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Procedure for obtaining scorodite with a high arsenic content from acidic solutions with high content of sulfuric acid

机译:从具有高含量硫酸的酸性溶液中获得臭臭含量的臭臭含量的步骤

摘要

The present invention provides a process that allows the oxidation of trivalent arsenic and ferrous ion, simultaneous with neutralization of the acid solution to be treated, the precipitation of arsenic and oxidized ferric iron added in a molar ratio Fe:As determined at a defined pH, all of the above with a high efficiency of precipitation of arsenic as ferric arsenate or scorodite, obtaining a final residue stable in the long term, characterized by their higher content of arsenic in a lower volume compared with the procedures described in the state of the prior art.
机译:本发明提供一种方法,其允许氧化三价砷和亚铁离子的氧化,同时用待处理的酸溶液,砷和氧化铁铁的沉淀在摩尔比Fe中添加:如确定的pH值, 以上所有砷都沉淀为砷作为铁砷酸酯或焦散,长期获得最终残留物稳定,其特征在于与先前状态描述的程序相比,其在较低的体积中的砷含量较高。 艺术。

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