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Treatment process for producing carbon black from waste tire

A waste tire and treatment process technology, which is applied in the field of waste tire production carbon black treatment process, can solve the problems of high pollution level and poor rubber compatibility, and achieve the effects of increasing added value, enhancing compatibility and increasing economic benefits

Inactive Publication Date: 2019-03-22
蔡国政
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high carbon content of waste tires, some researchers have prepared activated carbon and carbon black products from waste tires. The usual way to prepare carbon black products from waste tires is to pyrolyze waste tires and then pyrolyze them. The processed residues are used as carbon black products; however, such carbon black products have a high degree of environmental pollution and poor compatibility with rubber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] It includes the following steps:

[0025] S1: The scrap tires from which the iron wire is removed are crushed to obtain scrap tires;

[0026] S2: Pass the waste tire residue through the screening machine and enter the grinder for full grinding; after grinding, enter the activator for activation;

[0027] S3: Add organic solvent, desulfurizing agent, sulfuric acid to the activator, and react at 60 degrees Celsius for 30 minutes; the organic solvent includes a mixed solvent of ethanol, ethanolamine and benzene; the desulfurizing agent in S3 is zinc chloride, chlorine A mixture of one or more of iron and aluminum chloride; the mass ratio of desulfurizer to waste tire slag is 5:17;

[0028] S4: Carbon black is made from the activated waste tire residue by catalytic cracking method;

[0029] S5: After the carbon black is dried, an alkaline agent is added. The reaction temperature is 60 degrees Celsius and the reaction time is 1-2h; then the neutralization is performed. After the neut...

Embodiment 2

[0034] It includes the following steps:

[0035] S1: The scrap tires from which the iron wire is removed are crushed to obtain scrap tires;

[0036] S2: Pass the waste tire residue through the screening machine and enter the grinder for full grinding; after grinding, enter the activator for activation;

[0037] S3: Add organic solvent, desulfurizer, and sulfuric acid to the activator, and react at 65 degrees Celsius for 30 minutes; the organic solvent is a mixture of hexane, cyclohexane, and xylene; the desulfurizer is zinc chloride, A mixture of one or more of ferric chloride and aluminum chloride; the mass ratio of desulfurizer to waste tire slag is 5:18;

[0038] S4: Carbon black is made from the activated waste tire residue by catalytic cracking method;

[0039] S5: After the carbon black is dried, an alkaline agent is added, the reaction temperature is 80 degrees Celsius, and the reaction time is 1-2h; then the neutralization is carried out. After the neutralization, concentrated ...

Embodiment 3

[0044] It includes the following steps:

[0045] S1: The scrap tires from which the iron wire is removed are crushed to obtain scrap tires;

[0046] S2: Pass the waste tire residue through the screening machine and enter the grinder for full grinding; after grinding, enter the activator for activation;

[0047] S3: Add organic solvent, desulfurizer, and sulfuric acid to the activator, and react at 70 degrees Celsius for 30 minutes; the organic solvent is a mixture of benzene and toluene; the desulfurizer is zinc chloride, ferric chloride, and chlorinated A mixture of one or more of aluminum; the mass ratio of desulfurizer to waste tire slag is 5:21;

[0048] S4: Carbon black is made from the activated waste tire residue by catalytic cracking method;

[0049] S5: After the carbon black is dried, an alkaline agent is added, the reaction temperature is 68 degrees Celsius, and the reaction time is 1-2h; then the neutralization is carried out. After the neutralization, concentrated sulfuric...

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Abstract

The invention relates to the technical field of resource regeneration and utilization and in particular relates to a treatment process for producing carbon black from waste tires. The treatment process comprises the following steps: collecting waste tire dregs, and activating the waste tire dregs; putting an organic solvent, a desulfurizing agent and sulfuric acid into an activator, controlling the temperature to 60-80 DEG C, and carrying out a reaction for 30 minutes; preparing carbon black from the activated waste tire dregs by using a catalytic cracking method; drying the prepared carbon black, and adding an alkali agent; carrying out neutralization, drying, and adding concentrated sulfuric acid; oxidizing the carbon black, and further bonding isocyanate with hydroxyl on the surface ofthe carbon black; mixing the carbon black with water in a pre-mixing machine, pelletizing, and drying in a drying furnace, thereby obtaining a finished product. By adopting the treatment process, crushing, graded screening, surface modification and pelletizing on primary carbon black can be implemented, the compatibility of the carbon black with rubber is improved, property indexes of industrial carbon black are met, the additional value of pyrolysis carbon black is increased, and the economical benefits of companies are greatly increased.

Description

(1) Technical field [0001] The invention relates to the technical field of resource regeneration and utilization, in particular to a process for treating carbon black produced by waste tires. (2) Background technology [0002] As we all know, waste rubber is the second largest waste polymer material in the world except waste plastic, and it mainly comes from waste tires. The large accumulation of waste tires will not only cause waste of resources and breed mosquitoes, but also easily cause fires, which are difficult to extinguish. Because waste rubber is a thermosetting polymer material, it has high toughness and elasticity, it is difficult to degrade, and the recycling process is extremely complicated and the cost is high. Therefore, gradual advancement or improvement of waste tire disposal methods and maximum recycling of waste rubber resources can not only help solve the problem of domestic resource scarcity, but also have great significance for the development of circular ec...

Claims

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Application Information

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IPC IPC(8): C09C1/54C09C1/56C09C3/06C09C3/08
CPCC09C1/54C09C1/565C09C3/006C09C3/06C09C3/08
Inventor 蔡国政
Owner 蔡国政
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