The difference between glycol polyester grade and industrial grade

In the chemical industry, ethylene glycol, as an important raw material, is widely used in the production of a variety of products. Among them, the "polyester grade" and "industrial grade" of ethylene glycol are two common specifications, and there are significant differences in performance, use and production process. This paper will analyze the difference between ethylene glycol polyester grade and industrial grade in detail from the aspects of raw materials, production process and performance characteristics.

1. Raw materials and production process difference

The production raw materials and production processes of glycol polyester grade and industrial grade are different. Ethylene glycol polyester grade usually uses relatively pure ethylene glycol as the main raw material, and the production process pays attention to controlling the reaction conditions to ensure product stability and quality. The production of industrial grade ethylene glycol may use raw materials containing certain impurities and adopt more complex production processes to meet the needs of more industrial applications.

2. Performance characteristics of different

There are significant differences in performance between glycol polyester grade and industrial grade. Glycol polyester grade products usually have high mechanical strength and chemical stability, and are suitable for the production of high value-added products such as plastics. Industrial-grade ethylene glycol, on the other hand, is more processable and cost-effective and is suitable for industrial applications such as the preparation of plastic pellets and solvents.

3. Application areas are different

Glycol polyester grade is mainly used in the production of polyester plastics, such as PVC, polyester fiber, these products have excellent heat resistance and impact resistance, widely used in construction, electronics, textile and other fields. Industrial-grade ethylene glycol is used as a solvent, dehydrating agent and other industrial raw materials, which has stronger economic applicability and is suitable for a wider range of industrial production.

4. Select recommendations

When choosing ethylene glycol, users need to decide whether to use polyester grade or industrial grade according to specific application requirements. If the product quality and performance requirements are higher in the production process, polyester grade is a better choice; and if a large number of industrial materials to reduce costs are required, industrial grade is more suitable.

The difference between glycol polyester grade and industrial grade is mainly reflected in the raw materials, production process, performance characteristics and application scenarios. Understanding these differences can help users choose the right glycol specifications to improve production efficiency and product quality.