1　引言大洋多金属结核问题长期以来一直受到人们的关注[1～ 3 ] .大量的研究结果表明 ,多金属结核中最有经济价值的铜、钴、镍等有价金属元素 ,主要赋存于仅占整个结核约 1 5%锰矿相中 .我们曾对人工合成 1ｎｍ锰矿相 (ｓｙｎｔｈｅｔｉｃ 1ｎｍｍａｎｇａｎａｔｅ ,以下简称 1 Introduction The problem of polymetallic nodules in the oceans has long been a subject of considerable concern.1-3 Numerous studies have shown that the most economically valuable metal elements such as copper, cobalt and nickel in polymetallic nodules mainly occur in Only accounting for about 15% of the total tuberculosis manganese phase.We have synthetic 1nm manganese phase (synthetic 1nmmanganate, hereinafter referred to as