A Study on the Reductants on Rhodochrosite Leaching;
还原剂对菱锰矿锰浸取率的影响研究
Research on Preparation Process of Manganese Sulphate by Lean Rhodochrosite Acid Leaching Method;
贫菱锰矿酸浸法制备硫酸锰的工艺研究
Rich and worth-mining manganese spar has been discovered in eastern Sichuan Province.
针对近年在四川东部某地发现贮量丰富、具有开采价值的菱锰矿组分构成特点，选择酸解法工艺制备硫酸锰，文中对原矿存在的钙、镁、铝、铁、硅和磷等杂质元素的去除，进行了扼要论述，制备过程又采取简便合理的工艺措施，从而保证产品符合质量标准。
Research on technological conditions of low-grade rhodochrosite leaching manganese
低品位菱锰矿浸出锰的工艺条件研究
Research on Preparation of Chemical Manganese Dioxide for Alkaline Zn-Mn Battery from a Low-grade Manganese Carbonate Ore
贫菱锰矿合成碱锰电池级化学二氧化锰研究
Study on the Preparation of Manganic Manganous Oxide from Low Grade Rhodochrosite and the Control of Its Forming Process;
贫菱锰矿制备四氧化三锰过程的控制研究
Study on the Preparation of Manganese Sulfate from Manganese Spar and Titanium White Waste Acid
钛白废酸与贫菱锰矿制备硫酸锰技术研究
The pyrite and siderite associated with the ores have been oxidized into limonite, hemitite and goethite.
黄铁矿、菱铁矿变为褐铁矿、赤铁矿和针铁矿。
A mixture of black manganese oxide minerals.
硬锰矿一种黑色氧化锰矿的混合物
Method for determination of total manganese content inmanganese ores
GB/T1506-1979锰矿石中全锰量的测定
an oxide of manganese found naturally as hausmannite.
一种锰的氧化物，作为黑锰矿天然存在。
Dianjiejinzhumeng, manganese series product processing, marketing.
电解金属锰，锰矿系列产品加工，销售。
Resourcesof Mn-ores and Development of EMM;
中国的锰矿资源和电解金属锰的发展
Uncertainty Assessment for Manganese Proportion Testing in Manganese Ore
锰矿石中锰含量测定的不确定度评估
Study on Continuous Titration Detemination of Manganese and Iron in the Manganese Ore
中碳锰铁矿中锰和铁的连续测定研究
Determination of Manganese Ore Capacity of Manganese Uncertainty Evaluation
容量法测定锰矿石中锰不确定度评定
pockets of manganese in the rock;
岩石中含有锰的矿层；
Study on Technology for Preparation Manganese Carbonate or Manganese Suphate from Leaching Silver-Manganese Ore Solution;
从银锰矿的浸锰液中制取硫酸锰和碳酸锰的工艺研究
A Technological Investigation of the Production of Manganese Sulfate Using Soft Manganese Extract and Sulfuric Iron Ore in Sulfuric Acid;
软锰矿——黄铁矿直接酸浸生产硫酸锰的工艺研究
unfired brick of magnesite or chrome magnesite
菱镁土或络镁矿物制未焙烧砖
The magnesite originated from the peridotite by weathering.
菱镁矿是由橄榄岩风化形成的。