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Preparation method of waste and old zinc-manganese battery-biomass adsorbent

A biomass adsorbent, zinc-manganese battery technology, applied in chemical instruments and methods, alkali metal compounds, alkali metal oxides/hydroxides, etc., can solve problems such as consumption of chemical activators

Active Publication Date: 2017-11-24
YANAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation method of waste zinc-manganese battery-biomass adsorbent, which solves the problem of consuming a large amount of chemical activators in the preparation of conventional adsorbents, and realizes the recycling of waste batteries and biomass solid waste and the recycling of waste The problem of the utilization of the whole components of the battery

Method used

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  • Preparation method of waste and old zinc-manganese battery-biomass adsorbent

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preparation example Construction

[0030] The invention provides a preparation method of a waste zinc-manganese battery-biomass adsorbent, and the specific steps are as follows:

[0031] Step 1: Determine the amount of negative electrode material and hydrochloric acid: calculate and generate 2mol / L~3mol / L of ZnCl respectively 2 The required mass of the negative electrode material and the volume of hydrochloric acid of 8 mol / L to 12 mol / L; wherein the negative electrode material is converted according to the mass percentage content of 50% to 60% of the tested Zn;

[0032] Wherein, in the process of weighing the negative electrode material and hydrochloric acid, in order to make the adsorbent prepared by the preparation method of the present invention have better performance, there will be an excess of no more than 5% by mass, but it does not affect the entire preparation process;

[0033] Step 2, Weighing of deionized water, positive electrode material and biomass: Deionized water, positive electrode material an...

Embodiment 1

[0050] Calculate and generate 2mol / L ZnCl respectively 2 The required mass of the negative electrode material and the volume of 8 mol / L hydrochloric acid; the negative electrode material is converted according to the mass percentage content of Zn tested as 50%, and the consumption of the negative electrode material and hydrochloric acid is 20g and 50ml respectively; The mass of the negative electrode material is 2.5:1 to weigh 50 ml of deionized water, the total mass of the positive electrode material and biomass and the sum of deionized water and hydrochloric acid are 1:4 to weigh the positive electrode material and biomass, and the positive electrode material and biomass are weighed. The material and the wood chips are taken according to the mass ratio of 1:4 to take 20g, and the wood chips are pulverized and mixed with the positive electrode material to form a mixed raw material; the obtained negative electrode material is added to a 250ml flask, and 50ml of deionized water ...

Embodiment 2

[0052] Calculate and generate 3mol / L ZnCl respectively 2 The required mass of the negative electrode material and the volume of 12mol / L hydrochloric acid; the negative electrode material is converted according to the mass percentage content of Zn tested as 56%, and the consumption of the negative electrode material and hydrochloric acid is 20g and 50ml respectively; The mass of the negative electrode material is 3:1 to measure 60ml of deionized water, the total mass of the positive electrode material and biomass and the sum of deionized water and hydrochloric acid are 1:4 to weigh the positive electrode material and biomass, and the positive electrode material is weighed. The material and peanut shells are taken according to the mass ratio of 1:5 to take 30g, and the peanut shells are pulverized and mixed with the positive electrode material to form a mixed raw material; the obtained negative electrode material is added to a 250ml flask, and 60ml of deionized water is added for...

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Abstract

The invention discloses a preparation method of a waste and old zinc-manganese battery-biomass adsorbent. A cathode material and hydrochloric acid are respectively weighed according to molar concentration of ZnCl2, and amount of deionized water and mass of a mixed raw material of an anode material and pulverized biomass are determined according to the weighed cathode material and hydrochloric acid; two-stage activation of the mixed raw material is carried out under a certain condition; carbonization is carried out for the products after two-stage activation; carbonized products are repeatedly washed with distilled water till the pH value is neutral, the materials are placed in a baking oven for drying, dried samples are fully milled, in order to prepare the waste and old zinc-manganese battery-biomass adsorbent. The waste and old zinc-manganese battery-biomass adsorbent realizes all-component utilization of waste and old batteries, solves the problem of a large amount of consumption of chemical activators in preparation of conventional adsorbents, and realizes recycling of waste batteries, biomass and other solid wastes.

Description

technical field [0001] The invention belongs to the technical field of adsorbent preparation, and in particular relates to a preparation method of a waste zinc-manganese battery-biomass adsorbent. Background technique [0002] my country is the country with the largest battery production and consumption in the world. According to the statistics of China Battery Enterprise Association in 2014, the production of alkaline zinc-manganese batteries alone reached 12.8 billion. Manganese-enriched zinc-manganese batteries are one of the important sources of used batteries in my country. Traditional waste battery treatment methods, such as pyrometallurgy or hydrometallurgy, have limited promotion and application in my country due to the disadvantages of high cost, secondary pollution, high safety risks and low product value. In 2016, the Ministry of Environmental Protection's newly revised "Technical Policy for Pollution Prevention and Control of Waste Batteries" clearly stated that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30
CPCB01J20/24B01J20/28064B01J2220/4825B01J2220/4875
Inventor 牛志睿张少康成东刘相荣
Owner YANAN UNIV
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