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Circuit board pyrolysis product briquette and preparation method thereof

A technology for pyrolysis products and circuit boards, applied in electric furnaces, crucible furnaces, rotary drum furnaces, etc., can solve problems such as weak compressive strength, achieve high compressive strength, and meet the needs of recycling processes

Active Publication Date: 2017-06-13
JIANGXI GREEN ECO MFG RESOURCE CYCLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the main purpose of the present invention is to provide a circuit board pyrolysis product briquette, which solves the problem of weak compressive strength after the materials are mixed and pressed in the prior art; another purpose of the present invention is to provide a circuit board Preparation method of plate pyrolysis product briquettes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Step 1. Weigh the following components by weight percentage: 40% of pyrolysis product, 5% of shale, 30% of electroplating copper-containing sludge, 15% of bentonite, 5% of flue ash, and 5% of water;

[0031] Among them, the weight percentage of each component in the pyrolysis product is: copper 25%, iron 10%, aluminum 12%, carbon powder 12%, glass fiber 8%, and the rest are metal or non-metal impurities;

[0032] Shale is composed of the following components by weight percentage: 6% calcium, 2.5% iron, 20% silicon, 1.5% aluminum, and the rest are metal or non-metal impurities;

[0033] The percentage by weight of each component in the electroplating copper-containing sludge is: copper 10%, water 50%, and the rest are metal or non-metallic impurities;

[0034] Bentonite is composed of the following components by weight percentage: SiO 2 50%, Al 2 o 3 20%, Fe 2 o 3 3%, MgO7%, CaO2%, H 2 O18%;

[0035] The flue dust is composed of the following components by weight ...

Embodiment 2

[0039] Step 1. Weigh the following components by weight percentage: 40% of pyrolysis product, 5% of shale, 30% of electroplating copper-containing sludge, 15% of bentonite, 5% of flue ash, and 5% of water;

[0040] Among them, the weight percent of each component in the pyrolysis product is: copper 30%, iron 15%, aluminum 10%, carbon powder 15%, glass fiber 8%, and the rest are metal or non-metal impurities;

[0041] Shale is composed of the following components by weight percentage: 7% calcium, 3% iron, 20% silicon, 1% aluminum, and the rest are metal or non-metal impurities;

[0042] The weight percent of each component in the electroplating copper-containing sludge is: copper 15%, water 60%, and the rest are metal or non-metal impurities;

[0043] Bentonite is composed of the following components by weight percentage: SiO 2 56%, Al 2 o 3 22%, Fe 2 o 3 0%, MgO4%, CaO2%, H 2 O16%;

[0044] The flue dust is composed of the following components by weight percentage: 15% ...

Embodiment 3

[0048] Step 1. Weigh the following components by weight percentage: pyrolysis product 35%, shale 10%, electroplating copper-containing sludge 35%, bentonite 10%, flue ash 5%, water 5%;

[0049] Among them, the weight percentage of each component in the pyrolysis product is: copper 25%, iron 10%, aluminum 12%, carbon powder 12%, glass fiber 8%, and the rest are metal or non-metal impurities;

[0050] Shale is composed of the following components by weight percentage: 6% calcium, 2.5% iron, 20% silicon, 1.5% aluminum, and the rest are metal or non-metal impurities;

[0051] The weight percent of each component in the electroplating copper-containing sludge is: copper 10%, water 50%, and the rest are metal or non-metal impurities;

[0052] Bentonite is composed of the following components by weight percentage: SiO 2 50%, Al 2 o 3 20%, Fe 2 o 3 3%, MgO7%, CaO2%, H 2 O18%;

[0053] The flue dust is composed of the following components by weight percentage: 10% copper, 1% tin, ...

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PUM

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Abstract

The invention discloses a circuit board pyrolysis product briquette. The circuit board pyrolysis product briquette consists of the following components in percentage by weight: 20-40% of pyrolysis products, 5-15% of shale, 20-40% of electroplating copper-contained sludge, 10-20% of bentonite, 5-10% of flue dust, and 5-10% of water. The invention further discloses a preparation method of the circuit board pyrolysis product briquette. The briquette formed by pressing the components is higher in compressive strength, and can satisfy the recovery process demands.

Description

technical field [0001] The invention belongs to the technical field of recycling pyrolysis products of circuit boards, and in particular relates to a briquette of pyrolysis products of circuit boards and a preparation method thereof. Background technique [0002] The pyrolysis product of the circuit board is a mixture of carbon powder, glass fiber, copper, iron, aluminum and capacitors obtained after the circuit board has been detinned, crushed and pyrolyzed, with a particle size of 0-2 cm. The pyrolysis product of the circuit board is used to recover precious metals such as copper, gold, silver and palladium through the pyro-copper smelting process, and the copper smelting equipment adopts a copper airtight blast furnace. According to the process requirements, the pyrolysis product of the circuit board needs to be pressed into a cuboid or cube block with a certain strength. The glass fiber in the pyrolysis product of the circuit board is a flake, and the carbon powder and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B15/00C22B1/248
CPCC22B1/248C22B15/0006
Inventor 许开华鲁习金黄冬波
Owner JIANGXI GREEN ECO MFG RESOURCE CYCLE
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