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Normal-temperature regeneration method for waste rubber

A waste rubber, normal temperature technology, applied in the field of waste rubber regeneration at room temperature, can solve the problems of waste gas, secondary pollution of the environment, long process time, etc., and achieve the effect of reducing energy consumption and high production efficiency

Inactive Publication Date: 2020-11-13
SANHE GREAT WALL RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned methods can realize the recycling of waste rubber, but they all need to be carried out under a certain temperature and pressure, and some methods take a long time to process, and some methods even produce waste water and waste gas, thereby polluting the environment again

Method used

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  • Normal-temperature regeneration method for waste rubber

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0105] In this preparation example, 20-mesh rubber powder is firstly obtained, and then the rubber powder is firstly refined by a refiner to form a mesh product A. Then, the product A is added to the agitator, and the reducing agent is put in at the same time, and the mixture is mixed at a speed of 500 revolutions per minute. Stirring for 4 minutes afforded Product B. Then, product B was refined 3 times by a refiner to obtain product C, and then product C was put into a kneader, and an initiator was added, kneaded for 8 minutes and discharged to obtain product D. Finally, the product D is refined 4 times through a refiner to obtain the finished reclaimed rubber.

[0106] Wherein, the components of the reducing agent in this preparation example consist of: sodium hydroxide: 1 part; iodine: 3 parts; ferrous chloride: 10 parts; carboxylic acid: 2 parts; zinc naphthenate: 2 parts; Oil: 10 parts; silane coupling agent: 1 part. The composition of the initiator is as follows: merca...

preparation example 2

[0109] In this preparation example, 26-mesh rubber powder is firstly obtained, and then the rubber powder is firstly refined by a refiner to form a mesh product A. Then, the product A is added to the mixer, and the reducing agent is put in at the same time, and the speed is 550 revolutions per minute. Stirring for 4 minutes afforded Product B. Then, product B was refined 3 times by a refiner to obtain product C, and then product C was put into a kneader, and an initiator was added, kneaded for 8 minutes and discharged to obtain product D. Finally, the product D is refined 4 times through a refiner to obtain the finished reclaimed rubber.

[0110] Wherein, the components of the reducing agent in this preparation example consist of: sodium hydroxide: 2 parts; iodine: 2 parts; ferrous chloride: 10 parts; carboxylic acid: 2 parts; zinc naphthenate: 2 parts; Oil: 5 parts. The composition of the initiator is: mercaptobenzothiazole: 1 part; stearic acid: 2 parts; disproportionated ...

preparation example 3

[0113] In this preparation example, 40-mesh rubber powder is firstly obtained, and then the rubber powder is firstly refined by a refiner to form a mesh product A. Then, the product A is added to the agitator, and the reducing agent is put in at the same time, and the mixture is mixed at a speed of 600 rpm. Stirring for 3 minutes gave Product B. Then, product B was refined 3 times by a refiner to obtain product C, and then product C was put into a kneader, and an initiator was added, kneaded for 5 minutes, and then discharged to obtain product D. Finally, the product D is refined three times through a refiner to obtain the finished reclaimed rubber.

[0114] Wherein, the components of the reducing agent in this preparation example consist of: sodium hydroxide: 2 parts; iodine: 1 part; ferrous chloride: 10 parts; carboxylic acid: 2 parts; zinc naphthenate: 2 parts; Oil: 5 parts. The composition of the initiator is as follows: thiol benzothiazole: 1 part; stearic acid: 1 part;...

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Abstract

The invention provides a normal-temperature regeneration method for waste rubber. The method comprises the following steps: crushing waste tires into rubber powder, refining the rubber powder to forma netty product A, adding a reducing agent into the product A, carrying out stirring to form a product B, refining the product B to form a product C, adding an initiator into the product C, carrying out kneading to form a product D, and refining the product D to obtain a reclaimed rubber finished product. According to the normal-temperature regeneration method for waste rubber, the waste rubber can be regenerated at normal temperature, no waste water or waste gas is generated, production efficiency is high, energy is saved, and the environment is protected.

Description

technical field [0001] The invention relates to the technical field of waste rubber regeneration, in particular to a normal-temperature regeneration method for waste rubber. Background technique [0002] In our country, a large number of waste rubber products are treated as waste products and garbage every year, which not only pollutes the environment, but also causes a lot of waste of resources. In recent years, recycling waste rubber products and realizing the recycling of waste rubber products has become the research and development direction of many enterprises. Through the recycling of waste rubber, it can not only solve the problem of environmental pollution, but also maximize the utilization of resources. Therefore, it has also been vigorously advocated by the country. [0003] Existing waste rubber is made into reclaimed rubber, and its regeneration methods include water-oil method, oil method, high-temperature dynamic desulfurization method, screw extrusion desulfu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J11/16C08J11/26C08J11/22C08J11/18C08J11/28C08L19/00
CPCC08J11/16C08J11/26C08J11/22C08J11/18C08J11/28C08J2319/00Y02W30/62
Inventor 王万友
Owner SANHE GREAT WALL RUBBER
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