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Method for preparing ultralow-mercury catalyst by recycling waste batteries

A waste battery, ultra-low mercury technology, applied in battery recycling, recycling technology, recycling by waste collectors, etc., can solve problems such as high cost, insufficient utilization, and single metal recycling

Active Publication Date: 2021-07-16
GUIZHOU INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the recycling of waste batteries, there are problems such as single recovery of valuable metals, insufficient utilization rate, and high cost.

Method used

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  • Method for preparing ultralow-mercury catalyst by recycling waste batteries
  • Method for preparing ultralow-mercury catalyst by recycling waste batteries

Examples

Experimental program
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Effect test

Embodiment 1

[0036] A method for recycling waste batteries to prepare ultra-low mercury catalysts, extracting and separating valuable elements from battery powder obtained by dismantling waste batteries, and preparing vinyl chloride to synthesize ultra-low mercury catalysts, comprising the following steps:

[0037] S1, stirring and extracting the battery powder obtained by dismantling the waste battery and dilute hydrochloric acid, and taking the extract;

[0038] S2. After the extract is filtered and separated, analyze the content of mercury, zinc, manganese, copper, cadmium, nickel and cobalt in the extract, and add a regulator by weight to adjust the mercury, zinc, manganese, The ratio of copper, cadmium, nickel and cobalt is 4:2:2:1:1:0.1:0.1, the solution has to be adjusted;

[0039] S3. The adjusted solution is soaked in activated carbon and dried to obtain a catalyst.

[0040] The step s1 is adding battery powder and dilute hydrochloric acid into a stirring tank, adding hydrogen pe...

Embodiment 2

[0043] A method for recycling waste batteries to prepare ultra-low mercury catalysts, extracting and separating valuable elements from battery powder obtained by dismantling waste batteries, and preparing vinyl chloride to synthesize ultra-low mercury catalysts, comprising the following steps:

[0044] S1, stirring and extracting the battery powder obtained by dismantling the waste battery and dilute hydrochloric acid, and taking the extract;

[0045] S2. After the extract is filtered and separated, analyze the content of mercury, zinc, manganese, copper, cadmium, nickel and cobalt in the extract, and add a regulator by weight to adjust the mercury, zinc, manganese, The ratio of copper, cadmium, nickel and cobalt is 4:5:5:3:3:1:1, the solution has to be adjusted;

[0046] S3. The adjusted solution is soaked in activated carbon and dried to obtain a catalyst.

[0047] The aforementioned method of recycling waste batteries to prepare an ultra-low mercury catalyst, the step s1 is ...

Embodiment 3

[0050] A method for recycling waste batteries to prepare ultra-low mercury catalysts, extracting and separating valuable elements from battery powder obtained by dismantling waste batteries, and preparing vinyl chloride to synthesize ultra-low mercury catalysts, comprising the following steps:

[0051] S1, stirring and extracting the battery powder obtained by dismantling the waste battery and dilute hydrochloric acid, and taking the extract;

[0052] S2. After the extract is filtered and separated, analyze the content of mercury, zinc, manganese, copper, cadmium, nickel and cobalt in the extract, and add a regulator by weight to adjust the mercury, zinc, manganese, The ratio of copper, cadmium, nickel and cobalt is 3:6:6:5:5:1:1, the solution has to be adjusted;

[0053] S3. The adjusted solution is soaked in activated carbon and dried to obtain a catalyst.

[0054] The step s1 is adding battery powder and dilute hydrochloric acid into the stirring tank, adding hydrogen pero...

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PUM

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Abstract

The invention discloses a method for preparing an ultralow-mercury catalyst by recycling waste batteries. The method comprises the following steps of: by taking battery powder obtained by disassembling waste batteries as a raw material, performing extraction with diluted hydrochloric acid under an oxidation condition to obtain extract liquor; and adding a regulator according to the weight ratio, adjusting the ratio of main elements including mercury, zinc, manganese, copper, cadmium, nickel and cobalt in the extract liquor to be (3-5): (2-6): (2-6): (1-5): (1-5): (0.1-2): (0.1-2) to obtain an adjusted solution, adding activated carbon, soaking the activated carbon, and drying a product to obtain the ultralow-mercury catalyst for vinyl chloride synthesis catalysis. Valuable metal elements in the waste batteries are separated, the vinyl chloride synthesis catalyst is prepared, and recycling of the waste batteries is achieved.

Description

technical field [0001] The invention relates to a method for preparing an ultra-low mercury catalyst by recycling waste batteries, belonging to the technical field of recycling waste batteries. Background technique [0002] China is the world's largest battery production and consumption country. The output of primary batteries has far surpassed that of the United States and Japan, ranking first in the world; the output of secondary batteries is only behind Japan and South Korea, ranking third in the world. In 2011, my country's battery output reached approximately 37.266 billion, including 34.16 billion primary batteries and secondary batteries (140 million lead-acid batteries and 2.966 billion lithium-ion batteries). With the widespread application and technological update of secondary batteries in industries such as smart phones, digital cameras, and new energy vehicles, waste batteries will inevitably be produced, so the recycling of waste batteries is particularly import...

Claims

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Application Information

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IPC IPC(8): H01M10/54C22B7/00
CPCH01M10/54C22B7/00Y02W30/84
Inventor 郑凯苏晨苏向东曹云超李杰瑞廖军民陈肖虎陈庆
Owner GUIZHOU INST OF TECH
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