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怎样最简单提取砷
更新时间: 2020-07-06 00:00:00  

一种真空无污染提取元素砷的方法,其依次包含下列步骤:

(1)、将含砷精矿物料和铁粉装入熔炼室内;

(2)、将熔炼室升温到100℃到300℃后保温,排除物料中的水蒸气和少量灰尘 ;

(3)、在残压小于50Pa的状态下,将熔炼室和结晶室升温到300至500℃后保温,排除物料中挥发的砷的硫化物;

(4)、保持结晶室温度300至500℃,将熔炼室升温到500至600℃后保温,排除物料中分解出的气态元素硫;

(5)

关键词: 怎样 简单 提取

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