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在综合处理固体合金废料以及含镍、铁和铜的钨合金废料时,传统的方法是和硝石熔合,再将熔块水浸,钴、钛、铁、镍、铜以及其它元素的氧化物(钴渣)会沉在底部。在盐酸分解钴渣转变成溶液的过程中,除了所需组分外,一些主要杂质(诸如铁、镍和铜)也会转移到溶液中。为了把钴返回到硬质合金的生产中,需要在湿法转化阶段深度净化溶液,以求除去上述一些杂质,特别是钴中的铜含量不得超过0.04％。由于将溶液中的铜水解净化到这样的残余含量会引起水合滤渣中钴的损失增高,而进一步贫化又是一个十分复杂的课题,为此,本文的目的旨在以选择性吸附铜来净化溶液的可能性进行研究。
In the integrated treatment of solid alloy scrap and tungsten alloy scrap containing nickel, iron and copper, the traditional method is to fuse with saltpeter, then flooding the frit with oxides of cobalt, titanium, iron, nickel, copper and other elements Cobalt slag) will sink at the bottom. During the conversion of hydrochloric acid to decomposed cobalt slag into solution, some of the major impurities, such as iron, nickel and copper, are transferred to the solution in addition to the desired components. In order to return the cobalt to the cemented carbide production, it is necessary to deeply purify the solution during the wet conversion stage in order to remove some of the above impurities, especially copper in the cobalt content should not exceed 0.04%. Since the hydrolysis of copper in the solution to such a residual level causes the loss of cobalt in the hydrated residue to increase, further depletion is a very complex issue and for this reason the purpose of this paper is to purify selectively with copper The possibility of solution was studied.