CN109385646A - The circulation technology and its circulator of electric lean solution in a kind of cobalt chloride electrolytic deposition process - Google Patents
The circulation technology and its circulator of electric lean solution in a kind of cobalt chloride electrolytic deposition process Download PDFInfo
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- CN109385646A CN109385646A CN201710682209.4A CN201710682209A CN109385646A CN 109385646 A CN109385646 A CN 109385646A CN 201710682209 A CN201710682209 A CN 201710682209A CN 109385646 A CN109385646 A CN 109385646A
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- cobalt chloride
- lean solution
- slot
- electric
- dechlorination
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- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 title claims abstract description 106
- 238000005137 deposition process Methods 0.000 title claims abstract description 25
- 238000005516 engineering process Methods 0.000 title claims abstract description 12
- 238000006298 dechlorination reaction Methods 0.000 claims abstract description 53
- 238000000605 extraction Methods 0.000 claims abstract description 34
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 26
- 239000010941 cobalt Substances 0.000 claims abstract description 26
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 26
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000004070 electrodeposition Methods 0.000 claims abstract description 17
- 239000002253 acid Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000000126 substance Substances 0.000 claims abstract description 15
- 239000013078 crystal Substances 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 53
- 239000003792 electrolyte Substances 0.000 claims description 35
- 230000005611 electricity Effects 0.000 claims description 17
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 15
- 239000000460 chlorine Substances 0.000 claims description 15
- 229910052801 chlorine Inorganic materials 0.000 claims description 15
- -1 mono- 2- ethylhexyl Chemical group 0.000 claims description 12
- LJKDOMVGKKPJBH-UHFFFAOYSA-N 2-ethylhexyl dihydrogen phosphate Chemical compound CCCCC(CC)COP(O)(O)=O LJKDOMVGKKPJBH-UHFFFAOYSA-N 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 239000003350 kerosene Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000007127 saponification reaction Methods 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000005660 chlorination reaction Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000003247 decreasing effect Effects 0.000 abstract description 3
- 235000013495 cobalt Nutrition 0.000 description 20
- 235000019441 ethanol Nutrition 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- 125000001309 chloro group Chemical group Cl* 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- HCIQUGMKXQZZMG-UHFFFAOYSA-N ethyl hexyl hydrogen phosphate Chemical compound CCCCCCOP(O)(=O)OCC HCIQUGMKXQZZMG-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/06—Operating or servicing
-
- 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
- C25C1/06—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese
- C25C1/08—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese of nickel or cobalt
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The invention discloses a kind of circulation technologies of lean solution electric in cobalt chloride electrolytic deposition process, the technique are as follows: to progress physics dechlorination and chemical dechlorination after the electric lean solution stirring heating generated in cobalt chloride electrolytic deposition process, concentrated hydrochloric acid is added into the electric lean solution after dechlorination and prepares back extraction acid, back extraction acid is washed through overload organic extractant, is stripped, cobalt chloride solution after back extraction is made, cobalt chloride solution and cobalt chloride crystal after back extraction are sent after dissolving tank is added to closed cobalt chloride Winning cell preparation electrodeposited cobalt.The invention also discloses a kind of circulator of lean solution electric in cobalt chloride electrolytic deposition process.The present invention is by carrying out dechlorination, acid adding to electric lean solution, new strip liquor is made, new strip liquor is washed through overload organic extractant, is stripped, cobalt chloride solution is made, cobalt chloride solution and cobalt chloride crystal enter electrodeposition mechanism production electrodeposited cobalt, reduce the water into electrodeposition mechanism in this way, while decreasing the evaporated water for saving whole device balance, reduces cost.
Description
Technical field
The invention belongs to electrodeposited cobalt technical fields, and in particular to the circulation technology of electric lean solution in a kind of cobalt chloride electrolytic deposition process
And its device.
Background technique
In cobalt chloride electrolytic deposition process, cathode produces electrodeposited cobalt, and anode releases chlorine, and most of chlorine is inhaled by absorption plant
After receipts, it is again introduced into electric effusion circulation after being supplemented cobalt metal, how to supplement metal ion is produced in different electrodeposited cobalts
Producer uses only two ways, first is that the cobalt chloride solution of high concentration is added, second is that adding cobalt chloride crystal.But two kinds are added
There is bigger defect, the first bring is that have a large amount of water in cobalt chloride solution, for the volumetric balance for guaranteeing system,
A large amount of water is evaporated, cobalt chloride crystal in second, water is relatively fewer, but evaporates cobalt chloride solution to obtain cobalt chloride crystal the same
It needs to evaporate a large amount of water, while bringing the cost factors such as packaging.
Summary of the invention
In view of this, being solved existing the main purpose of the present invention is to provide a kind of circulation technology of electrodeposited cobalt electricity lean solution
There is processing step in technology cumbersome, problem complicated for operation, at high cost；The present invention also provides a kind of following for electrodeposited cobalt electricity lean solution
The device of ring technique.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows: electricity is poor in a kind of cobalt chloride electrolytic deposition process
The circulation technology of liquid, the technique are as follows: to generated in cobalt chloride electrolytic deposition process electric lean solution stirring heating after carry out physics dechlorination and
Concentrated hydrochloric acid is added into the electric lean solution after dechlorination and prepares back extraction acid for chemical dechlorination, and back extraction acid is carried out through overload organic extractant
Washing, back extraction, the cobalt chloride solution after back extraction is made, the cobalt chloride solution after back extraction are sent after dissolving tank is added with cobalt chloride crystal
Electrodeposited cobalt is prepared to closed cobalt chloride Winning cell.
Preferably, the load organic extractant is that the mono- 2- ethylhexyl of 2- ethylhexyl phosphoric acid loads organic extractant,
It is specific the preparation method comprises the following steps: being then added stirring evenly in the mono- 2- ethylhexyl addition sulfonated kerosene of 2- ethylhexyl phosphoric acid
NaOH solution stirring saponification is made the mono- 2- ethylhexyl of 2- ethylhexyl phosphoric acid and loads organic extractant.
Preferably, the chemical dechlorination method particularly includes: using alcohol solution reduction treatment electrodeposited cobalt electricity lean solution remaining
Chlorine.
Preferably, dechlorination temperature is 80~90 DEG C when the physics dechlorination.
Another technical solution of the invention is achieved in that a kind of circulation dress of electric lean solution in cobalt chloride electrolytic deposition process
Set comprising pass sequentially through the extraction mechanism of pipeline connection, oil removing mechanism, dissolving tank, electrodeposition mechanism, dechlorination slot, make-up tank and
Forming circuit.
Preferably, the electrodeposition mechanism includes electrolyte circulating slot, closed cobalt chloride Winning cell, electric lean solution holding tank, institute
Electrolyte circulating slot, closed cobalt chloride Winning cell, electric lean solution holding tank is stated to be sequentially connected logical by pipeline and be formed into a loop, it is described
Electrolyte circulating slot is connected by pipeline with dissolving tank, and the electricity lean solution holding tank is connected by pipeline with dechlorination slot.
Preferably, the electrolyte circulating slot, closed cobalt chloride Winning cell, electric lean solution holding tank are disposed as two and divide
It Bao Kuo not the first electrolyte circulating slot, the second electrolyte circulating slot, the first closed cobalt chloride Winning cell, the second closed cobalt chloride electricity
Product slot, the first electric lean solution holding tank, the second electric lean solution holding tank, the first electrolyte circulating slot by pipeline respectively with dissolution
Slot, the second electrolyte circulating slot are connected, and the second electrolyte circulating slot is electric with the first closed cobalt chloride respectively by pipeline
Product slot, the second closed cobalt chloride Winning cell are connected；The exhaust outlet of the first closed cobalt chloride Winning cell and second closed
The exhaust outlet of cobalt chloride Winning cell is connected by pipeline with the first electric lean solution holding tank, the first closed cobalt chloride Winning cell
Leakage fluid dram and the leakage fluid dram of the second closed cobalt chloride Winning cell be connected by pipeline with the second electric lean solution holding tank；It is described
First electric lean solution holding tank is connected with the first electrolyte circulating slot, the second electrolyte circulating slot respectively by pipeline, and described the
Two electric lean solution holding tanks are connected by pipeline with dechlorination slot.
It preferably, further include that lye absorbs slot, the lye absorbs slot and is set as two and is interconnected by pipeline,
The exhaust outlet of the exhaust outlet of described first electric lean solution holding tank, the exhaust outlet of the second electric lean solution holding tank and dechlorination slot passes through pipe
Road is connected with the air inlet that one of lye absorbs slot, and one of lye absorbs the exhaust outlet and another alkali of slot
The air inlet that liquid absorbs slot is connected.
Preferably, the air inlet that the lye absorbs on slot groove body is connected by pipeline with inlet and is arranged on pipeline
There are circulating pump and control valve.
It preferably, further include dashpot, the dashpot is set to the first electric lean solution holding tank, the second electric lean solution storage
Slot is absorbed with lye on the pipeline that slot is connected.
Preferably, the second electrolyte circulating slot and the first closed cobalt chloride Winning cell, the second closed cobalt chloride electrodeposition
Circulating pump and control valve are provided on the pipeline that slot is connected, the described second electric lean solution holding tank, dechlorination slot, make-up tank are successively
Circulating pump and control valve are provided on the pipeline being connected.
Compared with prior art, the present invention is by carrying out physics dechlorination and chemical dechlorination to electric lean solution, and to after dechlorination
Electric lean solution is added concentrated hydrochloric acid and is configured to new strip liquor, and new strip liquor is washed through overload organic extractant, is stripped, system
Cobalt chloride solution after must being stripped, cobalt chloride solution and cobalt chloride crystal after back extraction enter electrodeposition mechanism production electrodeposited cobalt, this
Sample reduces the water into electrodeposition mechanism, while decreasing the evaporated water for saving whole device balance, reduces cost；This
Invention device structure is simple, easy to operate, realizes circulation, energy conservation, the green effect being integrated, be worth promoting use.
Detailed description of the invention
Fig. 1 is the process signal of the circulation technology of electric lean solution in a kind of cobalt chloride electrolytic deposition process provided in an embodiment of the present invention
Figure；
Fig. 2 is the circulator structural representation of electric lean solution in a kind of cobalt chloride electrolytic deposition process provided in an embodiment of the present invention
Figure.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Electric lean solution (wherein, cobalt: 50-60g/L, Cu:0.0005-g/ in a kind of cobalt chloride electrolytic deposition process provided by the invention
L, Fe:0.001g/L, chlorine residue: 0.005-0.1g/L, Zn:0.0005g/L, Pb:0.0005g/L, pH=0.5-2) circulation industrial
Skill, as shown in Figure 1, the technique are as follows: 80~90 DEG C of progress objects are warming up to the electric lean solution stirring generated in cobalt chloride electrolytic deposition process
Dechlorination is managed, then carries out chemical dechlorination again, concentrated hydrochloric acid is added into the electric lean solution after dechlorination and prepares back extraction acid, back extraction acid passes through 2-
The mono- 2- ethylhexyl load organic extractant (P507 loads organic extractant) of ethylhexyl phosphoric acid is washed, is stripped, and is made
Cobalt chloride solution after back extraction, cobalt chloride solution and cobalt chloride crystal after back extraction are sent after dissolving tank is added to closed cobalt chloride electricity
Product slot prepares electrodeposited cobalt.
Further, the mono- 2- ethylhexyl load organic extractant of 2- ethylhexyl phosphoric acid is specific the preparation method comprises the following steps: will
The mono- 2- ethylhexyl of 2- ethylhexyl phosphoric acid, which is added in sulfonated kerosene, to stir evenly, and sodium hydroxide solution is then added and stirs soap
Change, the mono- 2- ethylhexyl of 2- ethylhexyl phosphoric acid is made and loads organic extractant.
Further, chemical dechlorination method particularly includes: using alcohol solution reduction treatment electrodeposited cobalt electricity lean solution remaining
Chlorine；Wherein, alcohol solution is chosen as ethyl alcohol, propyl alcohol, ethylene glycol etc.
The circulator of electric lean solution in a kind of cobalt chloride electrolytic deposition process provided by the invention, as shown in Figure 2 comprising successively
By the extraction mechanism 1 of pipeline connection, oil removing mechanism 2, dissolving tank 3, electrodeposition mechanism 4, dechlorination slot 5, make-up tank 6 and formed back
Road.
Further, electrodeposition mechanism 4 includes electrolyte circulating slot 41, closed cobalt chloride Winning cell 42, electric lean solution holding tank
43, electrolyte circulating slot 41, closed cobalt chloride Winning cell 42, electric lean solution holding tank 43 are sequentially connected logical and are formed back by pipeline
Road, the electrolyte circulating slot 41 are connected by pipeline with dissolving tank 3, and the electricity lean solution holding tank 43 passes through pipeline and dechlorination
Slot 5 is connected.
Further, electrolyte circulating slot 41, closed cobalt chloride Winning cell 42, electric lean solution holding tank 43 are disposed as two
And respectively include the first electrolyte circulating slot 411, the second electrolyte circulating slot 412, the first closed cobalt chloride Winning cell 421,
The two electric lean solution holding tanks 432 of closed the 422, first electric lean solution holding tank 431, second of cobalt chloride Winning cell, the first electrolyte circulation
Slot 411 is connected with dissolving tank 3, the second electrolyte circulating slot 412 respectively by pipeline, the second electrolyte circulating slot 412
It is connected respectively with the first closed cobalt chloride Winning cell 421, the second closed cobalt chloride Winning cell 422 by pipeline；First is closed
The exhaust outlet of the exhaust outlet of cobalt chloride Winning cell 421 and the second closed cobalt chloride Winning cell 422 is poor by pipeline and the first electricity
Liquid holding tank 431 is connected, the leakage fluid dram and the second closed cobalt chloride Winning cell of the first closed cobalt chloride Winning cell 421
422 leakage fluid dram is connected by pipeline with the second electric lean solution holding tank 432；Described first electric lean solution holding tank 431 passes through pipe
Road is connected with the first electrolyte circulating slot 411, the second electrolyte circulating slot 412 respectively, and the second electric lean solution holding tank 432 passes through
Pipeline is connected with dechlorination slot 5.
It further, further include that lye absorbs slot 7, the lye absorbs slot 7 and is set as two and mutual by pipeline
Connection, the exhaust outlet of the first electric lean solution holding tank 431, the exhaust outlet of the second electric lean solution holding tank 432 and dechlorination slot 5
Exhaust outlet is connected by pipeline with the air inlet that one of lye absorbs slot 7, and one of lye absorbs the row of slot 7
Port is connected with the air inlet that another lye absorbs slot 7；The chlorine produced during design electrodeposition cobalt chloride in this way is in electricity
Lean solution dechlorination part and electrolysis section have effective recycling or absorb, and avoid discharging, pollute environment, it is ensured that operator's peace
Entirely；
Further, the air inlet that the lye absorbs on 7 groove body of slot is connected and on pipeline by pipeline with inlet
It is provided with circulating pump and control valve.
It further, further include dashpot 8, dashpot 8 is set to the first electric lean solution of electric lean solution holding tank 431, second
Holding tank 432 is absorbed with lye on the pipeline that slot 7 is connected.
Further, the second electrolyte circulating slot 412 and the first closed cobalt chloride Winning cell 421, the second closed cobalt chloride
Flow pump and control valve are provided on the pipeline that Winning cell 422 is connected, the second electric lean solution holding tank 432, is matched at dechlorination slot 5
Slot 6 processed, which is sequentially connected on the pipeline connect, is provided with flow pump and control valve.
Further, it is absorbed with lye on the pipeline that 7 inlet of slot is connected and absorbs 7 liquid outlet of slot with lye and be connected
Flow pump and control valve are provided on the pipeline connect.
Compared with prior art, the present invention is by carrying out physics dechlorination and chemical dechlorination to electric lean solution, and to after dechlorination
Electric lean solution is added concentrated hydrochloric acid and is configured to new strip liquor, and new strip liquor is washed through overload organic extractant, is stripped, system
Cobalt chloride solution after must being stripped, cobalt chloride solution and cobalt chloride crystal after back extraction enter electrodeposition mechanism production electrodeposited cobalt, this
Sample reduces the water into electrodeposition mechanism, while decreasing the evaporated water for saving whole device balance, reduces cost；This
Invention device structure is simple, easy to operate, realizes circulation, energy conservation, the green effect being integrated, be worth promoting use.
Embodiment 1
1) to generated in cobalt chloride electrolytic deposition process electric lean solution (wherein, cobalt: 50g/L, Cu:0.0005g/L, Fe:
0.001g/L, chlorine residue: 0.005g/L, Zn:0.0005g/L, Pb:0.0005g/L, pH=0.5) be stirred be warming up to 80 DEG C into
Then row physics dechlorination carries out chemical dechlorination using alcohols restoring method again and removes chlorine remaining in electric lean solution；2) to dechlorination
Concentrated hydrochloric acid is added in electric lean solution afterwards, back extraction acid is made；3) back extraction acid is washed through overload organic extractant, is stripped, and is made
Cobalt chloride solution after must being stripped, cobalt chloride solution and cobalt chloride crystal after back extraction are sent after dissolving tank is added to closed cobalt chloride
Winning cell prepares electrodeposited cobalt；By detecting, Han Liang≤0.001g/L of residual chlorine after chemical dechlorination.
Embodiment 2
1) to the electric lean solution (cobalt: 55g/L, Cu:0.0005g/L, Fe:0.001g/L, remaining generated in cobalt chloride electrolytic deposition process
Chlorine: 0.007g/L, Zn:0.0005g/L, Pb:0.0005g/L, pH=1.2) it is stirred and is warming up to 85 DEG C of progress physics dechlorinations,
Then chemical dechlorination is carried out using alcohols restoring method again and removes chlorine remaining in electric lean solution；2) into the electric lean solution after dechlorination
Concentrated hydrochloric acid is added, back extraction acid is made；3) back extraction acid is washed through overload organic extractant, is stripped, the chlorine after back extraction is made
Change cobalt liquor, the cobalt chloride solution and cobalt chloride crystal after back extraction are sent after dissolving tank is added to closed cobalt chloride Winning cell preparation electricity
Product cobalt；By detecting, Han Liang≤0.001g/L of residual chlorine after chemical dechlorination.
Embodiment 3
1) to the electric lean solution (cobalt: 50-60g/L, Cu:0.0005g/L, Fe:0.001g/ generated in cobalt chloride electrolytic deposition process
L, chlorine residue: 0.005-0.1g/L, Zn:0.0005g/L, Pb:0.0005g/L, pH=2) it is stirred and is warming up to 90 DEG C of progress objects
Dechlorination is managed, chemical dechlorination is then carried out using alcohols restoring method again and removes chlorine remaining in electric lean solution；2) to after dechlorination
Concentrated hydrochloric acid is added in electric lean solution, back extraction acid is made；3) back extraction acid is washed through overload organic extractant, is stripped, and is made anti-
Cobalt chloride solution after extraction, cobalt chloride solution and cobalt chloride crystal after back extraction are sent after dissolving tank is added to closed cobalt chloride electrodeposition
Slot prepares electrodeposited cobalt；By detecting, Han Liang≤0.001g/L of residual chlorine after chemical dechlorination.
Compared with the existing technology, the present invention is combined using the wet process of electric lean solution and production cobalt chloride solution, is solved
It remains in influence of the chlorine in electric lean solution to production environment, while also greatly reducing the cost of production process；
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (10)
1. the circulation technology of electric lean solution in a kind of cobalt chloride electrolytic deposition process, which is characterized in that the technique are as follows: to cobalt chloride electrodeposition mistake
Physics dechlorination and chemical dechlorination are carried out after the electric lean solution stirring heating generated in journey, concentrated hydrochloric acid is added into the electric lean solution after dechlorination
Back extraction acid is prepared, back extraction acid is washed through overload organic extractant, is stripped, the cobalt chloride solution after back extraction is made, back extraction
Cobalt chloride solution and cobalt chloride crystal afterwards is sent after dissolving tank is added to closed cobalt chloride Winning cell preparation electrodeposited cobalt.
2. a kind of circulation technology of electrodeposited cobalt electricity lean solution according to claim 1, which is characterized in that the organic extraction of load
Taking agent is that the mono- 2- ethylhexyl of 2- ethylhexyl phosphoric acid loads organic extractant, specifically the preparation method comprises the following steps: by 2- ethylhexyl
The mono- 2- ethylhexyl of phosphoric acid, which is added in sulfonated kerosene, to stir evenly, and NaOH solution stirring saponification is then added, 2- ethyl hexyl is made
The mono- 2- ethylhexyl of base phosphoric acid loads organic extractant.
3. a kind of circulation technology of electrodeposited cobalt electricity lean solution according to claim 2, which is characterized in that the chemical dechlorination
Method particularly includes: using the chlorine of alcohol solution reduction treatment electrodeposited cobalt electricity lean solution remaining.
4. a kind of cobalt chloride electrodeposition process according to claim 3, which is characterized in that dechlorination temperature when the physics dechlorination
It is 80~90 DEG C.
5. the circulator of electric lean solution in a kind of cobalt chloride electrolytic deposition process, which is characterized in that it includes passing sequentially through pipeline connection
Extraction mechanism, oil removing mechanism, dissolving tank, electrodeposition mechanism, dechlorination slot, make-up tank and forming circuit.
6. the circulator of electric lean solution in a kind of cobalt chloride electrolytic deposition process according to claim 5, which is characterized in that described
Electrodeposition mechanism includes electrolyte circulating slot, closed cobalt chloride Winning cell, electric lean solution holding tank, the electrolyte circulating slot, closed
Cobalt chloride Winning cell, electric lean solution holding tank are sequentially connected logical and are formed into a loop by pipeline, and the electrolyte circulating slot passes through pipe
Road is connected with dissolving tank, and the electricity lean solution holding tank is connected by pipeline with dechlorination slot.
7. the circulator of electric lean solution in a kind of cobalt chloride electrolytic deposition process according to claim 6, which is characterized in that described
Electrolyte circulating slot, closed cobalt chloride Winning cell, electric lean solution holding tank are disposed as two and respectively include the first electrolyte following
Annular groove, the second electrolyte circulating slot, the first closed cobalt chloride Winning cell, the second closed cobalt chloride Winning cell, the first electric lean solution are deposited
Storage tank, the second electric lean solution holding tank, the first electrolyte circulating slot are recycled with dissolving tank, the second electrolyte respectively by pipeline
Slot is connected, the second electrolyte circulating slot by pipeline respectively with the first closed cobalt chloride Winning cell, the second closed chlorination
Cobalt Winning cell is connected；The exhaust of the exhaust outlet and the second closed cobalt chloride Winning cell of the first closed cobalt chloride Winning cell
Mouthful it is connected by pipeline with the first electricity lean solution holding tank, the leakage fluid dram of the first closed cobalt chloride Winning cell and second close
The leakage fluid dram for closing cobalt chloride Winning cell is connected by pipeline with the second electric lean solution holding tank；Described first electric lean solution holding tank is logical
Piping is connected with the first electrolyte circulating slot, the second electrolyte circulating slot respectively, and the described second electric lean solution holding tank passes through
Pipeline is connected with dechlorination slot.
8. the circulator of electric lean solution in a kind of cobalt chloride electrolytic deposition process according to claim 7, which is characterized in that it is also
Slot is absorbed including lye, the lye absorbs slot and is set as two and interconnects by pipeline, the described first electric lean solution storage
The exhaust outlet of the exhaust outlet of slot, the exhaust outlet of the second electric lean solution holding tank and dechlorination slot is inhaled by pipeline and one of lye
The air inlet for receiving slot is connected, and the exhaust outlet that one of lye absorbs slot absorbs the air inlet phase of slot with another lye
Connection.
9. the circulator of electric lean solution in a kind of cobalt chloride electrolytic deposition process according to claim 8, which is characterized in that described
The air inlet that lye absorbs on slot groove body is connected by pipeline with inlet and is provided with circulating pump and control valve on pipeline.
10. according to claim 1 described in -9 any one in a kind of cobalt chloride electrolytic deposition process electric lean solution circulator, it is special
Sign is, further includes dashpot, and the dashpot is set to the first electric lean solution holding tank, the second electric lean solution holding tank and lye
It absorbs on the pipeline that slot is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710682209.4A CN109385646A (en) | 2017-08-10 | 2017-08-10 | The circulation technology and its circulator of electric lean solution in a kind of cobalt chloride electrolytic deposition process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710682209.4A CN109385646A (en) | 2017-08-10 | 2017-08-10 | The circulation technology and its circulator of electric lean solution in a kind of cobalt chloride electrolytic deposition process |
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| Publication Number | Publication Date |
|---|---|
| CN109385646A true CN109385646A (en) | 2019-02-26 |
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ID=65415018
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710682209.4A Pending CN109385646A (en) | 2017-08-10 | 2017-08-10 | The circulation technology and its circulator of electric lean solution in a kind of cobalt chloride electrolytic deposition process |
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| Country | Link |
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| CN (1) | CN109385646A (en) |
Cited By (2)
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| CN110921787A (en) * | 2019-12-04 | 2020-03-27 | 金川集团股份有限公司 | Method for removing free chlorine from nickel chloride electrodeposition anolyte |
| CN113122881A (en) * | 2020-01-16 | 2021-07-16 | 格林美（江苏）钴业股份有限公司 | Recycling process of cobalt residual liquid in cobalt electrodeposition process |
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| CN106835194A (en) * | 2017-01-12 | 2017-06-13 | 江苏凯力克钴业股份有限公司 | A kind of cobalt chloride electrodeposition process |
| CN207362345U (en) * | 2017-08-10 | 2018-05-15 | 格林美（江苏）钴业股份有限公司 | The circulator of electric lean solution in a kind of cobalt chloride electrolytic deposition process |
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| CN106835194A (en) * | 2017-01-12 | 2017-06-13 | 江苏凯力克钴业股份有限公司 | A kind of cobalt chloride electrodeposition process |
| CN207362345U (en) * | 2017-08-10 | 2018-05-15 | 格林美（江苏）钴业股份有限公司 | The circulator of electric lean solution in a kind of cobalt chloride electrolytic deposition process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921787A (en) * | 2019-12-04 | 2020-03-27 | 金川集团股份有限公司 | Method for removing free chlorine from nickel chloride electrodeposition anolyte |
| CN113122881A (en) * | 2020-01-16 | 2021-07-16 | 格林美（江苏）钴业股份有限公司 | Recycling process of cobalt residual liquid in cobalt electrodeposition process |
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Application publication date: 20190226 |