【摘要】 一种利用硫酸法生产氯化稀土的废渣冶炼稀土合金的工艺。它利用氯化稀土的废渣为原料 ,加入硅铁和氧化钙 ,在 14 0 0℃～ 160 0℃下进行反应。该工艺的优点是稀土资源得到综合利用 ,变废为宝 ,减少污染 ,降低成本 ,从而提高了稀土资源的综合回收率更多还原

【Abstract】 This article is the technology of smelting rare earths alloy of using waste products of producing rare earths chloride by sulphuric acid method.The materials are the waste products of rare earths chloride together with silicon iron and calcium oxide.The reaction is at 1400～1600℃.It is the advantage of this technology that utilizing rare earths resources comprehensively and changing waste products into useful ones and diminishing pollution and decreasing cost.and then increasing the comprehensive utilization of rare earths resources.更多还原