Method for preparing environment-friendly fine butyl renewable rubber

A technology of regenerated rubber and fine butyl, which is applied in recycling technology, plastic recycling, etc., can solve the problems of product application limitations, long desulfurization time, high production cost, etc., and achieve low desulfurization steam pressure, short desulfurization time, and air tightness Good results

Inactive Publication Date: 2011-05-11
FUJIAN HUANKE CHEM RUBBER GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the traditional production process of butyl regenerated rubber, the disadvantages are that in the desulfurization process, expensive softeners need to be added, the desulfurization time is longer, and the production cost is higher; and the obtained ordinary butyl regenerated rubber particles Coarse and has a serious odor, which will not only pollute the environment during the transportation and use of the product, but also cause great restrictions on the application of the product

Method used

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  • Method for preparing environment-friendly fine butyl renewable rubber
  • Method for preparing environment-friendly fine butyl renewable rubber
  • Method for preparing environment-friendly fine butyl renewable rubber

Examples

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Embodiment 1

[0019] A production method of environmentally friendly fine butyl regenerated rubber: use waste butyl rubber inner tubes as raw materials, select them, cut off impurities such as patches and copper nozzles, clean and drain, and then grind and pulverize them with a pulverizer into a particle size of 0.18-0.425mm rubber powder, the temperature of the pulverizer roller is controlled at 80-90°C, and the roller distance is set at 0.25mm; 120 parts by weight of waste butyl rubber inner tube rubber powder, 2.5 parts of paraffin oil, 12 parts of water Put the parts into the microcomputer regeneration desulfurization tank, turn on the mixer to stir the materials in the tank; feed steam, the steam pressure in the tank rises from the initial 0.6Mpa to 1.3-1.5Mpa, and the desulfurization operation is completed after 80 minutes; after the time is up, the desulfurization tank The internal pressure drops to 0Mpa, unloading and rapid cooling; the cooled rubber material is banburyed with a 750 ...

Embodiment 2

[0024] A production method of environmentally friendly fine butyl regenerated rubber: use waste butyl rubber inner tubes as raw materials, select them, cut off impurities such as patches and copper nozzles, clean and drain, and then grind and pulverize them with a pulverizer into a particle size of For 0.18-0.425mm rubber powder, the temperature of the pulverizer roller is controlled at 90-100°C, and the roller distance is set at 0.2mm; 100 parts by weight of waste butyl rubber inner tube rubber powder, 4 parts of paraffin oil, and 10 parts of water Put the parts into the microcomputer regeneration desulfurization tank, turn on the mixer to stir the materials in the tank; feed steam, the steam pressure in the tank rises from the initial 0.6Mpa to 1.5-1.7Mpa, and the desulfurization operation is completed in 75 minutes; after the time is up, the desulfurization tank The internal pressure drops to 0Mpa, unloading and rapid cooling; the cooled rubber material is banburyed with a 7...

Embodiment 3

[0029] A production method of environmentally friendly fine butyl regenerated rubber: use waste butyl rubber inner tubes as raw materials, select them, cut off impurities such as patches and copper nozzles, clean and drain, and then grind and pulverize them with a pulverizer into a particle size of For 0.18-0.425mm rubber powder, the temperature of the pulverizer roller is controlled at 85-95°C, and the roller distance is set at 0.3mm; 140 parts by weight of waste butyl rubber inner tube rubber powder, 1 part of paraffin oil, and 14 parts of water Put the parts into the microcomputer regeneration desulfurization tank, turn on the mixer to stir the materials in the tank; feed steam, the steam pressure in the tank rises from the initial 0.6Mpa to 1.4-1.6Mpa, and the desulfurization operation is completed after 85 minutes; after the time is up, the desulfurization tank The internal pressure drops to 0Mpa, unloading and rapid cooling; the cooled rubber material is banburyed with a ...

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Abstract

The invention relates to a method for preparing environment-friendly fine butyl renewable rubber. The method comprises the following steps: taking butyl rubber inner tube as the raw material, and preparing the butyl renewable rubber after carrying out selection, impurity removing, crushing, desulfuration, banburying, filtering, refining, forming and other procedures. The invention improves desulfuration formula and desulfuration process conditions during the production of the butyl renewable rubber, and also improves the operating methods of the procedures of crushing, refining, filtering andthe like. The obtained environment-friendly fine butyl renewable rubber has small and smooth grains and no odors, and the chemical and physical property indexes of the environment-friendly fine butylrenewable rubber meet the GB / T 13460-2008 requirement.

Description

technical field [0001] The invention relates to the technical field of regeneration of vulcanized rubber, in particular to a production method of environment-friendly fine butyl regenerated rubber. Background technique [0002] With the rapid development of the tire industry, the consumption of butyl rubber has increased rapidly, especially the rapid development of radial tires. The demand for butyl rubber in domestic and foreign markets has become stronger. Due to the limitation of rubber resources, the use of waste butyl rubber to produce recycled rubber received more and more attention. The use of waste butyl rubber to produce butyl recycled rubber is not only beneficial to environmental protection, but also can make rational use of resources. [0003] The production process of using waste butyl rubber as raw material to produce butyl regenerated rubber generally includes the following steps: selection and removal of impurities, crushing, desulfurization, banburying, ref...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J11/20
CPCY02W30/62
Inventor 严国民林文森陈益塘
Owner FUJIAN HUANKE CHEM RUBBER GROUP
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