CN85200287U - Electrolyzer for solid state substance containning pb - Google Patents
Electrolyzer for solid state substance containning pb Download PDFInfo
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- CN85200287U CN85200287U CN 85200287 CN85200287U CN85200287U CN 85200287 U CN85200287 U CN 85200287U CN 85200287 CN85200287 CN 85200287 CN 85200287 U CN85200287 U CN 85200287U CN 85200287 U CN85200287 U CN 85200287U
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- lead
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Abstract
The utility model provides an electrolyzer for a solid state substance containing Pb for recycling valuable metals. The solid state electrolysis is carried out in a vertical electrolytic tank. The negative electrode is fabricated as a double-faced lining grid with the stainless steel, the aluminium or the titanium. After being pulped by the alkaline solution, the substance containing Pb is placed in the negative grid and is electrolyzed under the alkaline condition. The utility model can process various substances containing Pb, the process is simple, and the scale can be large or small. Compared with the traditional pyrometallurgical lead melting process, the utility model eliminates the pollution of sulfur dioxide and lead steam and increases the metal recovery rate by more than five percent, particularly applying to processing the waste lead acid battery.
Description
The invention belongs to the solid phase electrolytic metallurgy field of lead materials.The present invention is particularly suitable for handling waste lead accumulator, to reclaim wherein valuable metal.
Extract metallic lead from ore, concentrate, secondary material, traditional method is the fire reduction melting, because this method high-temperature operation, emit a large amount of sulfurous gas and lead steam during smelting, cause severe environmental pollution, operator's lead poisoning, and this process metal rate of recovery is low, and fuel consumption is big.
In order to overcome the shortcoming that pyrometallurgical smelting of lead exists, extensively carried out the research of hydrometallurgical extraction metallic lead.But the method for being studied is not long flow path, energy consumption height, production cost is higher than pyrogenic process, is exactly that device structure does not solve, and does not have a kind of method to be used for industrial production so far.As research such as E.R.Cole from the waste lead accumulator charging, reclaim plumbous (J of Metals 1983 Vol 35 No.8) with electrodip process, carried out for two steps earlier to transform, at last at H
2SiF
6Middle electrodeposition becomes metallic lead, and its electrolytic power consumption is that 700 degree/tons are plumbous.In addition, English Patent 1368423 and 1428957 has been reported the plumbous method of solid phase electrolytic reduction refining, and this method technical process is simpler, has eliminated the pollution of sulfurous gas and lead steam, and metal recovery rate is higher.Be placed directly in electrolysis on the negative electrode but the solid phase electrolysis is a pulverulent material, adopt horizontal electrode and hoop formula electrode, be unsuitable for extensive explained hereafter, and when handling waste lead accumulator, unresolved useless pole plate takes off the frame problem, the industrialization so this technology also is unrealized.
The purpose of this invention is to provide a device that is suitable for industrial solid phase electrolysis lead-containing material.
The solid phase electrolysis is carried out in vertical electrode electrolyser, in order to make lead-containing material be attached to the cathode surface of solid phase electrolyzer securely, before being added to cathode surface, use earlier the basic solution pulp, place the alkaline medium electrolysis then, the metallic lead of electrolytic reduction is cast lead pig 450-650 ℃ of fusing.If material handling is a waste lead accumulator, then earlier the scrap battery pole plate is taken off frame, framework is a lead antimony alloy, and directly cold melt can be recycled, and filler is solid phase reclaiming metals lead after sizing mixing.
The invention provides a vertical solid phase electrolyzer, cathode and anode can be made by stainless steel, lead or titanium, and the lattice plate of negative electrode two sides lining stainless steel, lead or titanium is divided into some lattice with negative electrode, to carry electrolytic lead-containing material.
Vertical solid phase electrolyzer is seen Fig. 1, and it comprises an electrolyzer (1), electrolytic solution (2), electric heating tube (3), anode (4), negative electrode (5), slurry (6), extraction hood (7), air outlet (8) composition.The brick one-tenth of electrolyzer, plastic lining is cemented outward.Used for electrolyte electric heating tube or heat with methods such as steam jackets.During electrolysis, anode is emitted oxygen and is carried some water vapors secretly, and by extraction hood (7), air outlet (8) are discharged the workshop and reclaimed or emptying.
Cathode construction is seen Fig. 2, the cathode surface lining with the lattice plate of negative electrode same material, the lattice plate is wide to be the 5-15 millimeter, compartment is apart from being the 20-60 millimeter.
Slurry was sized mixing with the sodium hydroxide solution of 0.5-10 mole (preferably 6-8 mole) earlier before being added to negative electrode.
Before the electrolysis, earlier alkaline electrolyte is fitted on suitable concentration, as used for electrolyte sodium hydroxide, then concentration is fitted on 2-5 mole (preferably 2.5-3.5 mole), again the negative electrode of the slurry of packing into is put into electrolyzer (1) with anode, electrolysis temperature is 20-60 ℃ (being preferably 50-60 ℃), and current density is a 200-1000 peace/rice
2(be preferably 400-700 peace/rice
2).Be Powdered and spongy metal lead on the taking-up negative electrode after the electrolysis, lead pig is cast in fusing in the time of 450-650 ℃.
By refining splicer skill provided by the invention, no sulfurous gas and lead steam discharging, total system has realized closed cycle, has solved the severe contamination problem of pyrometallurgical smelting of lead.When handling waste lead accumulator, metal recovery rate improves 5% than traditional pyrogenic process, and productive expense reduces by 15%, and the product unit output value improves 6%, and energy consumption reduces by 33%.
Below be that several pure lead compounds and waste lead accumulator slurry carry out electrolytic two examples in vertical solid phase electrolyzer:
Example 1 carries out the solid phase electrolysis respectively with pure lead sulfate, plumbous oxide, lead carbonate, plumbic oxide.The cathode and anode material of vertical solid phase electrolyzer is a stainless steel.Adorn 1 negative electrode and 1 anode in the electrolyzer.Every negative electrode 20 gram materials (butt) of packing into, with 8 moles sodium hydroxide solution pulp, electrolytic solution is 3.75 molar sodium hydroxide solutions to material before being added to negative electrode, 60 ℃ of electrolysis temperatures, current density is 650 peace/rice
2Following table is several lead compound solid phase electrolysis results:
Example 2, the waste lead accumulator slurry carries out the solid phase electrolysis.Slurry sulfur-bearing lead plumbate 48.3% plumbic oxide 38.9%, the cathode and anode material of vertical solid phase electrolyzer is a stainless steel, and 3 anodes are housed in the electrolyzer, 2 negative electrodes.Every negative electrode (two sides) the 10 kilograms of slurries (butt) of packing into, slurry before being added on the negative electrode with 8 moles sodium hydroxide solution pulp.Electrolytic solution is 3.75 moles sodium hydroxide solution, and electrolysis temperature is 60 ℃, and current density is 500 peace/rice
2Average cell voltage is 1.83 volts, electrolysis 12 hours, lead recovery is 94.4%, and power consumption is that 650 degree/tons are plumbous, and alkaline consumption is 126 kilograms of/ton lead, current efficiency 75.5%, the plumbous quality of electricity is except copper, and other foreign matter contents all reach plumbous standard No. 1, and copper can add sulphur during ingot casting in fusing and removes in the electric lead.
Under above electrolytic condition, carried out continuous 30 solid phase electrolysis again, after promptly each electrolysis finishes, from electrolyzer, take out the good negative electrode of electrolysis, another group of putting into the slurry that has installed again needs electrolytic negative electrode, carries out new once electrolytic.Adjust the naoh concentration of electrolytic solution about 3.75 moles before each electrolysis.30 times the continuous electrolysis temperature is 60 ℃, and average initial naoh concentration is 3.67 moles, each electrolysis 12 hours, the mean lead rate of recovery is 91.5%, average current drain is that 675 degree/tons are plumbous, and average alkaline consumption is 172.2 kilograms of/ton lead, and mean current efficient is 75.6%.
The framework fusing rate of recovery is that 80-90%(is with the fluctuation of framework extent of corrosion).
Following table is planted with traditional reverberatory furnace refining splicer skill in the comparison aspect raw material consumption, metal recovery rate and the pollution condition three for solid phase electrolysis refining splicer.
Found out by the invention example, the Solid phase electrolysis refining splicer skill of vertical unit, process is simple, and is easy to operate, is convenient to promote, and scale is changeable, is suitable for processing multiple lead-containing material, is particularly suitable for processing secondary materials such as reclaiming waste lead accumulator. Compare with thermal process, not only eliminated pollution, lead recovery improves more than 5%, and product structure is reasonable. Solid phase electrolysis technology has two products: the lead-antimony alloy and the electricity that contain antimony 6.5-7% are plumbous, can both directly use. And the thermal process product only has a lead-antimony alloy that contains antimony 3.5%, can not directly use, and must again carry out electrorefining.
Solid phase electrolysis refining splicer plants with traditional reverberatory furnace refining splicer comparison sheet of planting＊
* to process 1 ton of useless pole plate as benchmark.
Claims (2)
1, the device of lead-containing material solid phase electrolytic recovery lead comprises electrolyzer, negative electrode, anode, heating tube composition.It is characterized in that negative electrode and anode by stainless steel, titanium or the plumbous vertical electrode of making, cathode surface is evenly installed stainless steel, titanium or leads, and negative electrode is divided into trellis.
2, by the described device of claim 1, it is characterized in that stainless steel, titanium or the leads of negative electrode two sides institute lining, wide is the 5-15 millimeter, two compartments distance is the 20-60 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85200287 CN85200287U (en) | 1985-04-01 | 1985-04-01 | Electrolyzer for solid state substance containning pb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85200287 CN85200287U (en) | 1985-04-01 | 1985-04-01 | Electrolyzer for solid state substance containning pb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85200287U true CN85200287U (en) | 1985-11-10 |
Family
ID=4796670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85200287 Expired - Lifetime CN85200287U (en) | 1985-04-01 | 1985-04-01 | Electrolyzer for solid state substance containning pb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85200287U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748277A (en) * | 2008-12-03 | 2010-06-23 | 江苏航虹电源有限公司 | Method for recovering lead from waste lead acid batteries |
| CN104711637A (en) * | 2013-12-12 | 2015-06-17 | 沈阳有色金属研究院 | Method for recovering metal lead from solid lead oxide |
| WO2018014747A1 (en) * | 2016-07-19 | 2018-01-25 | 云南祥云飞龙再生科技股份有限公司 | Process for preparing lead by means of ammonium sulfate ammonia electroreduction |
| CN111270075A (en) * | 2020-03-04 | 2020-06-12 | 云南祥云飞龙再生科技股份有限公司 | Process for preparing lead by solid-phase electrolysis of waste lead battery paste |
-
1985
- 1985-04-01 CN CN 85200287 patent/CN85200287U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748277A (en) * | 2008-12-03 | 2010-06-23 | 江苏航虹电源有限公司 | Method for recovering lead from waste lead acid batteries |
| CN104711637A (en) * | 2013-12-12 | 2015-06-17 | 沈阳有色金属研究院 | Method for recovering metal lead from solid lead oxide |
| CN104711637B (en) * | 2013-12-12 | 2017-05-10 | 沈阳有色金属研究院 | Method for recovering metal lead from solid lead oxide |
| WO2018014747A1 (en) * | 2016-07-19 | 2018-01-25 | 云南祥云飞龙再生科技股份有限公司 | Process for preparing lead by means of ammonium sulfate ammonia electroreduction |
| US10584424B2 (en) | 2016-07-19 | 2020-03-10 | Xiangyun Tenglong Investment Co., Ltd. | Process for preparing lead by electroreduction with ammonium sulfate and ammonia |
| CN111270075A (en) * | 2020-03-04 | 2020-06-12 | 云南祥云飞龙再生科技股份有限公司 | Process for preparing lead by solid-phase electrolysis of waste lead battery paste |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |