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Reclaiming agent and method and device for producing reclaimed rubber

A technology of rejuvenating agent and reclaimed rubber, applied in the direction of plastic recycling and recycling technology, can solve the problems of complex process, increased waste gas, environmental pollution, etc., and achieve the effect of wide source of raw materials, shortened desulfurization degree, and environmental protection of the process

Inactive Publication Date: 2011-07-20
霍书光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high temperature and high pressure, after the rubber powder is discharged from the desulfurization tank, a large amount of waste gas and waste water are discharged, causing environmental pollution. Now this production method must increase waste gas and waste water treatment equipment, which requires large investment, high cost and complicated process.

Method used

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  • Reclaiming agent and method and device for producing reclaimed rubber
  • Reclaiming agent and method and device for producing reclaimed rubber

Examples

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Effect test

Embodiment 1

[0034] A method for producing reclaimed rubber, comprising the following steps: crushing waste natural rubber into particles smaller than 5 mm, adding 3 parts of regenerant per 100 parts by weight, mixing to form a primary mixture, and putting it into an open mill Or on the refining machine, carry out thin pass, and become the reclaimed rubber in uniform flake shape. The regeneration agent is composed of the following parts by weight: 50 parts of triethanolamine; 20 parts of ferrous sulfate; 30 parts of zinc oxide; 10 parts of zinc stearate; 50 parts of zinc pentachlorothiophenate;

Embodiment 2

[0036] A method for producing reclaimed rubber, comprising the following steps: crushing waste synthetic rubber into particles smaller than 5 mm, adding 1 part of regenerant per 100 parts by weight, mixing to form a primary mixture, and putting it into an open mill or On the refining machine, carry out thin pass, and become the reclaimed rubber in uniform flake shape. The regeneration agent consists of the following parts by weight:

[0037] 100 parts of triethanolamine;

[0038] 100 parts of ferrous chloride;

[0039] Zinc oxide 50 parts;

[0040] Zinc stearate 30 parts;

[0041] 30 parts of zinc pentachlorothiophenate;

[0042] Split-22 50 parts;

[0043] 30 parts of white carbon black;

[0044] 40 parts of tall oil.

Embodiment 3

[0046] A method for producing regenerated rubber, comprising the following steps: the composite rubber composed of waste natural rubber and waste isoprene rubber is pulverized into particles smaller than 5 mm, wherein the weight ratio of waste natural rubber and waste isoprene rubber in the composite rubber can be 100:1, or 1:100, or 20:80, or 80:20, or 60:40, or 40:60, or 50:50 and other arbitrary weight ratios;

[0047] In terms of parts by weight, add 3 parts of regenerant to every 100 parts of compound glue, mix it to make primary mixture, put it into an open mill or refiner, and carry out thin pass to make a uniform sheet of regenerated rubber. The regeneration agent consists of the following parts by weight:

[0048] 70 parts of triethanolamine;

[0049] Any 60 parts of manganese naphthenate;

[0050] Zinc oxide 40 parts;

[0051] Zinc stearate 20 parts;

[0052] 100 parts of zinc pentachlorothiophenate;

[0053] Split-22 25 parts;

[0054] White carbon black 15 pa...

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PUM

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Abstract

The present invention discloses a reclaiming agent formula, a method for producing reclaimed rubber by utilizing the formula and a pre-reaction mixer cooperating with the method. The invention has the following advantages that: the disclosed reclaiming agent has the advantages of low cost, rich material source and easy production, and can produce high-performance, environment-friendly reclaimed rubber by means of a simple, low-cost production method; the disclosed reclaimed rubber production method has the advantages of little equipment investment, low cost, environment-friendly technique, simplicity, high produced reclaimed rubber quality and the like; the disclosed pre-reaction mixer can increase the desulfuration speed of the interior and exterior of waste rubber, increase the desulfuration degree and shortens the desulfuration time.

Description

Technical field: [0001] The invention belongs to the field of recycling and utilization of waste rubber, and relates to a regeneration agent and a method and equipment for producing regenerated rubber. Background technique: [0002] Now a large number of reclaimed rubber technologies are used in industrial production. The typical process is the water-oil method: use about 28-30 mesh waste rubber powder with regenerant and 10-15% oil (mainly: coal tar, pine tar, heavy oil, tall oil, etc.), and water twice the amount of rubber powder into the desulfurization tank, under the steam pressure of about 200 ℃, heat treatment in the desulfurization tank with dynamic stirring for about 2-4 hours, and then use the roller Reclaimed rubber is made by thin-pass pressing in the refiner. There is a detailed introduction on pages P312-P323 of "Comprehensive Utilization of Waste Rubber Resources" Chemical Industry Press. Due to the high temperature and high pressure, after the rubber powder...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K13/02C08K5/17C08K3/30C08K3/24C08K5/098C08K3/22C08K3/36C08L17/00C08J11/10
CPCY02W30/62
Inventor 霍书光
Owner 霍书光
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