Study is made on the process for recovering ni and co from the ni and co containing solution prepared from low grade manganese oxide ore by reductive roasting and sulfuric acid leaching.

研究了从低品位氧化锰矿经还原焙烧、硫酸浸出得到的含钴镍原料液中回收钴镍的工艺。

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Magnetic separation equipment of manganese ore, manganese oxide, iron ore, kaolin, rare earth ore magnetic separator can be used to separate.

磁选设备锰矿，氧化锰矿，铁砂矿，高岭土，稀土矿等都可以用磁选机来选别。

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Oxide manganese deposits in east-northern Guizhou are of exotic weathering deposits, further may be subdivided into two kinds of the eluvial ore deposit and the leaching-accretion deposit by genesis.

黔东北地区的氧化锰矿床系风化矿床，按其成因可进一步分为残积矿床和淋积矿床两种。

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