Methods and equipment for recovering waste diachylon by wet method and manufacturing electrode active material of high performance lead acid battery by wet method

A technology for waste lead-acid batteries and electrode active materials, which is applied to the wet recovery and reuse of lead or lead compounds, and the field of lead paste for waste lead-acid batteries, which can solve the problems of limited economic and social benefits, insufficient supply of waste lead-acid batteries, poor profitability

Active Publication Date: 2014-01-15
杨春晓
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A more realistic problem is that the electrolytic wet process equipment requires a large investment, consumes a lot of energy, and has poor profitability. Often, the price of recycled waste batteries is not competitive in the market, resulting in insufficient supply of waste lead-acid batteries and factory operating rates. Low, so the actual economic and social benefits are limited

Method used

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  • Methods and equipment for recovering waste diachylon by wet method and manufacturing electrode active material of high performance lead acid battery by wet method
  • Methods and equipment for recovering waste diachylon by wet method and manufacturing electrode active material of high performance lead acid battery by wet method
  • Methods and equipment for recovering waste diachylon by wet method and manufacturing electrode active material of high performance lead acid battery by wet method

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Embodiment 1

[0215] A process route suitable for chemical method 1 for wet recovery of waste lead paste and wet manufacturing of high-performance lead-acid battery electrode active materials, such as image 3 shown, and the equipment suitable for this chemical method 1 is as Figure 4 , 5 , 6 shown. in, Figure 4 The equipment in is composed of three main unit parts, that is, at least one reaction tank, at least one decomposition furnace, and at least one pulverizer, wherein the decomposition furnace is connected to the reaction tank and pulverizer respectively.

[0216] according to image 3 , the chemical reaction steps of this embodiment are as follows: (1) waste lead plaster reacts with sodium hydroxide to generate sodium sulfate solution and lead (hydroxide) oxide particles; Add acetic acid to the particle to form a solution, the solute in the solution is lead acetate and a small amount of lead dioxide, the soluble product generated by the reaction of lead and acetic acid; (3) mak...

Embodiment 2

[0229] A process route of chemical method 2 for wet recovery of waste lead paste and wet manufacturing of high-performance lead-acid battery electrode active materials and equipment suitable for chemical method 2 are as follows Figure 7 , 5 or 6.

[0230] according to Figure 7 , the chemical reaction steps of this embodiment are as follows: (1) waste lead plaster reacts with ammonium hydroxide to generate ammonium sulfate solution and lead (hydr) oxide particles; Nitric acid is added to the particles to form a solution, the solute in the solution is lead nitrate and a small amount of lead dioxide that may exist, and the soluble product generated by the reaction of lead and nitric acid; (3) The lead nitrate solution is reacted with ammonium carbonate to form Precipitation of solid particles and solution, wherein the main component of solid particles is lead carbonate particles, and the main component of solute in solution is ammonium nitrate; (4) Separating the solid particl...

Embodiment 3

[0239]A chemical method 3 for waste lead paste wet recovery and high-performance lead-acid battery electrode active material wet manufacturing process and equipment suitable for chemical method 3 are as follows Figure 8 , 5 or 6.

[0240] according to Figure 8 , the chemical reaction steps of this embodiment are as follows: (1) waste lead plaster reacts with sodium hydroxide to generate sodium sulfate solution and lead (hydr) oxide particles; Fluorosilicic acid is added to the particles to form a solution, the solute in the solution is lead fluorosilicate and possibly a small amount of lead dioxide, the soluble product formed by the reaction of lead and fluorosilicic acid; (3) lead fluorosilicate The solution reacts with sodium hydroxide to generate solid particle precipitation and solution, wherein the main component of the solid particle is lead hydroxide, and the main component of the solute in the solution is sodium fluorosilicate; (4) Separating the solid particle from...

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Abstract

The invention discloses methods and equipment for recovering waste diachylon by a wet method and manufacturing an electrode active substance material of a high performance lead acid battery by the wet method. The equipment comprises device required for a technology process by a chemical method, a chemical machinery method or an electrochemical machinery method. The active substance material provided by the invention can substantially raises an utilization rate of the active substance of the lead acid battery, specific energy of the battery and charging capability of the battery, simultaneously avoids generation and discharge of harmful substances such as lead gas, lead smoke, lead dust and SO2, raises a lead utilization rate in a production process, is beneficial for treating and recycling lead compounds and lead-containing liquid generated in a lead gas recovering process in a plate casting or welding technology, and reduces cost.

Description

technical field [0001] The present invention relates to a method and equipment for wet recovery and reuse of waste lead-acid battery lead paste, lead or lead compounds, in particular to an environmentally friendly, low-cost, high-performance lead-acid battery electrode active material manufacturing or A method and equipment for recycling lead paste, lead or lead compounds of waste lead-acid batteries. Background technique [0002] Since its invention, lead-acid batteries have a history of more than 150 years. At present, they are still the most widely used secondary batteries and have the largest market share (about 80%), and the global market demand for them is still about 5 per year. ~10% rate increase, which is directly related to the growth of demand for lead-acid batteries in original application fields, such as transportation, electric power, communication, etc., and emerging application fields, such as solar energy, wind energy, electric vehicles, networks, etc. With...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00C22B13/00H01M10/54
CPCY02P10/20Y02W30/84
Inventor 杨春晓
Owner 杨春晓
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