摘要
采用添加晶种控制结晶沉淀的方法来制备碳酸锰,考察了温度、碳酸氢铵浓度、晶种用量以及反应物滴加时间等条件对产物碳酸锰振实密度的影响规律。结果表明,当反应温度为30℃,晶种加入量为20%,碳酸氢铵浓度为2 mol/L,反应物滴加时间为4.5 h时,制备出振实密度可达2.3 g/cm3、纯度高的重质碳酸锰,且实验的重复性好。
Manganese carbonate was prepared by controlled crystallization method with seeding material. The effect of reaction temperature, ammonium bicarbonate concentration, crystal seeds and the dropping time of reactants on the tap density of manganese carbonate was investigated. The optimal preparation conditions are as follows：the reaction temperature is 30℃, seed crystal consumption is 20%, the concentration of ammonium bicarbonate is 2 mol/L,the dropping time of reactants is 4.5 h ,the tap density of man- ganese carbonate prepared under these conditions reaches 2.3 g/cm3. The manganese carbonate has a high purity and the preparation method has good reproducibility.
出处
《应用化工》
CAS
CSCD
2013年第11期2039-2041,共3页
Applied Chemical Industry
关键词
碳酸锰
温度
滴加时间
振实密度
晶种
manganese carbonate
temperature
dropping time
tap density
crystal seed
作者简介
作者简介：赵俊海（1988-），男，河南郑州人，吉首大学在读硕士研究生，师从吴显明教授，从事应用电化学及功能材料方面的研究。电话：15200791424，E—mail：706448920@qq．com
通讯联系人：吴显明，教授，博士。E-mail：xianmingwu@163．com
