A method and application for preparing a thermally conductive preform by blending industrial by-product oil and waste plastics

A technology of industrial by-products and waste plastics, applied in plastic recycling, chemical instruments and methods, products, etc., can solve the problems of high cost, high requirements for equipment conditions, complicated preparation steps, etc., and achieve convenient production, high applicability, The effect of mature technology

Active Publication Date: 2022-07-05
渤瑞环保股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of carbon material preparation technology has high requirements for raw materials, and there are many pre-processing and core conversion processing steps for high-value resource utilization, high cost, and a serious lack of versatility
[0004] Methods for preparing high-value carbon materials from industrial by-product oil and waste plastics are disclosed in the prior art, such as: a method based on coal / industrial by-product oil hydrogenation co-refining residue doped porous carbon, hydrogenated coal tar pitch-based carbon fiber The preparation method of waste plastics, the method of preparing carbon nanotubes by catalytic pyrolysis of waste plastics, etc., all of these methods have problems such as complicated preparation steps, high requirements for equipment conditions, and the need to introduce other auxiliary chemical substances, which limit the use of industrial by-product oil and waste plastics. High-value resource utilization of carbonaceous materials

Method used

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  • A method and application for preparing a thermally conductive preform by blending industrial by-product oil and waste plastics
  • A method and application for preparing a thermally conductive preform by blending industrial by-product oil and waste plastics
  • A method and application for preparing a thermally conductive preform by blending industrial by-product oil and waste plastics

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Pulverize the thermosetting waste plastics, sieve the particles with the required mesh number of 60 meshes with a standard sieve, and then fully stir and mix them with the catalytic cracking oil slurry. The mixing ratio of the thermosetting waste plastics and industrial by-product oil is 1:1. Get 500g mixture, put it in the still, set the heating rate of the reaction still to be 1 ℃ / min, fill with inert gas, start vacuum distillation after emptying, the distillation cut fraction temperature is 450 ℃, and the temperature in the still is 350 ℃. °C. After the distillation, take out the distillation residue pitch, put it into the carbonization furnace, and set up a three-stage heating program: 1. In an inert atmosphere, the temperature is raised from room temperature to 500 °C, the heating rate is 10 °C / min, the stay is 5h, and the temperature is naturally cooled to room temperature. 2. In an air atmosphere, the temperature is raised from room temperature to 310°C, the heat...

Embodiment 2

[0048] Pulverize the thermosetting waste plastics, sieve the particles with the required mesh number of 100 meshes with a standard sieve, and then fully stir and mix them with coal tar. The mixing ratio of thermosetting waste plastics and industrial by-product oil is 1:3. Get 500g mixture, put it in the still, set the heating rate of the reactor to be 5 ℃ / min, fill with inert gas, start underpressure distillation after emptying, the distillation cut fraction temperature is 500 ℃, and the temperature in the still is 300 ℃. °C. After the distillation is over, take out the distillation residue pitch, put it into the carbonization furnace, and set up a three-stage heating program: 1. In an inert atmosphere, the temperature is raised from room temperature to 450 °C, the heating rate is 8 °C / min, the stay is 5h, and the temperature is naturally cooled to room temperature. 2. The temperature is raised from room temperature to 280°C in an air atmosphere, the heating rate is 1°C / min, t...

Embodiment 3

[0050] Pulverize the thermosetting waste plastics, sieve the particles with the required mesh number of 80 meshes with a standard sieve, and then fully stir and mix them with the pharmaceutical residues. The mixing ratio of the thermosetting waste plastics and industrial by-product oil is 1:2. Get 500g mixture, put it in the still, set the heating rate of the reaction still to be 1 ℃ / min, fill with inert gas, start vacuum distillation after emptying, the distillation cut fraction temperature is 450 ℃, and the temperature in the still is 350 ℃. °C. After the distillation is over, take out the distillation residue pitch, put it into the carbonization furnace, and set a three-stage heating program: 1. In an inert atmosphere, the temperature is raised from room temperature to 480 °C, the heating rate is 5 °C / min, and the temperature is kept for 6h, and naturally cooled to room temperature. 2. The temperature is raised from room temperature to 350°C in an air atmosphere, the heatin...

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Abstract

The invention belongs to the technical field of industrial low-value by-product / waste resource utilization, and in particular relates to a method and application for preparing a thermally conductive preform by blending industrial by-product oil-waste plastics. The method specifically includes: (1) pretreating the thermosetting waste plastic, and then fully stirring and mixing it with the industrial by-product oil; (2) subjecting the mixture to vacuum distillation, and after the distillation is completed, taking out the distillation residue pitch; (3) The residual pitch is heated and carbonized to form a pore structure; (4) the porous structure is stabilized by oxidation in the air, and then further graphitized to obtain a porous thermally conductive preform with a significant pore structure. This method is not only expected to solve the problem of high-value and effective green utilization of various industrial by-product oils, but also provides an effective solution for solving the severe environmental protection problems caused by the extensive accumulation and retention of plastic waste on the surface and the ocean, and realizes industrial by-products. Synergistic and comprehensive utilization of oil and thermosetting waste plastics.

Description

technical field [0001] The invention belongs to the technical field of industrial low-value by-product / waste resource utilization, and particularly relates to a method and application for preparing a thermally conductive preform by blending industrial by-product oil and waste plastics. Background technique [0002] The information disclosed in this Background section is only for enhancement of understanding of the general background of the invention and should not necessarily be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art. [0003] While the modern chemical industry provides convenient industrial products for human society, it also produces a large number of by-products, such as catalytic cracking slurry from petrochemical by-products, coal tar from coal-coking chemical by-products, tail oil from pharmaceutical and chemical by-products and The waste lubricating oil rege...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/14C01B32/205
CPCC09K5/14C01B32/205Y02W30/62
Inventor 王坤胤杨聪陈坤徐航蒋继增刘贺郭爱军
Owner 渤瑞环保股份有限公司
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