CN203419995U - Membrane electrodeposition device for metal sulfate liquor refining - Google Patents
Membrane electrodeposition device for metal sulfate liquor refining Download PDFInfo
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- CN203419995U CN203419995U CN201320508822.1U CN201320508822U CN203419995U CN 203419995 U CN203419995 U CN 203419995U CN 201320508822 U CN201320508822 U CN 201320508822U CN 203419995 U CN203419995 U CN 203419995U
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Abstract
The utility model provides a membrane electrodeposition device for metal sulfate liquor refining. The membrane electrodeposition device mainly comprises a tank, an anode assembly, a cathode, an anode chamber circulating pipeline and a cathode chamber circulating pipeline, wherein the anode assembly is composed of meshed plates, anion-exchange membranes and plate frames, all of which are symmetrically distributed on the two sides of an anode plate, sealing gaskets are sandwiched between the meshed plates, the anion-exchange membranes and the plate frames, and all of the components are bonded together by epoxy resin; the anode chamber circulating pipeline is composed of a three-way joint, a flowmeter, a circulating pump and an anode liquor circulating box; the cathode chamber circulating pipeline is composed of a three-way joint, a flowmeter, a circulating pump and a cathode liquor circulating box. The membrane electrodeposition device for metal sulfate liquor refining is capable of causing an electrolyte to flow circularly and reducing concentration polarization, and thus improving the current efficiency, reducing the unit energy consumption and also obtaining by-product sulfuric acid; the device is simple in arrangement, convenient to mount, demount and repair and high in automation degree, and can be easily operated by personnel.
Description
Technical field
The invention provides a kind of film electrowinning plant for solution of metal sulfates refining, is a kind of refining of metal device that electrochemical reduction is combined with ion-exchange membrane technique, belongs to Metal smelting field.
Background technology
At present, the refining of metal process institute employing method in copper, zinc and nickel metal wet method smelting process is electrochemical reducing.The method is to using acid metal sulfate liquor as electrolytic solution, at negative electrode generation electrochemical reducting reaction, generates metal simple-substance; At anode generation electro-oxidation reaction.Winning cell major part according to the made refining of metal of electrochemical reducing is all to open wide system, and without barrier film setting, anode is fixed in Winning cell, negative electrode is suspended in metallic compound electrolytic solution, electrolyte flow is slow, almost static, electrode around concentration of electrolyte can decline rapidly, thereby causes concentration polarization, mass-transfer of electrolyte becomes control step, can cause like this electrode side reaction to increase, reduce current efficiency, increase energy consumption; Electric current is inhomogeneous respectively on battery lead plate, easily causes negative plate to bend, and polar board surface easily forms bur; Also, because electrolytic solution is exposed to outside atmosphere, be vulnerable to the pollution of foreign matter, dirt carrying as koniology, shop personnel etc. easily enters in electrolytic solution, can affect the quality of electrodeposit metals.The enterprise of Metal smelting both at home and abroad, in order to overcome above-mentioned defect, adopts closed electrodeposition groove, and electrolytic solution is sealed, and stops and contacts with outside atmosphere; But also there is such problem: negative electrode dismounting inconvenience, repeatedly dismounting can cause poorly sealed.
Film electrolysis tech is a fast-developing in recent years emerging technology, has the characteristic functions such as separation, concentrated, purification due to it, is widely used in chlorine industry, sea water desaltination, organic synthesis, water treatment field.Membrane electrolyser preparation is comparatively simple, can forming unit operate, be easy to realize auto-control, is convenient to librarian use, and recyclable useful matter, can not produce secondary pollution again.
Summary of the invention
The object of the invention: the shortcoming for the common metal Winning cell that method of refining adopts of above-mentioned solution of metal sulfates, provides a kind of anode closed, distribution of current is even, current efficiency is high, galvanic deposit quality is good and can produces the film electrowinning plant of byproduct sulphuric acid soln.
Concrete technical scheme: the invention provides a kind of film electrowinning plant for solution of metal sulfates refining, this film electrowinning plant mainly comprises cell body, anode assemblies, negative electrode, anolyte compartment's circulation line and cathode compartment circulation line, the mesh plate that described anode assemblies is symmetric by positive plate both sides, anion-exchange membrane, sheet frame form, mesh plate, anion-exchange membrane, sheet frame and positive plate accompany gasket each other, and are bonded together with epoxy resin; Described anolyte compartment's circulation line, cathode compartment circulation line are connected respectively in the top of sheet frame, cathode compartment and bottom, are marked with dilution heat of sulfuric acid in sheet frame, and cathode compartment is marked with nickel sulfate solution or solution of zinc sulfate; Wherein, described anolyte compartment's circulation line is comprised of Y-junction, under meter, recycle pump, anolyte circulating box, and described cathode compartment circulation line is comprised of Y-junction, under meter, recycle pump, catholyte circulating box.
Described anode assemblies is placed in the groove of cell body, and is fixed sealing with plastic welding rod.
Described cell body is by synthetic glass, or glass reinforced plastic, or polytetrafluoroethylplastic plastic makes, and is shaped as rectangular parallelepiped.
Described sheet frame is UPVC material rectangle hollow structure, and thickness is 8mm ~ 10mm.
Described gasket is 4 third viton, and pros and cons posts double faced adhesive tape.
Described positive plate is titanium-based metal oxide electrode or Pb-Ag alloy electrode.
Described anion-exchange membrane is amino ion-exchange membrane of season.
Described negative electrode is 2, and is all set in parallel with anode assemblies.
The beneficial effect that the present invention possesses: this film electrowinning plant is applicable to take the metal electro-deposition refining process that metal sulfate electrolytic solution is raw material, can obtain electrodeposit metals quality good, without secondary environmental pollution.Can in anode assemblies, obtain 5% ~ 8% sulphuric acid soln byproduct, can be back to other process engineering ，Wei enterprise and bring certain economic benefit.Because electrolytic solution is in flow state, distribution of current is more even, alleviates electrolytic process concentration polarization, reduces the chance of occurrence of electrode side reaction, thereby improves current efficiency, reduces unit consumption of energy.This device preparation is simple, loads and unloads easy to maintenancely, and level of automation is high, is easy to personnel's operation.
accompanying drawing explanation
A kind of film electrowinning plant structural representation for solution of metal sulfates refining of Fig. 1
1-cell body, 2-anode assemblies, 3-negative electrode ，4-anolyte compartment circulation line, 5-cathode compartment circulation line, 6-Y-junction, 7-under meter, 8-recycle pump, 9-anolyte circulating box, 10-catholyte circulating box, 11-cathode compartment.
Fig. 2 anode assemblies sectional view
a1-positive plate, A2-mesh plate, A3-anion-exchange membrane, A4-sheet frame, A5-gasket.
Embodiment
Below in conjunction with accompanying drawing 1, with Fig. 2, the present invention is elaborated.
As shown in Figures 1 and 2, a kind of film electrowinning plant for solution of metal sulfates refining, mainly comprise cell body 1, anode assemblies 2, negative electrode 3, anolyte compartment's circulation line 4 and cathode compartment circulation line 5, the mesh plate A2 that described anode assemblies 2 is symmetric by positive plate A1 both sides, anion-exchange membrane A3, sheet frame A4 form, mesh plate A2, anion-exchange membrane A3, sheet frame A4 and positive plate A1 accompany gasket A5 each other, and are bonded together with epoxy resin; Described anolyte compartment's circulation line 4, cathode compartment circulation line 5 are connected respectively in top and the bottom of sheet frame A4, cathode compartment 11, in sheet frame A4, are marked with dilution heat of sulfuric acid, and cathode compartment 11 is marked with nickel sulfate solution or solution of zinc sulfate; Wherein, described anolyte compartment's circulation line 4 is comprised of Y-junction 6, under meter 7, recycle pump 8, anolyte circulating box 9, and described cathode compartment circulation line 5 is comprised of Y-junction 6, under meter 7, recycle pump 8, catholyte circulating box 10.
Described anode assemblies 2 is placed in the groove of cell body 1, and is fixed sealing with plastic welding rod.
Described cell body 1 is by synthetic glass, or glass reinforced plastic, or polytetrafluoroethylplastic plastic makes, and is shaped as rectangular parallelepiped.
Described sheet frame A4 is UPVC material rectangle hollow structure, and thickness is 8mm ~ 10mm.
Described gasket A5 is 4 third viton, and pros and cons posts double faced adhesive tape.
Described positive plate A1 is titanium-based metal oxide electrode or Pb-Ag alloy electrode.
Described anion-exchange membrane A3 is amino ion-exchange membrane of season.
Described negative electrode 3 is 2, and is all set in parallel with anode assemblies 2.
A kind of film electrowinning plant operational process for solution of metal sulfates refining: before electric power starting, 0.5% ~ 0.8% dilution heat of sulfuric acid, nickel sulfate solution or solution of zinc sulfate are flow into anode assemblies 2, cathode compartment 11 by anolyte compartment's circulation line 4, cathode compartment circulation line 5 correspondences respectively, maintain separately constant density cycle operation 1min ~ 3min.Device energising, selects suitable processing parameter to carry out galvanic deposit, can collect anode assemblies and produce gas, when anode assemblies 2 dilution heat of sulfuric acid concentration reach 5% ~ 8%, can by sulphuric acid solution extraction out, inject pure water simultaneously simultaneously; Cathode electrodeposition metal simple-substance, until required deposit thickness.
Embodiment 1
In zinc wet smelting process, acid leaching liquor-20g/L solution of zinc sulfate is as catholyte.Cell body 1 is made by synthetic glass, is shaped as rectangular parallelepiped.Negative electrode 3 is selected zine plate, and positive plate A1 selects Pb-Ag alloy electrode.The mesh plate A2 that anode assemblies 2 is symmetric by positive plate A1 both sides, anion-exchange membrane A3, sheet frame A4 form, mesh plate A2, anion-exchange membrane A3, sheet frame A4 and positive plate A1 accompany gasket A5 each other, and are bonded together with epoxy resin.Mesh plate A2 selects band circular hole sheet plastic, and anion-exchange membrane A3 selects amino ion-exchange membrane of season, and sheet frame A4 selects UPVC material rectangle hollow structure, and thickness is 8mm, and gasket A5 selects the 4 third viton sheets of thickness 2mm, and pros and cons posts double faced adhesive tape.The anode assemblies 2 preparing is put into the groove of cell body 1, and is fixed sealing with plastic welding rod.0.5% dilution heat of sulfuric acid, 20g/L solution of zinc sulfate are flow in anode assemblies 2, cathode compartment 11 by anolyte compartment's circulation line 4, cathode compartment circulation line 5 correspondences respectively, by under meter 7, regulating speed of circulation is 0.1m/s ~ 0.2m/s, when all solution forms loop, power-on energising, current density is 300A/m
2, electrolysis can obtain fine and close zine plate in 2 days, is extracted and is obtained 0.5m simultaneously by anode assemblies 2
35% sulphuric acid soln.
Embodiment 2
Preparation 40g/L nickel sulfate solution is as catholyte.Cell body 1 is made by glass reinforced plastic, is shaped as rectangular parallelepiped.Negative electrode 3 is selected nickel plate, and positive plate A1 selects titanium-based metal oxide electrode.The mesh plate A2 that anode assemblies 2 is symmetric by positive plate A1 both sides, anion-exchange membrane A3, sheet frame A4 form, mesh plate A2, anion-exchange membrane A3, sheet frame A4 and positive plate A1 accompany gasket A5 each other, and are bonded together with epoxy resin.Mesh plate A2 selects band circular hole sheet plastic, and anion-exchange membrane A3 selects amino ion-exchange membrane of season, and sheet frame A4 selects UPVC material rectangle hollow structure, and thickness is 10mm, and gasket A5 selects the 4 third viton sheets of thickness 2mm, and pros and cons posts double faced adhesive tape.The anode assemblies 2 preparing is put into the groove of cell body 1, and is fixed sealing with plastic welding rod.0.8% dilution heat of sulfuric acid, 40g/L nickel sulfate solution are flow in anode assemblies 2, cathode compartment 11 by anolyte compartment's circulation line 4, cathode compartment circulation line 5 correspondences respectively, by under meter 7, regulating speed of circulation is 0.1m/s ~ 0.2m/s, when all solution forms loop, power-on energising, current density is 400A/m
2, electrolysis can obtain fine and close nickel plate for 3 days, is extracted and is obtained 0.8m simultaneously by anode assemblies 2
38% sulphuric acid soln.
Claims (8)
1. the film electrowinning plant for solution of metal sulfates refining, it is characterized in that: this film electrowinning plant mainly comprises cell body, anode assemblies, negative electrode, anolyte compartment's circulation line and cathode compartment circulation line, the mesh plate that described anode assemblies is symmetric by positive plate both sides, anion-exchange membrane, sheet frame form, mesh plate, anion-exchange membrane, sheet frame and positive plate accompany gasket each other, and are bonded together with epoxy resin; Described anolyte compartment's circulation line, cathode compartment circulation line are connected respectively in the top of sheet frame, cathode compartment and bottom, are marked with dilution heat of sulfuric acid in sheet frame, and cathode compartment is marked with nickel sulfate solution or solution of zinc sulfate; Wherein, described anolyte compartment's circulation line is comprised of Y-junction, under meter, recycle pump, anolyte circulating box, and described cathode compartment circulation line is comprised of Y-junction, under meter, recycle pump, catholyte circulating box.
2. a kind of film electrowinning plant for solution of metal sulfates refining according to claim 1, is characterized in that: described anode assemblies is placed in the groove of cell body, and is fixed sealing with plastic welding rod.
3. a kind of film electrowinning plant for solution of metal sulfates refining according to claim 1, is characterized in that: described cell body is by synthetic glass, or glass reinforced plastic, or polytetrafluoroethylplastic plastic makes, and is shaped as rectangular parallelepiped.
4. a kind of film electrowinning plant for solution of metal sulfates refining according to claim 1, is characterized in that: described sheet frame is UPVC material rectangle hollow structure, and thickness is 8mm ~ 10mm.
5. a kind of film electrowinning plant for solution of metal sulfates refining according to claim 1, is characterized in that: described gasket is 4 third viton, and pros and cons posts double faced adhesive tape.
6. a kind of film electrowinning plant for solution of metal sulfates refining according to claim 1, is characterized in that: described positive plate is titanium-based metal oxide electrode or Pb-Ag alloy electrode.
7. a kind of film electrowinning plant for solution of metal sulfates refining according to claim 1, is characterized in that: described anion-exchange membrane is amino ion-exchange membrane of season.
8. a kind of film electrowinning plant for solution of metal sulfates refining according to claim 1, is characterized in that: described negative electrode is 2, and is all set in parallel with anode assemblies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320508822.1U CN203419995U (en) | 2013-08-20 | 2013-08-20 | Membrane electrodeposition device for metal sulfate liquor refining |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320508822.1U CN203419995U (en) | 2013-08-20 | 2013-08-20 | Membrane electrodeposition device for metal sulfate liquor refining |
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| CN203419995U true CN203419995U (en) | 2014-02-05 |
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| CN201320508822.1U Expired - Fee Related CN203419995U (en) | 2013-08-20 | 2013-08-20 | Membrane electrodeposition device for metal sulfate liquor refining |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388161A (en) * | 2013-08-20 | 2013-11-13 | 兰州交通大学 | Membrane electrode device for refining metal sulfate solution |
| CN106245066A (en) * | 2016-07-27 | 2016-12-21 | 苏州市枫港钛材料设备制造有限公司 | A kind of hydrometallurgy ion-exchange membrane electrolyzer |
-
2013
- 2013-08-20 CN CN201320508822.1U patent/CN203419995U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388161A (en) * | 2013-08-20 | 2013-11-13 | 兰州交通大学 | Membrane electrode device for refining metal sulfate solution |
| CN103388161B (en) * | 2013-08-20 | 2016-05-11 | 兰州交通大学 | A kind of film electrowinning plant for solution of metal sulfates refining |
| CN106245066A (en) * | 2016-07-27 | 2016-12-21 | 苏州市枫港钛材料设备制造有限公司 | A kind of hydrometallurgy ion-exchange membrane electrolyzer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20140820 |
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| EXPY | Termination of patent right or utility model |