摘要
研究采用三相氧化法从大洋多金属结核中提取有价金属的工艺过程。结果表明,在反应温度280～320℃,反应时间2～4h,碱锰比40～55,结核粒度68～90μm,空塔气速0.071～.127m/s的条件下,多金属结核中锰的转化率大于95%,铁、镍富集率高于98%,铜、钴富集率在95%以上。三相氧化法是一种切实可行的湿法处理大洋多金属结核的方法,既可实现产品的系列化和高值化,又能体现清洁生产和再生循环思想。
The process of valuable metals recovery from ocean polymetallic nodules by the 3-phases oxidation method is investigated. It is indicated by the results that the conversion of manganese in the polymetallic nodules is above 95%, the enrichment rate of ferrous and nickel is above 98%, and the copper and cobalt is above 95% under condition of temperature 280～320℃, reaction time 2～4h, nodule size 68～90μm, superficial velocity 0.071～0.127m/s. The 3-phases oxidation method is a feasible hydrometallurgical process to deal with the ocean polymetallic nodules. The series and high value of the products is realized, furthermore the idea of clean production and resources regeneration and recycling is embodied by adoption of the 3-phases oxidation method.
出处
《有色金属》
CSCD
北大核心
2005年第2期78-80,97,共4页
Nonferrous Metals
基金
国家长远发展专项项目(DY105-04-01)
