The research tests and production practices of many foreign manufacturers have proven that FRP composite materials can be recycled and reused. However, the recycling of FRP composite waste in my country is still a blank. There is no effective treatment technology, no enterprise or place for recycling waste materials, and no plan to implement waste recycling. According to this patent inventor, Tang Ruiwen and Zhu Qun, after years of careful research, combined with foreign advanced processing technology, domestic equipment and technical practice, established chemical recycling technology as the main body, using original patented pyrolysis equipment and high-efficiency catalytic solid-phase technology, in the absence of oxygen Pyrolysis waste can even be carried out in an ultra-high vacuum environment. The temperature is low, the pyrolysis gas generated is very small, and the pyrolysis oil content is high, which can further obtain more chemical raw materials and achieve effective reuse of resources and economic benefits of recycling. of maximization. This technological invention re-decomposes FRP waste into unsaturated polyester raw materials, glass fibers and fillers. Unsaturated polyester raw materials and glass fiber can be used to re-make FRP, and fillers (mainly talcum powder added when making FRP) can be used as agricultural fertilizers to balance the acidity and alkalinity of the land, and can also be used as raw materials for making composite materials. In this way, the renewable utilization of FRP waste is realized and the pollution to the environment is greatly reduced. At the same time, the present invention adopts vacuum pyrolysis technology combined with catalytic reforming technology, which reduces energy loss, improves the efficiency of pyrolysis and the yield of chemical raw materials. The technology effectively solves the problem of no contact between oil, gas and water, achieving liquefaction at the same time. No waste water is generated, unlike some technologies that use water as a recovery liquid to treat oil and gas to produce secondary pollution, thus improving the comprehensive utilization rate of FRP waste recycling, reducing environmental pollution, thereby reducing capital investment, and providing new opportunities for FRP recycling. Utilization provides a more practical, environmentally friendly and energy-saving technology. This technology has obtained 25 invention patents and is a major breakthrough in the effective recycling technology of FRP waste.
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