1) low grade rhodochrosite
低品位菱锰矿
1.
This paper describes the Mn production and puts forward a new method to mine low grade rhodochrosite using solving and soaking.
概述了锰矿的生产现状 ,提出了原地溶浸开采低品位菱锰矿新方法 ,给出了菱锰矿溶浸实验结
2) low-grade manganese ore
低品位锰矿
1.
Lab-scale simultaneous acid pressure leaching of sphalerite concentrate and silver-bearing low-grade manganese ore was performed under various conditions to investigate leaching variables,such as leaching temperature,leaching duration,oxygen partial pressure and stirring rate.
进行了硫化锌和含银低品位锰矿联合氧压酸浸的小型试验,以考察影响浸出的各种因素,诸如浸出温度、浸出时间、氧分压和搅拌速度。
4) low-grade magnesite
低品位菱镁矿
1.
Preparation of high purity magnesia from low-grade magnesite;
用低品位菱镁矿制取高纯镁砂
5) low-grade manganese carbonate ore
低品位碳酸锰矿
1.
A method of enriching and recovering Mn from low-grade manganese carbonate ore with ammonium sulfate roasting method is investigated.
研究了采用硫酸铵焙烧法从低品位碳酸锰矿富集回收锰的工艺。
6) low-grade pyrolusite
低品位软锰矿
1.
Based of research somewhere low-grade pyrolusite by chemical leaching,ways for reasonably developing and utilizing the manganese mineral resources are discussed.
文章通过对某地低品位软锰矿的试验研究 ,采用直接浸出工艺流程 ,可获得较好技术指标的硫酸锰产品 ,为同类型锰矿的开发利用进行了有益探索。
补充资料：菱锰矿
| 菱锰矿 rhodochrosite 锰的碳酸盐矿物，成分为Mn[CO3]。常含有铁、钙、锌等元素。晶体属三方晶系，完整的菱面体晶形少见；通常呈粒状、块状、肾状等集合体。常呈淡玫瑰红色，氧化表面呈褐黑色。玻璃光泽。具完全的菱面体解理。莫氏硬度3.5～4.5，比重3.6～3.7。在热液、沉积和变质作用条件下均能形成，以沉积为主。中国贵州、湖南和东北等地锰矿床中，有大量菱锰矿产出。它是提取锰的重要矿物原料。色泽艳丽，透明的菱锰矿可作为低档宝石和工艺装饰品原料。
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