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A method and device for recovering lead from battery waste

A technology of waste materials and batteries, which is applied in the field of electrolytic devices and electrolytic recovery of lead, can solve the problems of high energy consumption and serious pollution, and achieve the effects of reducing environmental pollution, improving labor protection, and reducing energy consumption

Active Publication Date: 2019-09-24
湖南省金翼有色金属综合回收有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 2. High energy consumption
[0005] 3. Serious pollution
However, this closed loop is related to the continuous production of batteries and does not involve the closed loop of electrolytic lead electrolyte circulation.

Method used

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  • A method and device for recovering lead from battery waste

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031]Embodiment 1: Cathode compartment and anode compartment are all passed into electrolytic solution sodium acetate, and the concentration of sodium acetate is the aqueous solution of 15%, and anode compartment is the inner tank that ceramic diaphragm forms, and cathode compartment is formed by the space between outer tank and inner tank Composition, the height of the anolyte is higher than that of the catholyte, the height difference is 5cm, the anode is placed in the anode chamber and connected to the positive electrode of the power supply through a wire, the cathode conductive tray is placed at the bottom of the outer tank, and the battery waste sulfuric acid to be electrolyzed is placed in the conductive tray Lead, the conductive tray is connected to the negative pole of the external power supply through a wire, and the electrolysis starts when the power is turned on, and the sponge lead is precipitated on the cathode. The electrolyte is discharged from the bottom of the...

Embodiment 2

[0032] Embodiment 2 The concentration that feeds sodium acetate for the first time is 20%, the concentrated sodium acetate electrolyte concentration is 30%, and the liquid level difference is 10cm, and all the other are the same as embodiment 1.

Embodiment 3

[0033] Embodiment 3 first feeds the concentration of sodium acetate to be 18%, the concentrated sodium acetate electrolyte concentration is 27%, and the liquid level difference is 15cm, and all the other are the same as embodiment 1.

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Abstract

The invention discloses a method for electrolytic recovery of lead from battery wastes for thorough recycling of electrolytic solution and an electrolysis device. The device comprises a diaphragm electrolysis chamber with an inner groove and an outer groove; the liquid level of the inner groove is higher than the liquid level of the outer groove; after the electrolytic solution in the inner and outer grooves is drained, precipitations and electrolytes are generated; and the electrolyte solution is returned to the electrolysis chamber for recycling, so that the recovery of lead-contained wastesin batteries is realized, the environmental pollution is prevented, the zero emission of the electrolytic solution in the electrolysis process is realized, the energy is saved, and the environmentalprotection is improved.

Description

technical field [0001] The invention relates to a recycling of battery waste, in particular to a method for electrolyzing and recovering lead from battery waste for thorough recycling of electrolyte and an electrolysis device using the same. Background technique [0002] Since the lead-acid battery was proposed by French engineer Plante in 1859, lead-acid battery has been widely used as a cheap and reliable rechargeable battery such as electric vehicles, automobiles, and uninterruptible UPS power supplies. In recent years, although there is competition from lithium-ion batteries and nickel-metal hydride batteries, lead-acid batteries have always been at the top of the secondary batteries, accounting for nearly 60% of the global output value of secondary batteries. According to the statistics of power supply-related industry associations, China's lead consumption reached more than 3.5 million tons in 2009, accounting for more than 23% of the world's total lead consumption. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C1/18C25C7/00
CPCC25C1/18C25C7/00Y02P10/20
Inventor 李爱芝
Owner 湖南省金翼有色金属综合回收有限公司