Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Waste aluminum and plastic separating and recycling process

A technology for separating and recycling aluminum and plastic, which is applied in the field of aluminum and plastic materials

Active Publication Date: 2018-01-19
ANHUI TENGYUE ALUMINUM PLASTIC
View PDF12 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Aluminum-plastic composite packaging materials are widely used because of their high strength, impact resistance, antistatic, soft and moisture-proof properties. Aluminum-plastic composite packaging materials are generally coated with a layer of adhesive layer on the surface of polyethylene material and then plated on the surface of the adhesive layer. It is made of aluminum. For environmentally friendly aluminum-plastic composite packaging materials, the bonding layer is easy to dissolve, which can realize the recycling and reuse of waste aluminum-plastic materials, but it is difficult for the bonding layer on the surface of some aluminum-plastic materials. Therefore, it is difficult to directly use the organic solvent separation method to realize the separation and recycling of aluminum-plastic materials

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Waste aluminum and plastic separating and recycling process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A process for separating and recycling waste aluminum and plastic, the specific steps are as follows:

[0022] Step 1: Put the discarded aluminum-plastic composite packaging materials into a crushing and cutting machine and crush them into granules, then put the crushed aluminum-plastic materials into a mixing bucket, put toluene in the mixing bucket until the aluminum-plastic materials are completely submerged, and then After stirring for 8 hours at 500 rpm, the plastic material floating on the surface of the organic solvent and the aluminum foil material deposited at the bottom of the mixing tank were cleaned with water respectively;

[0023] Step 2: The cleaned plastic material is dried and then granulated and reshaped to obtain the finished plastic. The aluminum foil material deposited at the bottom of the mixing tank is dried and put into the reaction vessel for secondary separation;

[0024] Step 3: Add 2mol / L hydrochloric acid solution into the reaction vessel, w...

Embodiment 2

[0029] A process for separating and recycling waste aluminum and plastic, the specific steps are as follows:

[0030] Step 1: Put the discarded aluminum-plastic composite packaging materials into a crushing and cutting machine and crush them into granules, then put the crushed aluminum-plastic materials into a mixing bucket, put acetone in the mixing bucket until the aluminum-plastic materials are completely submerged, and then After stirring for 2 hours at 200 rpm, the plastic material floating on the surface of the organic solvent and the aluminum foil material deposited at the bottom of the mixing tank were cleaned with water respectively;

[0031] Step 2: The cleaned plastic material is dried and then granulated and reshaped to obtain the finished plastic. The aluminum foil material deposited at the bottom of the mixing tank is dried and put into the reaction vessel for secondary separation;

[0032] Step 3: Add 1mol / L hydrochloric acid solution into the reaction vessel, w...

Embodiment 3

[0037] A process for separating and recycling waste aluminum and plastic, the specific steps are as follows:

[0038] Step 1: Put the discarded aluminum-plastic composite packaging materials into a crushing and cutting machine and crush them into granules, then put the crushed aluminum-plastic materials into a mixing bucket, put chloroform in the mixing bucket until the aluminum-plastic materials are completely submerged, After stirring for 6 hours at 300 rpm, the plastic material floating on the surface of the organic solvent and the aluminum foil material deposited at the bottom of the mixing tank were cleaned with water respectively;

[0039] Step 2: The cleaned plastic material is dried and then granulated and reshaped to obtain the finished plastic. The aluminum foil material deposited at the bottom of the mixing tank is dried and put into the reaction vessel for secondary separation;

[0040] Step 3: Add 1.5mol / L hydrochloric acid solution into the reaction vessel, where...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a waste aluminum and plastic separating and recycling process which comprises the specific steps of: inputting a waste aluminum plastic composite packaging material into a crushing cutter to be crushed to particles, then putting the crushed aluminum plastic material in a stirring barrel, putting an organic solvent in the stirring barrel till the aluminum plastic material isfully immersed, stirring the mixture at a rotating speed of 200-500 r / min for 2-8h, and separately washing a plastic material floating on the surface of the organic solvent and an aluminum foil material precipitated in the bottom of the stirring barrel with clean water; pelletting and remolding the cleaned dry plastic material to obtain a finished plastic, and putting the dried aluminum foil material precipitated in the bottom of the stirring barrel in a reaction container for secondary separation; and adding a 1-2mol / L hydrochloric acid solution into the reaction container, stirring the mixture for 2-5h at 30-70 DEG C, filtering and washing the mixture to obtain a filtrate for later use, and pelletting and remolding the filter residues and the plastic material separated in the step 1 together. By combining an organic solvent method and a chemical separating method to achieve separation, the method is thorough in separation and the product is wide in application field.

Description

technical field [0001] The invention belongs to the field of aluminum-plastic materials and relates to a process for separating and recycling waste aluminum-plastic materials. Background technique [0002] Aluminum-plastic composite packaging materials are widely used because of their high strength, impact resistance, antistatic, soft and moisture-proof properties. Aluminum-plastic composite packaging materials are generally coated with a layer of adhesive layer on the surface of polyethylene material and then plated on the surface of the adhesive layer. It is made of aluminum. For environmentally friendly aluminum-plastic composite packaging materials, the bonding layer is easy to dissolve, which can realize the recycling and reuse of waste aluminum-plastic materials, but it is difficult for the bonding layer on the surface of some aluminum-plastic materials. Therefore, it is difficult to directly use the organic solvent separation method to realize the separation and recyc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B29B17/02
CPCY02W30/62
Inventor 张松峰
Owner ANHUI TENGYUE ALUMINUM PLASTIC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com