磷酸铁工艺路线

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铁法工艺有望成为磷酸铁的主流路线
鑫椤锂电· 2025-09-05 07:46
Core Viewpoint - The article highlights the increasing preference for iron-based phosphate production methods in the market, particularly from the second half of 2024, as opposed to traditional ammonium methods, due to cost advantages and environmental benefits [1][9]. Group 1: Production Methods - There are six main production methods for iron phosphate: ammonium method, sodium method, iron method, iron red method, nickel-iron method, and recycling method, with the ammonium method currently dominating the market [1]. - The iron method involves using zero-valent iron as a source to produce iron phosphate, which is achieved through a series of chemical reactions [3]. Group 2: Cost Advantages - The current oversupply of phosphate has led to low prices, while the supply-demand balance for industrial ammonium and ferrous sulfate remains strong, indicating that the cost advantages of the iron method are likely to persist [4]. - Compared to the iron method, ammonium and sodium methods have longer processes, larger land requirements, higher investment costs per ton of product, and greater environmental management challenges [6]. Group 3: Raw Material Quality - The iron method typically uses high-purity iron sources and purified phosphoric acid, resulting in lower impurity levels, which enhances product quality and stability [7]. Group 4: Market Trends - As of June 2025, global iron phosphate production capacity is projected to reach 5.231 million tons, with only 715,000 tons (13.7%) produced via the iron method. However, new capacity additions from 2025 to 2026 are expected to be predominantly from the iron method, accounting for 760,000 tons (71.7%) [8]. - Companies like Yuntu New Energy are leading in the market, with a focus on external sales, while others like Hunan Youneng and Anda Technology primarily serve internal needs [9].