富氧底吹造锍捕金工艺研究

采用富氧底吹造锍捕金工艺处理复杂含铜、高砷金精矿,以提高金、银的回收率,减少废水、废渣的排放。研究影响造锍熔炼过程中金、银走向和在冰铜中富集程度的因素,并调整造锍熔炼工艺指标,降低炉渣中有价元素的损失。     

铜镍矿富氧侧吹熔池熔炼工艺

介绍了铜镍矿富氧侧吹熔池熔炼工艺、主要技术经济指标以及富氧侧吹熔池熔炼炉的结构。实践表明,采用富氧侧吹熔炼铜镍矿具有流程短、能耗低、环境好等特点。     

Process for the Recovery of Cobalt and Nickel from Sulphate Leach Liquors with Saponified Cyanex 272 and D2EHPA

Abstract

In this paper, a process is reported for the recovery of cobalt and nickel from copper raffinate solutions using partially saponified Cyanex 272 and D2EHPA as the extractants. The aqueous feed contains 1.65 g/L cobalt and 16.42 g/L nickel. More than 99.9% cobalt separation was achieved with 0.13 M Cyanex 272 (60% neutralized with alkali) in two counter‐current stages at an aqueous to organic phase ratio of 1.1:1. Co‐extraction of nickel was 0.18% only. Stripping of cobalt from a loaded organic phase was carried out with synthetic spent electrolyte solution at an organic to aqueous phase ratio of 2.5 in two counter‐current stages to generate a pregnant electrolyte solution to produce cobalt metal by electrowinning. Similarly, optimum conditions for nickel extraction with 60% neutralized 1 M D2EHPA at O/A ratio of 1.4 in 2 two stages and stripping of metal with synthetic spent electrolyte at O/A ratio of 1.6 in two stages were standardized. Extraction and stripping efficiencies were >99% and the flowsheet of the process is demonstrated.     

锑鼓风炉产锑锍、粗锑直接吹炼工艺研究与应用

文章介绍了一种锑鼓风炉产锑锍、粗锑挥吹炉直接吹炼工艺,生产实践表明,该工艺提高了锑鼓风炉三氧化二锑的总产出率,同时生产含贵金属粗锑.是种低碳经济的炼锑方法.     

富氧侧吹熔池熔炼铜镍矿

介绍了富氧侧吹熔池熔炼工艺的特点,富氧侧吹炉的结构及生产实践.实践表明,富氧侧吹熔池熔炼铜镍矿具有流程短、能耗低、环境好等特点.     

ANINTELLIGENT DECISION SUPPORTSYSTEM（IDSS） ONTHEPROCESSOFNICKELMATTESMELTER

ＡＮＩＮＴＥＬＬＩＧＥＮＴＤＥＣＩＳＩＯＮＳＵＰＰＯＲＴＳＹＳＴＥＭ（ＩＤＳＳ）ＯＮＴＨＥＰＲＯＣＥＳＳＯＦＮＩＣＫＥＬＭＡＴＴＥＳＭＥＬＴＥＲＡＮＩＮＴＥＬＬＩＧＥＮＴＤＥＣＩＳＩＯＮＳＵＰＰＯＲＴＳＹＳＴＥＭ（ＩＤＳＳ）ＯＮＴＨＥＰＲＯＣＥＳＳＯ...     

浅谈金川高冰镍传统精炼工艺技术改方案和镍产品结构调整

论述了金川有色金属公司现行高冰镍精炼工艺技改的必要性。在综合国内外高冰镍精炼技术的基础上,结合金川有色金属公司的实际,重点阐述了高冰镍硫酸湿法精炼和氯化精炼工艺的优缺点。指出,现行高冰镍精炼工艺的改造应吸取氯化精炼和硫酸湿法精炼两种工艺的长处,稳妥地向高冰镍全湿法精炼过渡。文中还对该公司镍产品结构调整提出看法。     

应用新一代萃取剂Cyanex272进行钴镍分离的研究

Ｃｙａｎｅｘ２７２是新一代在硫酸盐溶液中分离钴、镍的萃取剂。本文研究了各种因素对Ｃｙａｎｅｘ２７２分离钴、镍的影响,探寻了Ｃｙａｎｅｘ２７２在镍电解净液钴渣处理工艺和高冰镍精炼新工艺中的应用前景。     

加压酸浸法从烟化炉冰铜中浸出铜和镍的试验研究

烟化炉冰铜主要是采用烟化炉处理低品位铜、锡、镍、锌等物料时产生的中间产物,主要含铜、镍、铁、硫等元素,从中浸出铜和镍具有重要价值。采用加压酸浸法从烟化炉冰铜中浸出铜和镍,试验研究了时间、温度、氧分压、液固比、粒度等因素对铜、镍、铁浸出率的影响。试验结果表明：烟化炉冰铜粒度球磨至小于75μm、温度433K、时间3h、氧分压为0.6MPa、液固比4/1mL/g、木质素磺酸钠用量为2‰的优化条件下,铜、镍、铁浸出率分别平均为98.18%、98.42%和26.46%。