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Separation liquid for recovering rubber and application thereof

A technology for recycling rubber and separating liquid, applied in recycling technology, plastic recycling, etc., can solve the problem of no separation method, and achieve the effect of saving resources, convenient and quick operation, and saving labor.

Pending Publication Date: 2020-07-03
江门市恒聚科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially for shoes with rubber soles, the reuse of recycled rubber is of great significance, but there is still no good separation method

Method used

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  • Separation liquid for recovering rubber and application thereof
  • Separation liquid for recovering rubber and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In a 100-liter stainless steel kettle with a heating device, add 30 kilograms of discarded rubber-soled sports shoes, and then add 20 liters of pentaerythritol / 1,3-propanediol (volume ratio of 1:1). Heat the stainless steel kettle to 150 degrees, maintain the temperature for 10 minutes, the sole and upper will fall off automatically, if not fall off, mechanically stir a few times. Then the stainless steel kettle is lowered to room temperature, the upper and the sole are pulled out, and cleaned with water.

Embodiment 2

[0033] In a 100-liter stainless steel kettle with a heating device, add 30 kilograms of discarded rubber-soled sports shoes, and then add 20 liters of polyethylene glycol / diethylene glycol (volume ratio is 1:1). Heat the stainless steel kettle to 150 degrees, maintain the temperature for 10 minutes, the sole and upper will fall off automatically, if not fall off, mechanically stir a few times. Then the stainless steel kettle is lowered to room temperature, the upper and the sole are pulled out, and cleaned with water.

Embodiment 3

[0035] In a 100-liter stainless steel kettle with a heating device, add 30 kilograms of discarded rubber-soled sports shoes, and then add 20 liters of polyethylene glycol / diethylene glycol (volume ratio is 1:1). Heat the stainless steel kettle to 180 degrees, maintain the temperature for 10 minutes, the sole and upper will fall off automatically, if not fall off, mechanically stir a few times. Then the stainless steel kettle is lowered to room temperature, the upper and the sole are pulled out, and cleaned with water.

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Abstract

The invention belongs to the field of waste recovery, and particularly discloses a separation liquid for recovering rubber. The separation liquid at least comprises two hydroxyl-containing compounds,and the number of hydroxyl groups contained in the compound is 2-4. The invention also discloses an application of the separation liquid. The separation liquid is used for separating the rubber sole from the vamp, at least two hydroxyl-containing compounds are adopted, according to the present invention, with the separation liquid containing 2-4 hydroxyl groups, the adhesion performance of the adhesive between the sole and the vamp can be removed under the heating condition, the rubber sole and the vamp can be effectively separated, the scrapped rubber-containing shoes can be subjected to material recycling, a large amount of resources can be saved, and the shoe production cost can be reduced. Meanwhile, the separation method has the advantages of being convenient and fast to operate, lowin cost, environmentally friendly, capable of saving a large amount of labor and the like.

Description

technical field [0001] The invention belongs to the field of waste recycling, in particular to a separation liquid for recycling rubber and its application. Background technique [0002] Shoes have a long history of development. About 5,000 years ago in the Yangshao culture period, the most primitive shoes made of animal skins appeared. Shoes are a tool for people to protect their feet from injury. In order to overcome special conditions and prevent feet from being uncomfortable or injured, people first invented fur shoes. Nowadays, shoes of various styles and functions can be seen everywhere, and everyone has multiple shoes. According to the purpose, there are daily life shoes, labor protection shoes, sports shoes, travel shoes, negative heels, height increasing shoes, rain boots, skateboard shoes, roller skates, dancing shoes, etc. [0003] Shoes usually include a vamp and a sole connected to it. The structure of the sole is complex and diverse. In a narrow sense, it o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J11/06C08L21/00
CPCC08J11/06C08J2321/00Y02W30/62
Inventor 尹标林张哲文
Owner 江门市恒聚科技有限公司