Current Location： Home > News > Chemical Knowledge > Production and manufacturing method and process of coal tar pitch

[Chemical Knowledge]：Production and manufacturing method and process of coal tar pitch

Read： 368 Time：16months ago Source：Transform the World with Simplicity

The manufacturing method
of coal tar pitch
1. Introduction

coal tar pitch is an important chemical production raw material, widely used in waterproof, anti-corrosion, refractory materials and other fields. With the continuous development of science and technology, the manufacturing method of coal tar pitch has been continuously improved and optimized. This article will introduce a common coal tar pitch manufacturing method.

2. Raw Material Preparation

The main raw material for the manufacture of coal tar pitch is coal tar. Coal tar is a liquid product obtained by high-temperature carbonization of coal, which contains a large number of aromatic compounds. In order to ensure the quality of coal tar pitch, it is necessary to select high-quality coal tar as raw material. Coal tar is distilled

the 3. distillation treatment

to separate components with different boiling points. During the distillation process, it is necessary to control the distillation temperature and pressure according to the composition of the coal tar and the requirements of the target product to obtain a suitable fraction.

of the 4. oxidation treatment

the distillation fraction is subjected to an oxidation treatment to increase its viscosity and stability. The oxidation treatment generally uses air or oxygen as the oxidizing agent, and the reaction is carried out at an appropriate temperature and pressure. The reaction rate and temperature need to be controlled during the oxidation process to avoid over-oxidation or under-oxidation.

5. blending and homogenization

The oxidation treated fraction is blended with other additives to improve the performance and quality of coal tar pitch. In the process of blending, it is necessary to select appropriate additives according to product requirements, and control the addition ratio and blending time. The homogenization treatment is to ensure the uniformity and stability of the product.

6. Quality Inspection and Packaging

After completing the manufacturing process, it is necessary to carry out quality inspection on coal tar pitch, including viscosity, softening point, penetration and other indicators. After the quality inspection is qualified, the packaging is put into storage and the whole manufacturing process is completed.

7. Precautions

1. In the entire manufacturing process, it is necessary to strictly control the process parameters to ensure product quality and safety;
2. It is necessary to maintain and maintain the production equipment regularly to ensure the normal operation and service life of the equipment;
3. For the waste and by-products generated in the production process, it is necessary to carry out reasonable treatment and utilization to avoid environmental pollution.

8. conclusion

coal tar pitch as an important chemical production raw material, its manufacturing method needs to go through a number of process steps, including raw material preparation, distillation treatment, oxidation treatment, reconciliation and homogenization, quality inspection and packaging. In order to ensure product quality and production safety, it is necessary to strictly control the process parameters and regularly maintain and maintain the equipment. At the same time, the waste and by-products produced in the production process also need to be reasonably treated and utilized. By continuously optimizing manufacturing methods and improving production efficiency, the quality and market competitiveness of coal tar pitch can be further improved.

Previous： The production and manufacturing method and process of two-naphthol.

Next： Carbon production and manufacturing methods and processes.

News Categories