h；Mixing speed is 200-400r/min.
Further, step（3）In, the oxidant is selected from sodium hypochlorite, hydrogen peroxide, sodium chlorate, sodium nitrate, iron chloride
In one or more；Oxidant addition is the 10%-35% that alloy material leaches slag charge quality.
Further, step（3）In, after the completion of weak magnetic leached mud Leach reaction, filtering, it is net that filtrate is sent to cobalt oxide ore
Chemical industry sequence, filter residue is separately comprehensively utilized including for preparing white carbon and/or Silica hydrogel.
A kind of method of the leaching valuable metal from silicon bidery metal high of the present invention, with following beneficial effect：
Firstth, leaching efficiency is high, and normal pressure acidleach-magnetic separation-step-by-step oxidation Ore Leaching technique of the invention is realized in silicon bidery metal high
The maximization of valuable metal leaching effect, cobalt, the leaching rate of copper overcome up to more than 99% in can making silicon bidery metal high under normal pressure
The shortcoming of conventional atmospheric extract technology cobalt copper leaching effect difference, while also overcome nitration mixture leaching, oxygen leaching etc. to equipment
It is required that the deficiency of high aspect.
Secondth, it is with low cost, The inventive method achieves the iron comprehensive utilization to high content in bidery metal.The present invention is logical
Segmentation extract technology is crossed, it is ferrous iron, the treatment as regular oxidation cobalt ore to be leached by one section of iron leached in alloy first
Reducing agent, has not only saved the consumption of reducing agent in the processing procedure of regular oxidation cobalt ore, and also reduces conventional copper cobalt conjunction
The consumption of golden iron removal step oxidant.Again by two sections of Oxidation Leachings, a small amount of iron in leaching Fe alloy slag and leached mud, relative to
Only with one section of technological process of leaching, the consumption of oxidant is substantially reduced.
3rd, raw material is applied widely, and through experimental study, this technique is applied to the leaching of all kinds of bidery metals on existing market
Go out, to cobalt, copper, iron, silicon equal size change strong adaptability in bidery metal.
Specific embodiment
In order that those skilled in the art will better understand the technical solution of the present invention, with reference to embodiment and to this
Invention product is described in further detail.
Embodiment 1
The invention discloses a kind of method of the leaching valuable metal from silicon bidery metal high, comprise the following steps：
（1）First paragraph is leached：Silicon bidery metal powder high is put into reactive tank, normal heating leaching is carried out using sulfuric acid, will
Copper, cobalt in alloy, iron obtain slurry in the form of sulfate into leachate；
（2）Magnetic separation separation circuit：By magnetic separator by step（1）In in the slurry that obtains ferromagnetism, the bidery metal of indissoluble separate
Ferromagnetic bidery metal slag is out obtained, then the slurry after magnetic separation carries out separation of solid and liquid, obtain weak magnetic cupric, silicon alloy
Leached mud and rich in ferrous one section of leachate.
（3）Second segment oxidation acid leaching：By step（2）The ferromagnetic bidery metal slag of gained, weak magnetic leached mud are separately added into
Differential responses groove, by Controlled acidity, temperature, liquid-solid ratio, extraction time, the addition species of oxidant and addition, makes wherein
Cobalt, copper be leached into solution；After the completion of ferromagnetic bidery metal slag Leach reaction, filtering, return to step after filter residue fine grinding
（1）, filtrate is sent to cobalt oxide ore cleaning procedure；After slurry filtration after the completion of weak magnetic leached mud Leach reaction, filter residue is separately
Comprehensive utilization, filtrate is sent to cobalt oxide ore cleaning procedure.
In the present embodiment the step of（1）In, step（1）Involved silicon bidery metal powder high is product in the middle of cobalt is smelted,
Wherein each element content is：Cobalt 12.0-28.0%, copper 8.0-15.0%, iron 36.0-50.0%, silicon 8.0-16.0%, alloy powder are put down
Equal particle diameter is being 75-150 μm.First paragraph is leached and carried out in normal heating stirred leaching tank, and it is 98 that leaching process controls temperature
DEG C, liquid-solid ratio is 9:1；Initial sulfuric acid concentration is 120g/L；Extraction time is 2.0h；Mixing speed is 400r/min.
In the present embodiment the step of（2）In, step（2）In, magnetic induction control is in 1.5T in magnetic separation separation process.
One section of resulting leachate is sent to cobalt oxide ore and leaches operation.
In the present embodiment the step of（3）In, step（3）In, strong magnetic alloy slag oxidation is leached in normal heating stirring
Carried out in leaching tanks, need to be placed on carrying out curing 0.5h in 700g/L sulfuric acid solutions, then according to liquid-solid ratio 9:1 adds pure water, and
Addition oxidant carries out Oxidation Leaching.Strong magnetic alloy slag oxidation extraction time is 5.0h, and temperature is 95 DEG C, and mixing speed is
300r/min, after the completion of leaching, filtering, filtrate is sent to cobalt oxide ore cleaning procedure, and filter residue is returned after being finely ground to -200 mesh more than 90%
Return step（1）.The Oxidation Leaching of weak magnetic leached mud is carried out in normal heating stirred leaching tank, and leaching process controls the temperature to be
75 DEG C, liquid-solid ratio is 10:1；Initial sulfuric acid concentration is 185g/L；Extraction time is 3.0h；Mixing speed is 400r/min.It is described
Oxidant is sodium hypochlorite；Oxidant addition is that alloy material leaches the 35% of slag charge quality.Weak magnetic leached mud Leach reaction is complete
Cheng Hou, filtering, filtrate is sent to cobalt oxide ore cleaning procedure, and filter residue is separately comprehensively utilized including solidifying for preparing white carbon and silicon
Glue.
Embodiment 2
The invention discloses a kind of method of the leaching valuable metal from silicon bidery metal high, comprise the following steps：
（1）First paragraph is leached：Silicon bidery metal powder high is put into reactive tank, normal heating leaching is carried out using sulfuric acid, will
Copper, cobalt in alloy, iron obtain slurry in the form of sulfate into leachate；
（2）Magnetic separation separation circuit：By magnetic separator by step（1）In in the slurry that obtains ferromagnetism, the bidery metal of indissoluble separate
Ferromagnetic bidery metal slag is out obtained, then the slurry after magnetic separation carries out separation of solid and liquid, obtain weak magnetic cupric, silicon alloy
Leached mud and rich in ferrous one section of leachate.
（3）Second segment oxidation acid leaching：By step（2）The ferromagnetic bidery metal slag of gained, weak magnetic leached mud are separately added into
Differential responses groove, by Controlled acidity, temperature, liquid-solid ratio, extraction time, the addition species of oxidant and addition, makes wherein
Cobalt, copper be leached into solution；After the completion of ferromagnetic bidery metal slag Leach reaction, filtering, return to step after filter residue fine grinding
（1）, filtrate is sent to cobalt oxide ore cleaning procedure；After slurry filtration after the completion of weak magnetic leached mud Leach reaction, filter residue is separately
Comprehensive utilization, filtrate is sent to cobalt oxide ore cleaning procedure.
In the present embodiment the step of（1）In, step（1）Involved silicon bidery metal powder high is product in the middle of cobalt is smelted,
Wherein each element content is：Cobalt 12.0-28.0%, copper 8.0-15.0%, iron 36.0-50.0%, silicon 8.0-16.0%, alloy powder are put down
Equal particle diameter is being 75-150 μm.First paragraph is leached and carried out in normal heating stirred leaching tank, and it is 83 that leaching process controls temperature
DEG C, liquid-solid ratio is 6:1；Initial sulfuric acid concentration is 200g/L；Extraction time is 1.5h；Mixing speed is 200r/min.
In the present embodiment the step of（2）In, step（2）In, magnetic induction control is in 1.8T in magnetic separation separation process.
One section of resulting leachate is sent to cobalt oxide ore and leaches operation.
In the present embodiment the step of（3）In, step（3）In, strong magnetic alloy slag oxidation is leached in normal heating stirring
Carried out in leaching tanks, need to be placed on carrying out curing 0.375h in 600g/L sulfuric acid solutions, then according to liquid-solid ratio 6:1 adds pure water,
And add oxidant and carry out Oxidation Leaching.Strong magnetic alloy slag oxidation extraction time is 7.0h, and temperature is 85 DEG C, and mixing speed is
200r/min, after the completion of leaching, filtering, filtrate is sent to cobalt oxide ore cleaning procedure, and filter residue is returned after being finely ground to -200 mesh more than 90%
Return step（1）.The Oxidation Leaching of weak magnetic leached mud is carried out in normal heating stirred leaching tank, and leaching process controls the temperature to be
95 DEG C, liquid-solid ratio is 8:1；Initial sulfuric acid concentration is 150g/L；Extraction time is 5.0h；Mixing speed is 300r/min.It is described
Oxidant is hydrogen peroxide；Oxidant addition is that alloy material leaches the 23% of slag charge quality.Weak magnetic leached mud Leach reaction is completed
Afterwards, filter, filtrate is sent to cobalt oxide ore cleaning procedure, filter residue is separately comprehensively utilized including solidifying for preparing white carbon and/or silicon
Glue.
Embodiment 3
The invention discloses a kind of method of the leaching valuable metal from silicon bidery metal high, comprise the following steps：
（1）First paragraph is leached：Silicon bidery metal powder high is put into reactive tank, normal heating leaching is carried out using sulfuric acid, will
Copper, cobalt in alloy, iron obtain slurry in the form of sulfate into leachate；
（2）Magnetic separation separation circuit：By magnetic separator by step（1）In in the slurry that obtains ferromagnetism, the bidery metal of indissoluble separate
Ferromagnetic bidery metal slag is out obtained, then the slurry after magnetic separation carries out separation of solid and liquid, obtain weak magnetic cupric, silicon alloy
Leached mud and rich in ferrous one section of leachate.
（3）Second segment oxidation acid leaching：By step（2）The ferromagnetic bidery metal slag of gained, weak magnetic leached mud are separately added into
Differential responses groove, by Controlled acidity, temperature, liquid-solid ratio, extraction time, the addition species of oxidant and addition, makes wherein
Cobalt, copper be leached into solution；After the completion of ferromagnetic bidery metal slag Leach reaction, filtering, return to step after filter residue fine grinding
（1）, filtrate is sent to cobalt oxide ore cleaning procedure；After slurry filtration after the completion of weak magnetic leached mud Leach reaction, filter residue is separately
Comprehensive utilization, filtrate is sent to cobalt oxide ore cleaning procedure.
In the present embodiment the step of（1）In, step（1）Involved silicon bidery metal powder high is product in the middle of cobalt is smelted,
Wherein each element content is：Cobalt 12.0-28.0%, copper 8.0-15.0%, iron 36.0-50.0%, silicon 8.0-16.0%, alloy powder are put down
Equal particle diameter is being 75-150 μm.First paragraph is leached and carried out in normal heating stirred leaching tank, and leaching process temperature is 65 DEG C, control
Liquid-solid ratio processed is 12:1；Initial sulfuric acid concentration is 160g/L；Extraction time is 1.0h；Mixing speed is 600r/min.
In the present embodiment the step of（2）In, step（2）In, magnetic induction control exists in magnetic separation separation process
1.65T.One section of resulting leachate is sent to cobalt oxide ore and leaches operation.
In the present embodiment the step of（3）In, step（3）In, strong magnetic alloy slag oxidation is leached in normal heating stirring
Carried out in leaching tanks, need to be placed on carrying out curing 0.25h in 500g/L sulfuric acid solutions, then according to liquid-solid ratio 12:1 adds pure water,
And add oxidant and carry out Oxidation Leaching.Strong magnetic alloy slag oxidation extraction time is 6.0h, and temperature is 75 DEG C, and mixing speed is
400r/min, after the completion of leaching, filtering, filtrate is sent to cobalt oxide ore cleaning procedure, and filter residue is returned after being finely ground to -200 mesh more than 90%
Return step（1）.The Oxidation Leaching of weak magnetic leached mud is carried out in normal heating stirred leaching tank, and it is 85 to leach process control temperature
DEG C, liquid-solid ratio is 6:1；Initial sulfuric acid concentration is 220g/L；Extraction time is 4.0h；Mixing speed is 200r/min.The oxygen
Agent is sodium chlorate；Oxidant addition is that alloy material leaches the 10% of slag charge quality.Weak magnetic leached mud Leach reaction is completed
Afterwards, filter, filtrate is sent to cobalt oxide ore cleaning procedure, and filter residue is separately comprehensively utilized including for preparing white carbon.
Embodiment 4
The invention discloses a kind of method of the leaching valuable metal from silicon bidery metal high, comprise the following steps：
（1）First paragraph is leached：Silicon bidery metal powder high is put into reactive tank, normal heating leaching is carried out using sulfuric acid, will
Copper, cobalt in alloy, iron obtain slurry in the form of sulfate into leachate；
（2）Magnetic separation separation circuit：By magnetic separator by step（1）In in the slurry that obtains ferromagnetism, the bidery metal of indissoluble separate
Ferromagnetic bidery metal slag is out obtained, then the slurry after magnetic separation carries out separation of solid and liquid, obtain weak magnetic cupric, silicon alloy
Leached mud and rich in ferrous one section of leachate.
（3）Second segment oxidation acid leaching：By step（2）The ferromagnetic bidery metal slag of gained, weak magnetic leached mud are separately added into
Differential responses groove, by Controlled acidity, temperature, liquid-solid ratio, extraction time, the addition species of oxidant and addition, makes wherein
Cobalt, copper be leached into solution；After the completion of ferromagnetic bidery metal slag Leach reaction, filtering, return to step after filter residue fine grinding
（1）, filtrate is sent to cobalt oxide ore cleaning procedure；After slurry filtration after the completion of weak magnetic leached mud Leach reaction, filter residue is separately
Comprehensive utilization, filtrate is sent to cobalt oxide ore cleaning procedure.
In the present embodiment the step of（1）In, step（1）Involved silicon bidery metal powder high is product in the middle of cobalt is smelted,
Wherein each element content is：Cobalt 12.0-28.0%, copper 8.0-15.0%, iron 36.0-50.0%, silicon 8.0-16.0%, alloy powder are put down
Equal particle diameter is being 75-150 μm.First paragraph is leached and carried out in normal heating stirred leaching tank, and leaching process temperature is 90 DEG C, control
Liquid-solid ratio processed is 7:1；Initial sulfuric acid concentration is 180g/L；Extraction time is 1.3h；Mixing speed is 500r/min.
In the present embodiment the step of（2）In, step（2）In, magnetic induction control is in 1.6T in magnetic separation separation process.
One section of resulting leachate is sent to cobalt oxide ore and leaches operation.
In the present embodiment the step of（3）In, step（3）In, strong magnetic alloy slag oxidation is leached in normal heating stirring
Carried out in leaching tanks, need to be placed on carrying out curing 0.4h in 550g/L sulfuric acid solutions, then according to liquid-solid ratio 8:1 adds pure water, and
Addition oxidant carries out Oxidation Leaching.Strong magnetic alloy slag oxidation extraction time is 6.5h, and temperature is 90 DEG C, and mixing speed is
250r/min, after the completion of leaching, filtering, filtrate is sent to cobalt oxide ore cleaning procedure, and filter residue is returned after being finely ground to -200 mesh more than 90%
Return step（1）.The Oxidation Leaching of weak magnetic leached mud is carried out in normal heating stirred leaching tank, and leaching process controls the temperature to be
90 DEG C, liquid-solid ratio is 9:1；Initial sulfuric acid concentration is 200g/L；Extraction time is 3.5h；Mixing speed is 350r/min.It is described
Oxidant is sodium nitrate；Oxidant addition is that alloy material leaches the 30% of slag charge quality.Weak magnetic leached mud Leach reaction is completed
Afterwards, filter, filtrate is sent to cobalt oxide ore cleaning procedure, and filter residue is separately comprehensively utilized including for preparing Silica hydrogel.
Embodiment 5
The invention discloses a kind of method of the leaching valuable metal from silicon bidery metal high, comprise the following steps：
（1）First paragraph is leached：Silicon bidery metal powder high is put into reactive tank, normal heating leaching is carried out using sulfuric acid, will
Copper, cobalt in alloy, iron obtain slurry in the form of sulfate into leachate；
（2）Magnetic separation separation circuit：By magnetic separator by step（1）In in the slurry that obtains ferromagnetism, the bidery metal of indissoluble separate
Ferromagnetic bidery metal slag is out obtained, then the slurry after magnetic separation carries out separation of solid and liquid, obtain weak magnetic cupric, silicon alloy
Leached mud and rich in ferrous one section of leachate.
（3）Second segment oxidation acid leaching：By step（2）The ferromagnetic bidery metal slag of gained, weak magnetic leached mud are separately added into
Differential responses groove, by Controlled acidity, temperature, liquid-solid ratio, extraction time, the addition species of oxidant and addition, makes wherein
Cobalt, copper be leached into solution；After the completion of ferromagnetic bidery metal slag Leach reaction, filtering, return to step after filter residue fine grinding
（1）, filtrate is sent to cobalt oxide ore cleaning procedure；After slurry filtration after the completion of weak magnetic leached mud Leach reaction, filter residue is separately
Comprehensive utilization, filtrate is sent to cobalt oxide ore cleaning procedure.
In the present embodiment the step of（1）In, step（1）Involved silicon bidery metal powder high is product in the middle of cobalt is smelted,
Wherein each element content is：Cobalt 12.0-28.0%, copper 8.0-15.0%, iron 36.0-50.0%, silicon 8.0-16.0%, alloy powder are put down
Equal particle diameter is being 75-150 μm.First paragraph is leached and carried out in normal heating stirred leaching tank, and leaching process temperature is 75 DEG C, control
Liquid-solid ratio processed is 10:1；Initial sulfuric acid concentration is 140g/L；Extraction time is 1.8h；Mixing speed is 350r/min.
In the present embodiment the step of（2）In, step（2）In, magnetic induction control is in 1.7T in magnetic separation separation process.
One section of resulting leachate is sent to cobalt oxide ore and leaches operation.
In the present embodiment the step of（3）In, step（3）In, strong magnetic alloy slag oxidation is leached in normal heating stirring
Carried out in leaching tanks, need to be placed on carrying out curing 0.3h in 650g/L sulfuric acid solutions, then according to liquid-solid ratio 10:1 adds pure water, and
Addition oxidant carries out Oxidation Leaching.Strong magnetic alloy slag oxidation extraction time is 5.5h, and temperature is 90 DEG C, and mixing speed is
250r/min, after the completion of leaching, filtering, filtrate is sent to cobalt oxide ore cleaning procedure, and filter residue is returned after being finely ground to -200 mesh more than 90%
Return step（1）.The Oxidation Leaching of weak magnetic leached mud is carried out in normal heating stirred leaching tank, and leaching process temperature is 80
DEG C, it is 9 to control liquid-solid ratio:1；Initial sulfuric acid concentration is 170g/L；Extraction time is 4.5h；Mixing speed is 250r/min.Institute
Oxidant is stated for sodium hypochlorite, hydrogen peroxide, sodium chlorate, sodium nitrate and iron chloride；Oxidant addition is that alloy material leaches slag charge
The 15% of quality.After the completion of weak magnetic leached mud Leach reaction, filtering, filtrate is sent to cobalt oxide ore cleaning procedure, and filter residue is separately comprehensive
Close using including being used for preparing white carbon and/or Silica hydrogel.
The above, only presently preferred embodiments of the present invention not makees any formal limitation to the present invention；It is all
The those of ordinary skill of the industry can described in by specification and the above and swimmingly implement the present invention；But, it is all to be familiar with
Professional and technical personnel without departing from the scope of the present invention, makes using disclosed above technology contents
A little variation, modification and evolution equivalent variations, be Equivalent embodiments of the invention；Meanwhile, it is all according to reality of the invention
Variation, modification and evolution of any equivalent variations that matter technology is made to above example etc., still fall within technology of the invention
Within the protection domain of scheme.
Claims (10)
1. a kind of method of the leaching valuable metal from silicon bidery metal high, it is characterised in that comprise the following steps：
（1）First paragraph is leached：Silicon bidery metal powder high is put into reactive tank, normal heating leaching is carried out using sulfuric acid, will
Copper, cobalt in alloy, iron obtain slurry in the form of sulfate into leachate；
（2）Magnetic separation separation circuit：By magnetic separator by step（1）In in the slurry that obtains ferromagnetism, the bidery metal of indissoluble separate
Ferromagnetic bidery metal slag is out obtained, then the slurry after magnetic separation carries out separation of solid and liquid, obtain weak magnetic cupric, silicon alloy
Leached mud and rich in ferrous one section of leachate；
（3）Second segment oxidation acid leaching：By step（2）The ferromagnetic bidery metal slag of gained, weak magnetic leached mud are separately added into difference
Reactive tank, by Controlled acidity, temperature, liquid-solid ratio, extraction time, the addition species of oxidant and addition, make cobalt therein,
Copper is leached into solution；After the completion of ferromagnetic bidery metal slag Leach reaction, filtering, return to step after filter residue fine grinding（1）, filter
Liquid is sent to cobalt oxide ore cleaning procedure；After slurry filtration after the completion of weak magnetic leached mud Leach reaction, filter residue is separately comprehensive sharp
With filtrate is sent to cobalt oxide ore cleaning procedure.
2. the method for the leaching valuable metal from silicon bidery metal high according to claim 1, it is characterised in that：Step（1）
Involved silicon bidery metal powder high is product in the middle of cobalt is smelted, and wherein each element content is：Cobalt 12.0-28.0%, copper 8.0-
15.0%th, iron 36.0-50.0%, silicon 8.0-16.0%, alloy powder average grain diameter is being 75-150 μm.
3. the method for the leaching valuable metal from silicon bidery metal high according to claim 1, it is characterised in that：Step（1）
In, first paragraph is leached and carried out in normal heating stirred leaching tank, and leaching process temperature is 65 DEG C -98 DEG C；Leaching process is controlled
Liquid-solid ratio is 6:1-12:1；Initial sulfuric acid concentration is 120-200g/L；Extraction time is 1.0-2.0h；Mixing speed is 200-
600r/min。
4. the method for leaching valuable metal from silicon bidery metal high according to Claims 2 or 3, it is characterised in that：Step
（2）In, magnetic induction control is in 1.5-1.8T in magnetic separation separation process.
5. the method for the leaching valuable metal from silicon bidery metal high according to claim 4, it is characterised in that：Step（2）
In, one section of resulting leachate is sent to cobalt oxide ore and leaches operation.
6. the method for the leaching valuable metal from silicon bidery metal high according to claim 5, it is characterised in that：Step（3）
In, strong magnetic alloy slag oxidation is leached and carried out in normal heating stirred leaching tank, need to be placed on 500-700g/L sulfuric acid solutions
In carry out curing 0.25-0.5h, then according to liquid-solid ratio 6:1-12:1 plus pure water, and add oxidant and carry out Oxidation Leaching.
7. the method for the leaching valuable metal from silicon bidery metal high according to claim 6, it is characterised in that：Step（3）
In, strong magnetic alloy slag oxidation extraction time is 5.0-7.0h, and temperature is 75 DEG C -95 DEG C, and mixing speed is 200-400r/min,
After the completion of leaching, filtering, filtrate is sent to cobalt oxide ore cleaning procedure, and filter residue is finely ground to return to step after -200 mesh are more than 90%
（1）.
8. the method for the leaching valuable metal from silicon bidery metal high according to claim 6, it is characterised in that：Step（3）
In, the Oxidation Leaching of weak magnetic leached mud is carried out in normal heating stirred leaching tank, and it is 75 DEG C -95 that leaching process controls temperature
DEG C, liquid-solid ratio is 6:1-10:1；Initial sulfuric acid concentration is 150-220g/L；Extraction time is 3.0-5.0h；Mixing speed is
200-400r/min。
9. the method for the leaching valuable metal from silicon bidery metal high according to claim 8, it is characterised in that：Step（3）
In, the oxidant is selected from one or more in sodium hypochlorite, hydrogen peroxide, sodium chlorate, sodium nitrate, iron chloride；Oxidant is added
Measure the 10%-35% that slag charge quality is leached for alloy material.
10. the method for the leaching valuable metal from silicon bidery metal high according to claim 9, it is characterised in that：Step（3）
In, after the completion of weak magnetic leached mud Leach reaction, filtering, filtrate is sent to cobalt oxide ore cleaning procedure, and filter residue is separately comprehensively utilized
Including for preparing white carbon and/or Silica hydrogel.
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| CN110872107A (en) * | 2018-08-30 | 2020-03-10 | 衢州华友钴新材料有限公司 | Method for recovering iron from alloy leaching solution in cobalt-nickel industry |
| CN112760498A (en) * | 2020-12-25 | 2021-05-07 | 浙江天能新材料有限公司 | Method for preparing high-purity cobalt sulfate and recovering germanium by removing iron in sections |
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| CN101157982A (en) * | 2006-10-08 | 2008-04-09 | 中国恩菲工程技术有限公司 | Method for leaching bidery metal by sulfuric acid and inflation agitation leaching trough |
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| CN110872107A (en) * | 2018-08-30 | 2020-03-10 | 衢州华友钴新材料有限公司 | Method for recovering iron from alloy leaching solution in cobalt-nickel industry |
| CN112760498A (en) * | 2020-12-25 | 2021-05-07 | 浙江天能新材料有限公司 | Method for preparing high-purity cobalt sulfate and recovering germanium by removing iron in sections |
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