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Waste lead storage battery acid type wet method process

A waste lead-acid battery, wet treatment technology, applied in the direction of battery recycling, process efficiency improvement, waste collector recycling, etc., can solve problems such as complex process flow, to overcome complex process flow, large market value, and reduce total cost Effect

Inactive Publication Date: 2012-01-04
苏文峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the above-mentioned deficiencies in the prior art, the main purpose of the present invention is to solve the problem that the technological process is too complicated when processing waste lead-acid batteries at present, and provide a processing Process method for waste lead-acid battery treatment with simpler process and lower production cost

Method used

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  • Waste lead storage battery acid type wet method process
  • Waste lead storage battery acid type wet method process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: as figure 1 Shown, a kind of waste lead storage battery acid type wet treatment process, comprises the following steps:

[0023] 1) Crushing waste lead-acid batteries manually or with a crusher to separate sulfuric acid, plastic shells and separators in waste lead-acid batteries, and recycle and purify the separated plastic shells and separators according to the existing technology. Among them, the plastic shell can be remade into a plastic plate after being broken and dissolved;

[0024] 2) Transfer the remaining waste lead-acid batteries after the crushing treatment in step 1) to a mechanical separator and use vibration flotation method for treatment, and obtain grids and active mud after separation, wherein the grids are formulated and refined It can be made into multi-element lead alloy ingots; it should be noted that the crusher, mechanical separator and vibration flotation method mentioned in step 1 and step 2 all have existing common equipm...

Embodiment 2

[0028] Embodiment 2: Another kind of waste lead storage battery processing technology, its steps a, b are the same as steps 1, 2 of embodiment 1, and start to adjust from step c, the scheme of its adjustment is as follows:

[0029] C, carry out ionized reduction treatment with the hydrogen peroxide of 17% with mass ratio concentration earlier with described active mud, then transfer to the first autoclave and dissolve with ammonia solution under 7 atmospheric pressures, then transfer to the second autoclave The pressure is 5 atmospheres, and the temperature is 100°C for conversion with ammonium carbonate, and sedimentation and pressure filtration at normal temperature and pressure;

[0030] d. Dissolving and purifying the precipitate obtained in step c with sodium hydroxide having a mass ratio concentration of 35% at a temperature of 45°C, and then precipitating and crystallizing with a sulfuric acid solution, thereby obtaining positive electrode paste and negative elec...

Embodiment 3

[0032] Embodiment 3: Another kind of waste lead storage battery processing technology, its steps ①, ② are identical with the steps 1, 2 of embodiment 1, and start to adjust from step ③, the scheme of its adjustment is as follows:

[0033]③ The active mud is first ionized and reduced with a ferrous sulfate solution with a mass ratio concentration of 13%, then transferred to the first autoclave and dissolved with ammonia solution under 7 atmospheric pressures, and then transferred to the second autoclave Transformation is carried out with ammonium carbonate in an environment with a pressure of 5 atmospheres and a temperature of 80°C, and precipitation and pressure filtration at normal temperature and pressure;

[0034] ④ Dissolve and purify the precipitate obtained in step ③ with potassium hydroxide with a mass ratio concentration of 32% at a temperature of 50°C, then precipitate and crystallize with sulfuric acid solution, and then obtain positive electrode paste and negativ...

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Abstract

The invention relates to a waste lead storage battery acid type wet method process which comprises the following steps of: (1) delivering a waste lead storage battery into a crusher for separating sulfuric acid, a plastic shell and a partition plate; (2) transferring a crushed waste lead storage battery residue into a mechanical separator for processing and separating to obtain a grid and activated sludge; (3) processing the activated sludge by using a reducing agent with the concentration of 11-17 percent, transferring the activated sludge into a first autoclave for dissolving with an ammoniac solution, transferring the activated sludge into a second autoclave for converting with ammonium carbonate, settling, pressing and filtering; (4) dissolving and purifying a sediment obtained in thestep (3) by using soluble acid or alkali with the concentration of 25-35 percent in the temperature environment of 45-50 DEG C and settling and crystallizing by using a sulfuric acid solution to obtain anode paste and cathode paste; and (5) respectively coating the anode paste and the cathode paste on plates and switching on the coating plates in an H2SO4 solution with specific gravity of 1-2 to obtain an anode plate and a cathode plate of a novel lead storage battery. The invention has the advantages of simple processing flow, lower production cost and great market value.

Description

technical field [0001] The invention relates to a treatment method for waste lead storage batteries. In the method, lead paste is obtained after processing recycled waste lead storage batteries, and the positive and negative plates of new lead storage batteries are directly electrolyzed by the lead paste. Background technique [0002] With the advancement of science and technology and the improvement of people's living standards, the application of lead-acid batteries involves almost all aspects of people's production and life. However, the accompanying waste lead-acid batteries have caused serious pollution to the environment. Therefore, the disposal of waste lead-acid batteries China's environmental protection technology is increasingly valued by the state. [0003] The processing methods of waste lead-acid batteries mainly include fire process and wet process. In many enterprises that specialize in the treatment of waste lead-acid batteries, the traditional pyrotechnic p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/54
CPCY02P10/20Y02W30/84
Inventor 苏文峰苏苹
Owner 苏文峰
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