有必要探索由工业废铁粉经固相反应直接制取固体聚合硫酸铁的工艺。
It is necessary to research a new method of SPFS preparation by solid reaction process with industrial scrap iron powder.
介绍了以废铁渣为主要原料与工业硫酸反应制备三氧化二铁，产生的废液加氧化钙生成副产物硫酸钙的工艺。
The preparation method utilizes industrial sulfuric acid to leach waste iron residue in oxygen and at normal pressure under reasonable production process and operation conditions.
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