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深海锰结核以煤代焦还原熔炼新工艺研究
彭俊
长沙矿冶研究院有限责任公司
摘要:
针对锰结核焦炭还原熔炼成本高、环境污染大的问题,提出了锰结核以煤代焦还原熔炼新工艺。以东北太平洋中部深海锰结核为原料,对还原温度、还原时间、硅石加入量、无烟煤加入量对锰结核中Co、Ni、Cu、Fe、Mn回收率的影响进行了研究。结果表明:500g锰结核矿样加入60g无烟煤粉、5g硅石粉,在1300℃下反应40min,Co、Ni、Cu、Fe进入合金的回收率分别为99.49%、99.83%、98.59%、97.39%,Mn进入渣中的回收率为97.84%。
关键词:  深海锰结核  以煤代焦  还原熔炼
DOI:
分类号:
基金项目:中国大洋协会专项项目,
Study on new technology of deep sea manganese nodule smelting with coal instead of coke
pengjun
Changsha Research Institute of Mining and Metallurgy Co., Ltd.
Abstract:
Aiming for the current problem that high cost and environmental pollution in coke reduction smelting of manganese nodules, a new process of reducing smelting manganese nodules with coal instead of coke was proposed. The process parameters, which effect the recovery of Co, Ni, Cu, Fe and Mn, such as reduction temperature, reduction time, addition of silica and anthracite were investigated. The experimental results show that recoveries of Co, Ni, Cu, Fe into the alloy are 99.49%, 99.83%, 98.59%,97.39% respectively and the recovery rate of Mn into slag is 97.84%.Metals are recovered from manganese nodules by mixture of 500g manganese nodules with 60g anthracite coal,1g silica powder at 1300℃ for 40min.
Key words:  deep sea manganese nodule  coal instead of coke  reduction smelting
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