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Method and system for preparing regenerative carbon black by deashing and modifying pyrolytic carbon of waste rubber and plastic products

A technology for plastic products and regenerated carbon black, which is applied in fibrous fillers, dyed low-molecular organic compound treatment, dyed organic silicon compound treatment, etc., can solve the problems of unresolved pyrolysis carbon ash content, poor reaction effect, etc., and achieve Effects of recycling and avoiding environmental pollution

Active Publication Date: 2014-01-29
联智同达(苏州)环境科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent uses grinding equipment to fully contact and react organic compounds with the surface of pyrolytic carbon, but its disadvantage is that the reaction effect is not good, and the problem of high ash content in pyrolytic carbon is not solved

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  • Method and system for preparing regenerative carbon black by deashing and modifying pyrolytic carbon of waste rubber and plastic products
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  • Method and system for preparing regenerative carbon black by deashing and modifying pyrolytic carbon of waste rubber and plastic products

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Embodiment Construction

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0034] combine figure 1 , figure 2 As described, the method for producing regenerated carbon black by pyrolysis of waste rubber and plastic products according to the present invention for deashing and modifying comprises the following steps:

[0035] S1, waste rubber and plastic products are produced by pyrolysis process to produce pyrolytic charcoal, oil and combustible gas.

[0036] S2, the pyrolytic carbon is pulverized to a fineness below 325 mesh (particle size <45 μm).

[0037] S3, pyrolytic carbon reacts with acid A to convert part of the ash into soluble salts, which are then removed by washing and filtration.

[0038] Specifically, the reaction process of pyrolytic charcoal and acid A includes: adding acid A to pyrolytic charcoal, stirring and mixing evenly, and heating p...

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Abstract

The invention discloses a method and a system for preparing regenerative carbon black by deashing and modifying pyrolytic carbon of waste rubber and plastic products. The method comprises the following steps: preparing the pyrolytic carbon from the waste rubber and plastic products through a pyrolytic process, and crushing the pyrolytic carbon; respectively carrying out two different acid reactions and one alkali reaction on the pyrolytic carbon to convert the vast majority of ash in the pyrolytic carbon into soluble salts; washing the pyrolytic carbon through water, and filtering to remove the soluble salts; reacting the deashed pyrolytic carbon with a modifier to change the micro chemical environment on the surface of the pyrolytic carbon to form a new combined layer and strength the binding force between the pyrolytic carbon particles and the rubber and the plastic so as to prepare the regenerative carbon black, and by means of the treatment, the ash content in the pyrolytic carbon is greatly decreased, and the waste rubber and plastic products are recycled. Meanwhile, the invention also discloses a system for preparing regenerative carbon black by deashing and modifying pyrolytic carbon of waste rubber and plastic products, and heat needed in the reaction process of the system is obtained from combustible gases generated by pyrolysis of the waste rubber and plastic products, so that cyclic utilization of energy source is realized.

Description

technical field [0001] The present invention relates to a method and system for producing regenerated carbon black by pyrolytic carbon ash removal and modification of waste rubber and plastic products, in particular to a pyrolytic carbon with a high proportion of deep ash removal and surface modification to improve the reinforcing effect of pyrolytic carbon A method and system for producing recycled carbon black through ash removal modification. Background technique [0002] With the accelerated development of the rubber and plastic industries, a large number of waste rubber and plastic products appear in the world. These rubber and plastic products usually contain high molecular polymers, carbon black and some ash. Ash contains zinc, calcium, silicon, aluminum, sodium, iron, magnesium, potassium, sulfur, phosphorus and other elements. [0003] With the advancement of technology, pyrolysis technology can convert waste rubber and plastics into charcoal, oil and combustible g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/44C09C1/56C09C3/12C09C3/08
Inventor 王兢
Owner 联智同达(苏州)环境科技有限公司
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