高品位低活性NMD的活化研究──Ⅰ焙烧条件的热力学分析与实验确定

A STUDY ON THE ACTIVATION OF NMD WITH HIGH MnO_2 CONTENT AND LOW ACTIVITY---Ⅰ The Thermodynamic Analysis and Experimental Determination of Calcination Condition

论文报道了利用高品位低活性的天然二氧化锰（ＮＭＤ）制备锌锰电池用活化天然二氧化锰（ＡＮＭＤ）的研究结果。就制备过程的第一步骤ＮＭＤ焙烧转化ＭｎＯ２成Ｍｎ２Ｏ３的内容，首先从热力学分析焙烧转化的理论条件，然后用确定焙烧转化率的简单分析法研究焙烧温度和焙烧时间两因素对转化率的影响，从而确定将高品位低活性ＮＭＤ转变ＭｎＯ２成Ｍｎ２Ｏ３的焙烧条件。

These series report the results of the preparation of an activate natural manganese dioxide(ANMD) for Zn-MnO2 battery use from natural manganese dioxide (NMD) with high MnO2 content and low activity. The first step for the preparaction of ANMD-NMD calcination for MnO2 conversion to Mn2O3 is studied in this paper. The theoretical condition is analyzed thermodynamically, then the temperature and the time for NMD calcination are determined experimentally.