CN107964589A - A kind of electrochemistry deposit impregnating technology - Google Patents
A kind of electrochemistry deposit impregnating technology Download PDFInfo
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- CN107964589A CN107964589A CN201711070389.7A CN201711070389A CN107964589A CN 107964589 A CN107964589 A CN 107964589A CN 201711070389 A CN201711070389 A CN 201711070389A CN 107964589 A CN107964589 A CN 107964589A
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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
- C22B3/045—Leaching using electrochemical 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
- C22B59/00—Obtaining rare earth metals
-
- 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
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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 electrochemistry deposit impregnating technology, comprise the following steps：(1) the molten mineral of theobromine are crushed to 100 300 mesh；(2) water that 2 10 times of mineral volume is added in the mineral obtained toward step (1) is sized mixing；(3) electrolyte is added in the mineral slurries obtained toward step (2)；(4) anode plate and cathode plate are inserted into the mineral slurries obtained toward step (3), when then DC electrolysis 2 12 are small, 1 15V of voltage, 1 300A/m of current density2；(5) after being electrolysed, minus plate collect under acid condition can electrodeposition element, mineral slurries separation of solid and liquid obtains feed liquid.The present invention is electrolysed with salt replaces acid reaction to carry out leaching ore deposit, and reaction is gentle controllable, and salt electrolysis effectiveness is molten better than directly acid, and can greatly reduce brine waste amount, and realization recycles；The present invention is suitable for various metals mineral and processes, and realizes mineral comprehensive utilization, is particularly suitable for low-grade mineral.
Description
Technical field
The invention belongs to field of hydrometallurgy, and in particular to a kind of electrochemistry deposit impregnating technology.
Background technology
Hydrometallurgy main feature is exactly that brine waste amount is big, and wastewater treatment is difficult, mineral dilution impurity content high score from
Difficulty, impurity separation costs are high.
By taking rare-earth trade as an example, rare-earth trade brine waste mainly has two sources：Extraction saponification waste-water and carbon sink waste water,
Mainly sodium chloride and ammonium chloride, measure very big and evaporative crystallization processing cost height and without the market demand, seriously affect enterprise
The existence of industry.
The content of the invention
The goal of the invention of the present invention is：In view of the problems of the existing technology, there is provided a kind of electrochemistry deposit impregnating technology, is fitted
Processed for various metals mineral, reduce hydrometallurgy brine waste.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of electrochemistry deposit impregnating technology, comprises the following steps：
(1) the molten mineral of theobromine are crushed to 100-300 mesh；
(2) water that 2-10 times of mineral volume is added in the mineral obtained toward step (1) is sized mixing；
(3) electrolyte is added in the mineral slurries obtained toward step (2)；
(4) anode plate and cathode plate are inserted into the mineral slurries obtained toward step (3), when then DC electrolysis 2-12 is small,
Voltage 1-15V, current density 1-300A/m2；
(5) after being electrolysed, minus plate collect under acid condition can electrodeposition element, mineral slurries separation of solid and liquid expected
Liquid.
In the present invention, in the step (1), the molten mineral of theobromine can be bastnaesite, galena or lead skim etc., theobromine
Molten mineral are beneficial to reaction after crushing to carry out, and different mineral granularities requires different.
In the step (2), therefore water addition ratio example is different for the different solubility of different minerals.
In the step (3), electrolyte can be sodium chloride, ammonium chloride, ammonium sulfate or ammonium nitrate etc., according to different minerals
Process requirements add different electrolyte, and electrolyte addition is added according to mineral grade.
In the step (4), positive plate can be graphite anode plate or titanium anode plate, and minus plate can be graphite cathode
Plate, titanium negative plate or stainless steel cathode plate.
As a kind of concrete application scheme of the present invention, electrochemistry deposit impregnating technology comprises the following steps：
(1) bastnaesite is crushed to 100 mesh；
(2) water that 8 times of mineral volume is added in the mineral obtained toward step (1) is sized mixing；
(3) sodium chloride of 1.8 times of oxide weight is added in the mineral slurries obtained toward step (2)；
(4) graphite anode plate and graphite cathode plate are inserted into the mineral slurries obtained toward step (3), then DC electrolysis 12
Hour, voltage 4.2V, current density 80A/m2；
(5) after being electrolysed, minus plate collects lead sponge, and mineral slurries separation of solid and liquid obtains the low cerium feed liquid of rare earth.
As another concrete application scheme of the present invention, electrochemistry deposit impregnating technology comprises the following steps：
(1) the ripe miberal powder of bastnaesite is broken to 300 mesh；
(2) water that 2.5 times of mineral volume is added in the mineral obtained toward step (1) is sized mixing；
(3) ammonium chloride of 6 times of calcium strontium lead oxide impurity weight is added in the mineral slurries obtained toward step (2)；
(4) graphite anode plate and stainless steel cathode plate are inserted into the mineral slurries obtained toward step (3), then DC electrolysis
3 it is small when, voltage 3.5V, current density 50A/m2；
(5) after being electrolysed, minus plate collects lead sponge, and mineral slurries separation of solid and liquid obtains calcium strontium feed liquid and high-grade is dilute
Tu Kuang.
As another concrete application scheme of the present invention, electrochemistry deposit impregnating technology comprises the following steps：
(1) galena is crushed to 300 mesh；
(2) water that 6 times of mineral volume is added in the mineral obtained toward step (1) is sized mixing；
(3) ammonium chloride and 0.2 times of tri-chlorination of 1.5 times of oxide weight are added in the mineral slurries obtained toward step (2)
Iron；
(4) titanium anode plate and stainless steel cathode plate are inserted into the mineral slurries obtained toward step (3), then DC electrolysis 10
Hour, voltage 4.5V, current density 90A/m2；
(5) after being electrolysed, minus plate collects lead sponge, and mineral slurries separation of solid and liquid obtains highly acidity feed liquid.
The beneficial effects of the present invention are：
The present invention is electrolysed with salt replaces acid reaction to carry out leaching ore deposit, and reaction is gentle controllable, and salt electrolysis effectiveness is molten better than directly acid,
And brine waste amount can be greatly reduced, realization recycles；The present invention is suitable for various metals mineral and processes, and realizes ore deposit
Thing comprehensively utilizes, and is particularly suitable for low-grade mineral.
Embodiment
, below will be to the preferred embodiment of the present invention in order to make the object, technical solutions and advantages of the present invention clearer
It is described in detail.
Content is weight percentage in the following example；The experiment side of actual conditions is not specified in the following example
Method, conventionally makes choice with condition.
Embodiment 1
(1) 200 gram of 100 mesh sieving bastnaesite (REO76%, PbO0.75%)；
(2) mineral for obtaining step (1) are added in 2000 milliliters of beakers, are added 1600 milliliters of water and are sized mixing；
(3) 270 grams of sodium chloride are added in the mineral slurries obtained toward step (2)；
(4) graphite anode plate and graphite cathode plate are inserted into the mineral slurries obtained toward step (3), then DC electrolysis 12
Hour, voltage 4.2V, current density 80A/m2；
(5) after being electrolysed, minus plate collects lead sponge, and mineral slurries separation of solid and liquid obtains the low cerium feed liquid of rare earth.
The low cerium feed liquid of rare earth and cathode deposition are analyzed：
The low cerium feed liquid of rare earth：REO33.25g/L, La2O3/ REO66%, CeO2/ REO 8.2%, Pr6O11/ REO8.53%,
Nd2O3/ REO16.8%.
Cathode deposition：PbO 25%.
Wherein, since electrolytic process cathode is exposed in ore pulp, lead sponge meeting absorbed portion ore pulp causes lead content
Relatively low, technical scheme is enriched with 33 times of multiplying power by removing the lead in Rare Earth Mine and enrichment.
Embodiment 2
The ripe ore deposit of (1) 200 gram of 300 mesh sieving bastnaesite (REO74.8%, PbO0.55%, CaO1.54%,
SrO1.1%)；
(2) mineral for obtaining step (1) are added in 2000 milliliters of beakers, are added 500 milliliters of water and are sized mixing；
(3) 36 grams of ammonium chlorides are added in the mineral slurries obtained toward step (2)；
(4) titanium anode plate and stainless steel cathode plate are inserted into the mineral slurries obtained toward step (3), then DC electrolysis 3
Hour, voltage 3.5V, current density 50A/m2；
(5) after being electrolysed, minus plate collects lead sponge, and mineral slurries separation of solid and liquid obtains calcium strontium feed liquid and high-grade is dilute
Tu Kuang.
Calcium strontium feed liquid, high-grade Rare Earth Mine and cathode deposition are analyzed：
Calcium strontium feed liquid：REO 0.15g/L, CaO2.89g/L, SrO 3.7g/L.
High-grade Rare Earth Mine：REO86%, PbO0.04%, CaO 0.77%, SrO 0.23%.
Cathode deposition：PbO 13%.
Embodiment 3
(1) 200 gram of 300 mesh sieving galena (PbO34.5%)；
(2) mineral for obtaining step (1) are added in 2000 milliliters of beakers, are added 1200 milliliters of water and are sized mixing；
(3) 100 grams of ammonium chlorides and 13 grams of ferric trichlorides are added in the mineral slurries obtained toward step (2)；
(4) titanium anode plate and stainless steel cathode plate are inserted into the mineral slurries obtained toward step (3), then DC electrolysis 10
Hour, voltage 4.5V, current density 90A/m2；
(5) after being electrolysed, minus plate collects lead sponge, and mineral slurries separation of solid and liquid obtains highly acidity feed liquid.
Highly acidity feed liquid and cathode deposition are analyzed：
Highly acidity feed liquid：H2SO430g/L, NH4Cl 60g/L, PbO 0.005g/L.
Wherein, sulfuric acid is that galena oxidation produces.
Cathode deposition：PbO 88%.
Wherein, since galena lead grade height causes to separate out lead sponge grade height.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although passing through ginseng
According to the preferred embodiment of the present invention, invention has been described, it should be appreciated by those of ordinary skill in the art that can
Various changes are made to it in the form and details, the present invention that is limited without departing from the appended claims
Spirit and scope.
Claims (7)
- A kind of 1. electrochemistry deposit impregnating technology, it is characterised in that：Comprise the following steps：(1) the molten mineral of theobromine are crushed to 100-300 mesh；(2) water that 2-10 times of mineral volume is added in the mineral obtained toward step (1) is sized mixing；(3) electrolyte is added in the mineral slurries obtained toward step (2)；(4) anode plate and cathode plate are inserted into the mineral slurries obtained toward step (3), when then DC electrolysis 2-12 is small, voltage 1-15V, current density 1-300A/m2；(5) after being electrolysed, minus plate collect under acid condition can electrodeposition element, mineral slurries separation of solid and liquid obtains feed liquid.
- 2. electrochemistry deposit impregnating technology according to claim 1, it is characterised in that：In the step (1), the molten mineral of theobromine For bastnaesite, galena or lead skim.
- 3. electrochemistry deposit impregnating technology according to claim 1, it is characterised in that：In the step (3), electrolyte is chlorination Sodium, ammonium chloride, ammonium sulfate or ammonium nitrate.
- 4. electrochemistry deposit impregnating technology according to claim 1, it is characterised in that：In the step (4), positive plate is graphite Positive plate or titanium anode plate, minus plate are graphite cathode plate, titanium negative plate or stainless steel cathode plate.
- 5. electrochemistry deposit impregnating technology according to claim 1, it is characterised in that：Comprise the following steps：(1) bastnaesite is crushed to 100 mesh；(2) water that 8 times of mineral volume is added in the mineral obtained toward step (1) is sized mixing；(3) sodium chloride of 1.8 times of oxide weight is added in the mineral slurries obtained toward step (2)；(4) graphite anode plate and graphite cathode plate are inserted into the mineral slurries obtained toward step (3), then DC electrolysis 12 are small When, voltage 4.2V, current density 80A/m2；(5) after being electrolysed, minus plate collects lead sponge, and mineral slurries separation of solid and liquid obtains the low cerium feed liquid of rare earth.
- 6. electrochemistry deposit impregnating technology according to claim 1, it is characterised in that：Comprise the following steps：(1) the ripe miberal powder of bastnaesite is broken to 300 mesh；(2) water that 2.5 times of mineral volume is added in the mineral obtained toward step (1) is sized mixing；(3) ammonium chloride of 6 times of calcium strontium lead oxide impurity weight is added in the mineral slurries obtained toward step (2)；(4) graphite anode plate and stainless steel cathode plate are inserted into the mineral slurries obtained toward step (3), then DC electrolysis 3 are small When, voltage 3.5V, current density 50A/m2；(5) after being electrolysed, minus plate collects lead sponge, and mineral slurries separation of solid and liquid obtains calcium strontium feed liquid and high-grade rare earth Ore deposit.
- 7. electrochemistry deposit impregnating technology according to claim 1, it is characterised in that：Comprise the following steps：(1) galena is crushed to 300 mesh；(2) water that 6 times of mineral volume is added in the mineral obtained toward step (1) is sized mixing；(3) ammonium chloride and 0.2 times of ferric trichloride of 1.5 times of oxide weight are added in the mineral slurries obtained toward step (2)；(4) titanium anode plate and stainless steel cathode plate are inserted into the mineral slurries obtained toward step (3), then DC electrolysis 10 are small When, voltage 4.5V, current density 90A/m2；(5) after being electrolysed, minus plate collects lead sponge, and mineral slurries separation of solid and liquid obtains highly acidity feed liquid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711070389.7A CN107964589A (en) | 2017-11-03 | 2017-11-03 | A kind of electrochemistry deposit impregnating technology |
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| CN201711070389.7A CN107964589A (en) | 2017-11-03 | 2017-11-03 | A kind of electrochemistry deposit impregnating technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777394A (en) * | 2019-10-24 | 2020-02-11 | 北京矿冶科技集团有限公司 | Method for electrolyzing and recovering lead from lead-containing slag by using chlorination diaphragm |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087971A (en) * | 2014-07-11 | 2014-10-08 | 北京矿冶研究总院 | Method for treating lead matte |
| CN105755279A (en) * | 2016-05-19 | 2016-07-13 | 东北大学 | Method for microwave heating, chlorinating and decomposing Baotou mixed rare earth concentrate |
| CN106048654A (en) * | 2016-07-19 | 2016-10-26 | 云南祥云飞龙再生科技股份有限公司 | Technology for preparing lead through ammonia electroreduction in ammonium chloride |
-
2017
- 2017-11-03 CN CN201711070389.7A patent/CN107964589A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087971A (en) * | 2014-07-11 | 2014-10-08 | 北京矿冶研究总院 | Method for treating lead matte |
| CN105755279A (en) * | 2016-05-19 | 2016-07-13 | 东北大学 | Method for microwave heating, chlorinating and decomposing Baotou mixed rare earth concentrate |
| CN106048654A (en) * | 2016-07-19 | 2016-10-26 | 云南祥云飞龙再生科技股份有限公司 | Technology for preparing lead through ammonia electroreduction in ammonium chloride |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777394A (en) * | 2019-10-24 | 2020-02-11 | 北京矿冶科技集团有限公司 | Method for electrolyzing and recovering lead from lead-containing slag by using chlorination diaphragm |
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Application publication date: 20180427 |