Selectivity volatilization reclaiming technique for waste zinc-manganese battery and reclaiming system thereof

Abstract

The present invention relates to a selective volatilization recovery technology for abandoned zinc-manganese battery, which comprises the steps of that: the surface layer of the battery is broken and scrubbed, thereby the tank liquor, washed up surface layer matter and contained matter are obtained; then the remaining solid containing manganese/ferric oxide and high pure gas are obtained by high temperature carbonization in a properly closed roaster, wherein the temperature inside of the roaster is controlled; the multiple scrubbed tank liquor is heated and concentrated to obtain concentrate which is further heated and cooled to obtain ammonium chloride with a high purity; the distilled off hot gas is guided into a condensation and recovery container and is cooled to be separated and collected thereof, thereby the powder containing zinc and/or zinc oxide is obtained; the remaining solid is subjected to acid soluble to obtain the manganese sulfate primordial solution which is then subjected to oxidation, alkali-settling and separation so as to obtain the purified manganese sulfate solution. In the present invention, the bulk inclusion in the zinc-manganese battery can be completely recovered, the recovered product has a higher purity, the recovery operation and the equipment thereof is simple, and secondary pollution will not occur basically.

Description

technical field [0001] The invention relates to a recycling technology of waste batteries, more specifically, the invention relates to a recycling process of waste zinc-manganese batteries and related equipment systems. Background technique [0002] Modern society has entered the electronic age, and there are more and more types of mechanical and electrical products and electronic equipment in modern society, and the quantity is getting larger and larger. Among these products / equipment, the chemical power source-battery, which is convenient to carry and mobile use, is widely used . Among them, batteries in commonly used appliances and vehicles mainly include primary batteries represented by zinc-manganese batteries. The zinc-manganese battery includes the following coating surface material and electrochemically active content, wherein the coating surface material includes: iron casing, sealing material asphalt, plastic, paper and other materials; the electrochemically activ...

AI Technical Summary

Problems solved by technology

This method has similar disadvantages with the aforementioned method: adopting the electrolytic method to reclaim and extract the zinc and manganese in the waste alkali-manganese battery consumes a lot of electricity, which is not suitable for the overall economic situation of the domestic electric energy shortage, and the method uses a strong acid electrolyte, and the preparation process is more complicated. Complicated, worse working conditions, and secondar...

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