试验采用了煅烧、二次酸浸工艺，进行硫铁尾矿酸浸除铁和铝试验。
The calcination and secondary acid leaching process were used to remove iron and aluminum in the pyrite tailings in the tests.
用硫铁尾矿、硫铁尾矿和石灰、硫铁尾矿和石膏分别与低碱度钢渣复掺配制蒸压制品。
The autoclaved products made of steel slag mixed with pyrite tailing, pyrite tailing and lime or gypsum respectively were studied.
用废弃的硫铁尾矿高岭土制备彩色矿渣微晶玻璃，其关键是降低尾矿高岭土的铁含量。
The key to use pyrite tailings kaolin to product colored microcrystalline glass is to reduce iron content in the tailings kaolin.
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