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在Ｈ＿２Ｏ＿２存在下用稀硫酸浸出太平洋锰结核，首先将高品位锰结核磨细至０．０７４ｍｍ，浸出条件：矿浆浓度ｌｇ／Ｌ、Ｈ＿２ＳＯ＿４浓度３．５×１０￣３～２５×１０￣（－２）ｍｏｌ／Ｌ、Ｈ＿２Ｏ＿２，浓度１．７×１０￣（－３）～２．６×１０￣（－２）ｍｏｌ／Ｌ、温度３０～９０℃。所得结果归纳如下含少量Ｈ＿２Ｏ＿２的稀Ｈ＿２ＳＯ＿４可于室温快速从锰结核中提取Ｎｉ、Ｃｏ、Ｃｕ和Ｍｎ，金属的提取率依赖于Ｈ＿２ＳＯ＿４和Ｈ＿２Ｏ＿２的浓度，缺少任何一种都不可能得到满意效果。该方法与以往的浸出工艺不同，金属的提取率随温度升高而下降。最佳条件下，各金属的提取不如下：Ｍｉ１００％、Ｃｏ９５％、Ｃｕ１００％、Ｍｎ１００％、Ｆｅ６０％。
In the presence of H 2 O 2 leaching sulfuric acid with dilute sulfuric acid nodules, first high-grade manganese nodules grinding to 0.074mm, leaching conditions: pulp concentration lg / L, H 2 SO 4 concentration of 3.5 × 10 ~ 3 ~ 25 × 10 ~ (- 2) mol / L, H 2 O 2 at a concentration of 1.7 × 10 -3 -3.6 × 10 -2 mol / L and a temperature of 30-90 ℃. The obtained results are summarized as follows: H 2 SO 4 with a small amount of H 2 O 2 can rapidly extract Ni, Co, Cu and Mn from manganese nodules at room temperature. The extraction rate of metal depends on the concentrations of H 2 SO 4 and H 2 O 2. Without any one, satisfactory results can not be obtained. This method is different from the conventional leaching process, the metal extraction rate decreases with increasing temperature. The best conditions, the extraction of the metal is not as follows: Mi100%, Co95%, Cu100%, Mn100%, Fe60%.