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本研究以亚铜离子为催化剂、一氧化碳为还原剂，在常温常压下，于氨一碳酸铵水溶液中直接还原大洋多金属结核（又称锰结核），同时选择浸出镍、钴、铜等有价金属，锰与铁、硅等杂质一起留在浸出渣中，视市场需求决定锰的回收与否及产品方案，具有较强的市场应变能力。文章叙述了结核的还原反应动力学及还原氨浸的试验结果。该工艺对不同类型（低铁型和高铁型）的结核同样适应，在优化的工艺条件下，有价金属浸出率分别达（％）：Ｎｉ９７～９９、Ｃｏ９０～９５、Ｃｕ９０～９５，特别是钴的浸出率较传统的还原焙烧－氨浸有显著提高。
In this study, cuprous ion as a catalyst, carbon monoxide as a reductant, at room temperature and pressure, ammonia-ammonium carbonate solution in the direct reduction of oceanic polymetallic nodules (also known as manganese nodules), while the choice of leaching nickel, cobalt, copper, etc. The price of metals, manganese and iron, silicon and other impurities remain in the leaching residue, depending on market demand to determine the recovery of manganese or product programs, with strong market resilience. The article describes the kinetics of reduction of tuberculosis and ammonia reduction test results. The process adapts equally to different types of nodules (low-iron type and high-iron type). Under the optimized process conditions, the leaching rates of valuable metals are as follows: Ni97-99, Co90-95, Cu90-95, Cobalt leaching rate than the traditional reduction roasting - ammonia leaching significantly increased.