聚合三氯化铁(PFC)是一种优质高效的无机高分子絮凝剂，在水处理领域有良好的应用前景，但稳定性较差。
Polyferric chloride (PFC) is a kind of high-efficiency inorganic flocculant and has good prospect in water treatment. But its stability is lower.
以溶液缩聚法，由腰果酚分别与甲醛、正丁醛、糠醛和三氯化铁制备了腰果酚醛铁聚合物。
Cardanol -aldehyde ferric polymers were prepared by condensation polymerization with formaldehyde, n-butyl aldehyde, furfural and iron trichloride.
采用聚合硫酸铁去除液体三氯化铁中的钙离子，钙去除率几乎可达100%，产品质量较高，而且除钙工艺成本低，流程易于控制。
Using polymeric (ferric) sulfate as remover, calcium removal rate is almost 100%. This process has characteristics of lower cost, easily controlled and not influence on the quality of products.
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