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Comprehensive waste cell utilizing treamtent process

A treatment process and technology for used batteries, applied in battery recycling, recycling technology, recycling by waste collectors, etc., can solve problems such as waste, failure to be treated, soil and groundwater pollution, etc. The effect of the route is reasonable and feasible

Inactive Publication Date: 2002-05-15
王宗良 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the batteries contain heavy metals such as mercury, cadmium, and lead, they have not been effectively and thoroughly treated, causing pollution to soil and groundwater.
The battery also contains zinc, copper, iron, manganese, carbon powder, etc., and it is also discarded. From the perspective of resource recycling, it is also a great waste
Now many cities across the country are constantly strengthening their awareness of environmental protection, and they also attach great importance to the recycling of used batteries. However, how to deal with a large number of collected old batteries is another big problem.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment one: the treatment of zinc-manganese waste batteries. One ton of zinc-manganese waste batteries.

[0042] 1. Break the zinc-manganese battery obtained by magnetic separation, and sieve it with a 20-mesh sieve to obtain 600kg of black powder mixture, which contains electrolytic paste, starch, a small amount of ammonium chloride, zinc chloride, and a part of broken zinc skin and chloride Mercury; about 400 kg of sieve residue, including 130-160 kg of zinc skin, about 60 kg of carbon rod, 3-4 kg of copper cap, about 17 kg of iron sheet, 40-60 kg of sealing pitch, 20-30 kg of wrapping paper, and others Electrolytic paste and black powder attached to the zinc skin.

[0043] 2. The iron sheet is magnetically separated for the production of ferrous sulfate.

[0044] 3. Preparation of carbon black and manganese sulfate: put about 600 kg of black powder in the immersion tank, add water to stir, layer, remove the floating matter on the liquid surface, that is, black ...

Embodiment 2

[0054] Embodiment 2: the treatment of nickel-iron batteries, taking a ton of AA batteries as an example.

[0055] 1. Extract Potassium Hydroxide: Break a ton of No. 5 nickel-iron battery, put it in the immersion pool for 4 hours, stir, if it can be heated better, filter, the filter cake contains iron sheet, high nickel oxide, mercury, nickel rod , black powder, manganese powder, wash and set aside. The lotion is added to the filtrate, and the filtrate is concentrated to 56Be or the density is 1.53g / ml to obtain 20-25kg of finished liquid potassium hydroxide.

[0056] 2. produce ammonium nickel sulfate: the filter cake that is obtained is soaked with 90kg dilute ammonia water, and about 100Kg of nickel oxide and nickel hydroxide contained therein are dissolved in ammonia water, filter, add 98% sulfuric acid 245kg in the filtrate, then Evaporate and crystallize to obtain 480 kg of ammonium nickel sulfate; the filter cake is washed and set aside.

[0057] 3. Preparation of ferr...

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PUM

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Abstract

The invention is to process various kinds of waste battery in classifications and uses chemical or physical method to extract zinc salt, chalcanthite, carbon black, manganese bioxide and mercury etc.from zinc-manganese battery, ferrisulphas, potion and nickel sulfate etc. from ferronickel battery, potion, cadmium sulfate and nickel sulfate etc. from cadmium-nickel battery, potion, silver salf and white copperas etc. from silver-zinc battery. Said technology can be used to proces waste battery and make the resource obtd. fully utilization. The advantages are: simple and reasonable processing technology and low cost, no three waste problem, no secondary pollution.

Description

technical field [0001] The invention discloses a waste treatment method, in particular a treatment process for the comprehensive utilization of waste batteries. Background technique [0002] At present, used batteries are treated as wastes together with domestic waste. Most of domestic waste in our country is disposed of by landfill; manufacturers of batteries mainly use crushing and landfill methods for waste batteries. Because the batteries contain heavy metals such as mercury, cadmium, and lead, they have not been effectively and thoroughly treated, causing pollution to soil and groundwater. The battery also contains zinc, copper, iron, manganese, carbon powder, etc. and is also discarded. From the aspect of resource recycling, it is also a great waste. Now many cities across the country are constantly strengthening their awareness of environmental protection, and they also attach great importance to the recycling of used batteries. However, how to deal with the large nu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00H01M6/52H01M10/54
CPCY02E60/12Y02W30/84
Inventor 王宗良张伟锋马宏伟孟庆贤
Owner 王宗良
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