【摘要】 对目前 EDTA铁铵生产工艺进行了改进 ,使之能更为广泛地应用于农业生产。介绍用 Fe(NO3) 3、NH4 HCO3为原料生产 EDTA铁铵的反应原理、实验流程、步骤、最佳工艺控制条件和取得的重要技术指标 (Fe收率>78% )。用该法生产的 EDTA铁铵产品铁含量高 (>13.5 % ) ,可溶性好 ,易于混配 ,用于高级特种复合肥的混配和包覆实验 ,效果良好更多还原

【Abstract】 The process of ferric ammonium EDTA production is improved for the agricultural application. The reactive mechanism, technological flow, procedure, optimum parameters and main technological indexes (Fe recovery>78%) are described. The final product of ferric ammonium EDTA is obtained with high Fe content (13.5%), good solubility and simple mixture. The experiment shows a positive effect for mixing the specialty compound fertilizer and coating.更多还原