变固废为璞玉，磷石膏铺就绿色生态之路

Core Viewpoint - Phosphogypsum, a byproduct of phosphoric acid production, poses significant environmental challenges due to its high accumulation and low utilization rate, while companies like Changyao New Materials are innovating to convert this waste into valuable resources through advanced technologies [1][2][4][5]. Group 1: Industry Overview - Phosphorus, ranked 15th in the periodic table, is essential for life and modern industry, used in fertilizers, lithium batteries, flame retardants, and construction materials [1]. - The global stockpile of phosphogypsum has reached 6 billion tons, with an annual increase of approximately 15 million tons, and China's stockpile is 870 million tons, growing at about 8 million tons per year [2][3][4]. - Phosphogypsum is produced at a rate of 4 to 5 tons for every ton of phosphate fertilizer, leading to significant environmental burdens [1][3]. Group 2: Company Profile - Changyao New Materials, located in Yichang, Hubei, is recognized as a key player in the industry, supplying high-quality electric poles and developing innovative technologies for phosphogypsum utilization [1][5][6]. - The company has transitioned from a state-owned enterprise focused on electric poles to a leader in solid waste resource utilization, producing over 100 types of products across various sectors [15][16]. - Changyao New Materials has developed a new method for treating phosphogypsum, achieving a high utilization rate and creating eco-friendly construction materials [10][11]. Group 3: Technological Innovations - The company has pioneered a novel non-harmful treatment technology that neutralizes harmful components in phosphogypsum, allowing for its use in construction materials with over 80% phosphogypsum content [10][12]. - Changyao's innovations include the development of high-performance water-hardening cementitious materials and lightweight aggregates, which can replace traditional materials in construction [11][12][17]. - The company has established partnerships with top universities and research institutions to enhance its technological capabilities and has been recognized for its contributions to the industry [16][17]. Group 4: Environmental Impact and Future Goals - Changyao New Materials aims to address the environmental challenges posed by phosphogypsum by promoting its resource utilization, contributing to sustainable development in the chemical and construction industries [17]. - The company has successfully applied its materials in numerous infrastructure projects, demonstrating their effectiveness and gaining recognition from national authorities [13][17]. - The long-term vision includes fostering industry-wide collaboration to tackle the phosphogypsum issue, ensuring a sustainable future for the environment and the community [15][16].