A method for producing reclaimed rubber by low-temperature desulfurization

A technology of reclaimed rubber and low temperature, applied in the field of low-temperature desulfurization to produce reclaimed rubber, can solve problems such as reducing production costs, and achieve the effects of reducing energy consumption, low regeneration temperature, and reducing pollution

Active Publication Date: 2016-11-02
REBORN ENVIRONMENTAL EQUIP MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

thereby reducing production costs

Method used

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  • A method for producing reclaimed rubber by low-temperature desulfurization

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Mix 100 parts of 100-mesh ordinary rubber powder, 0.5 parts of regeneration active agent S-benzyl O-ethyl xanthate, 10 parts of environmentally friendly aromatic oil, stir with a high-speed mixer for 20 minutes, park for 24 hours, and pass it on the open mixer. After 30 minutes, carry out desulfurization regeneration, the roll temperature is 40°C, and the roll distance is 0.2-0.5mm.

Embodiment 2

[0019] Mix 100 parts of 20-mesh tread rubber powder, 1.0 parts of regenerative active agent S-benzyl O-ethyl xanthate, 10 parts of environmentally friendly aromatic oil, 10 parts of castor oil, stir with a high-speed mixer for 20 minutes, and park for 24 hours Thin pass on the open mill for 20 minutes to carry out desulfurization and regeneration, the roll temperature is 85°C, and the roll distance is 0.2-0.5mm.

Embodiment 3

[0021] Mix 100 parts of 80-mesh tread rubber powder, 0.2 parts of regenerative active agent S-benzyl O-ethyl xanthate, 15 parts of cottonseed oil, stir with a high-speed mixer for 20 minutes, and then pass it on the open mill after 24 hours of parking. After 20 minutes, carry out desulfurization and regeneration, the roll temperature is 70°C, and the roll distance is 0.2-0.5mm.

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Abstract

The invention discloses a low-temperature desulfurization reclaimed rubber production method and belongs to the technical field of reclaimed rubber production. According to the low-temperature desulfurization reclaimed rubber production method, the raw materials comprises, by weight part, 100 parts of waste rubber powder, 0.2-2 parts of reclaiming active agent and 10-18 parts of swelling agent. Specifically, the method comprises uniformly mixing the waste rubber powder, the reclaiming active agent and the swelling agent in proportion; at 35-85 DEG C, performing desulfurization for 10-60 minutes through rubber desulfurization equipment to obtain reclaimed rubber. The low-temperature desulfurization reclaimed rubber production method has the advantages of being simple in preparation, low in production temperature and energy consumption, free from discharge, energy-saving and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of reclaimed rubber production, in particular to a method for producing reclaimed rubber through low-temperature desulfurization. Background technique [0002] Reclaimed rubber is the most important way to reuse waste rubber. It uses waste rubber products as raw materials, and after crushing, desulfurization and refining processes, it produces a rubber material with a certain degree of plasticity and can be reused. The so-called "desulfurization" is the process of chemically and physically processing the waste rubber to partially degrade the elastic vulcanizate, destroy the molecular network structure, reduce its elasticity and restore its plasticity and fluidity. At present, my country mainly adopts high-temperature dynamic desulfurization process and high-temperature continuous process to produce reclaimed rubber, and desulfurization tank and high-temperature screw machine are the main production equipmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L21/00C08L91/00C08K5/38
Inventor 丛后罗孙鹏朱信明王艳秋徐云慧翁国文周洪
Owner REBORN ENVIRONMENTAL EQUIP MFG CO LTD
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