The first polyphenylene sulfide production line in Gansu Province was completed

Drying equipment

The polyphenylene sulfide production line with a total investment of about 400 million yuan was recently completed in the first phase of the Dunhuang Industrial Park in Gansu Province. This is the first polyphenylene sulfide production line in Gansu Province.

The Dunhuang Xiyu Special New Material Co., Ltd., which has built this production line, has 10.54,274 square kilometers of Dunhuang West Lake 10 million mirabilite reserves, and has successfully built basic products such as Glauber's salt, Yuan Ming powder, sodium sulfide, and polyphenylene sulfide. To paint, fiber, injection molding and other multi-level products of circular economy industrial chain. Based on their own resources and technological advantages, they began to implement three technical topics, namely the research on mining process technology of mirabilite tailings resources, the research on the utilization of waste heat from the use of sodium sulfide roasting tail gas, and the synthesis of polyphenylene sulfide synthesis technology. The achievements were confirmed to reach the domestic level. Leading level. The polyphenylene sulfide project currently under construction uses a number of national invention patents and independent scientific and technological achievements.

According to reports, polyphenylene sulfide (PPS) is widely used in environmental protection, automobiles, and electronics due to its characteristics of high temperature resistance, radiation resistance, corrosion resistance, abrasion resistance, flame retardance, high modulus, high dimensional stability, and excellent electrical properties. In the petrochemical, pharmaceutical, and other industries, their production technologies and products have long been dominated by a few countries. In addition, involving the military industry, China’s imports of this product are limited. In recent years, as China has become Asia's largest consumer of plastics, the demand gap for polyphenylene sulfide has increased and polyphenylene sulfide has subsequently been listed as a key development project for the country during the 12th Five-Year Plan period.

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