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Method for separating scrap metal part from plastic

A technology for metal parts and waste, applied in the field of chemical separation, can solve the problems of difficult separation of plastics, low recycling rate of metal parts, etc., and achieves the effects of good metal recovery performance, favorable for popularization and application, and rapid separation

Inactive Publication Date: 2017-01-04
苏州华美欧菲检测技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned defects in the prior art, the purpose of the present invention is to propose a method for separating waste metal parts and plastics, so as to solve the problems of difficult separation of waste metal parts and plastics, and low recycling rate of metal parts.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Prepare a separation liquid, and mix formic acid and n-butanol at a volume ratio of 4:1 at room temperature to prepare a separation liquid and place it in a container. Put the container containing the separation liquid into a constant temperature oven, set the temperature of the oven at 40°C, and put the scrap metal parts into the container after the temperature of the separation liquid reaches 40°C, so that the scrap metal parts are completely immersed in the separation liquid and keep After 40 minutes, the stirring was stopped, and the metal piece was taken out from the separation liquid with tweezers, and dried at room temperature to recover the metal piece.

Embodiment 2

[0024] Prepare a separation liquid, and mix formic acid and n-butanol at a volume ratio of 4:1 at room temperature to prepare a separation liquid and place it in a container. Put the container containing the separation liquid into a constant temperature box, install a halving rod in the container, set the temperature of the oven at 40°C, and set the stirring speed at 1000rpm. After the temperature of the separation liquid reaches 40°C, put the scrap metal parts Put it into a container, completely immerse the waste metal parts in the separation liquid, keep for 40 minutes, stop stirring, take out the metal parts from the separation liquid with tweezers, and dry them at room temperature to recover the metal parts.

Embodiment 3

[0026] Prepare a separation liquid, and mix formic acid, n-butanol, and xylene at a volume ratio of 4:1:1 at room temperature to prepare a separation liquid and place it in a container. Put the container containing the separation liquid into a constant temperature box, install a halving rod in the container, set the temperature of the oven at 45°C, and set the stirring speed at 1500rpm. After the temperature of the separation liquid reaches 45°C, put the scrap metal parts Put it into a container, completely immerse the waste metal parts in the separation liquid, keep for 30 minutes, stop stirring, take out the metal parts from the separation liquid with tweezers, and dry them at room temperature to recover the metal parts.

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PUM

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Abstract

The invention relates to a method for separating a scrap metal part from plastic. The method comprises the following steps: firstly, mixing formic acid, xylene and normal butanol according to the volume ratio of (2-5):(0-2):(0-2) to prepare a separation solution, then immersing the scrap metal part into the separation solution for 30-60 minutes at a temperature of 35-45 DEG C to separate the plastic adhered onto the scrap metal part, finally taking out the treated metal part from the separation solution and removing the residual separation solution to recycle the metal part. The method provided by the invention has the following advantages that the adopted separation solution has a corrosive effect on the vast majority of plastics and can effectively separate a whole plastic and metal combination, the separation of the scrap metal part from a plastic part is quick, and the recycling rate of the metal part is high. The method provided by the invention is simple and moderate in condition, basically has no impact on the metal properties and has the characteristics of being convenient to operate, low in separation cost, environment-friendly, good in metal recycling performance and conducive to the popularization and application.

Description

technical field [0001] The invention relates to the technical field of chemical separation, in particular to a method for separating waste metal parts and plastics. Background technique [0002] Plastic is mainly composed of carbon, oxygen, hydrogen, nitrogen and other organic or inorganic elements. The finished product is solid, and it is a molten liquid during the manufacturing process. Therefore, it can be heated to melt, pressurized to flow, and cooled to solidify. , and form various shapes, this large and varied material group is called plastic. Plastics are widely used and are indispensable components in home appliances, automobiles, mobile phones, PCs, medical devices, and lighting appliances. As my country's economy has achieved sustained and stable growth, industries such as home appliances, automobiles, mobile phones, PCs, and medical devices have benefited from a favorable external environment and have also achieved rapid development. The development of downstrea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B17/02B09B3/00
CPCB09B3/00B29B17/02Y02W30/62
Inventor 姚春阳
Owner 苏州华美欧菲检测技术服务有限公司