摘要
通过由氢醌含锰废渣制ＭｎＳＯ＿４工艺，介绍了反中和沉淀法除铁的工艺条件。以的ＭｎＯ＿２作氧化剂，ＮＨ＿３·Ｈ＿２Ｏ作中和剂，控制一定的ｐＨ值和Ｆｅ￣（３＋）浓度，过程中温度为８０～９０℃，反应时间为０．５ｈ，采用反沉淀法可使矿石中的铁变为针状铁。该方法分离效果好，既除去了铁杂质，又得到了针状铁。
Technical conditions in the removal of iron by the reverse neutralizing precipitation are described and which are testified to by the techniquefor the producing MnSO_4 from mangnese-containing mud of hydroquinone.Using MnO_2 as oxidant, NH_3·H_2O as neutralizer,controling value of pH andconcentration of Fe￣(3+) within a certain range,temperature being 80～90℃reaction time,0.5h,iron in the ore is changed into needle crystal by reverseprecipitation,The process is an efficient separation which both removes ironimpurity and obtains needle iron.
出处
《河北化工》
1994年第1期23-24,共2页
Hebei Chemical Industry
关键词
硫酸锰
铁
反中和沉淀
针状铁
分离
mangnese sulfate,iron,reverse neutralizing prccipitation,needle iron, separation
