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“锌热酸浸出——喷淋沉淀除铁”新工艺,它是将含铁浸出液喷洒于Zn~(2+)<1克/升的沉铁槽中,使之按下反应式: Fe~(2+)+2H_2OFeOOH+3H~+ 产出过滤性能好的α—FeooH沉淀,此工艺是不同于黄钾铁矾法,针铁矿法(老山法)的一种新型除铁方法,它具有工艺简单,易于掌握等特点。江苏冶金研究所于1977年开始了该法的研究。1978年以来,该所与浙江温州冶炼厂合作,经过多次小型试验、扩大试验和不断改进,取得了显著效果。
“Zinc hot acid leaching - spray precipitation iron removal” new technology, which is the iron leaching solution sprayed Zn ~ (2 +) <1 g / liter sink of iron, so press the reaction: Fe ~ (2 +) + 2H_2OFeOOH + 3H ~ + output filtration performance α-FeooH precipitation, this process is different from the jarosite method, goethite method (Laoshan method) a new method of removing iron , It has a simple process, easy to grasp and so on. Jiangsu Institute of Metallurgy began its research in 1977. Since 1978, the institute has cooperated with the Wenzhou smelter in Zhejiang Province and achieved remarkable results after many small-scale tests, expansion of tests and continuous improvement.