福建龙岩中甲铁矿床中铟、镉赋存状态及其综合回收经济评价  

The occurrence and comprehensive recovery assessment of In and Cd in the Zhongjia iron deposit,Fujian

作　　者：毛光武[1] 朱玉磷[1] 

机构地区：[1]中国冶金地质总局二局,福州350001

出　　处：《地质找矿论丛》2013年第1期58-64,共7页Contributions to Geology and Mineral Resources Research

摘　　要：福建龙岩中甲铁矿是上世纪60年代探明的海相火山沉积-热液叠加改造型多金属硫化物磁铁矿矿床。随着该矿难选铁矿石选矿技术的突破,最近发现矿石中共(伴)生的分散元素铟、镉含量超过综合利用工业最低品位要求,铟、镉的储量估算均可达大型规模。通过研究铟、镉的赋存状态,认为矿石中尚无铟、镉的独立矿物存在,铟、镉主要与锌呈类质同象存在于闪锌矿的晶格中;铟、镉综合回收经济评价表明,铟、镉在选矿流程中主要走向锌精矿,可在锌的冶炼过程中综合回收,并会获得很好的经济效益。永安—梅县凹陷带内有众多与该矿床类似的铁多金属矿,该矿床共(伴)生铟、镉含量及赋存状态的考察,对区域同类矿床伴生元素的综合利用、提升经济价值有重大意义。Zhongjia iron deposit is a marine volcanic sedimentary hydrothermally reworked polymetallic sulfide-magnetite ore deposit discovered in the last 60th. With breakthrough of beneficiation technology contents of indium and cadmium of the by-products is identified above the required minimum industrial grade and calculation shows that reserve of indium and cadmium is of a large ore deposit. The by-products occur as isomorph in lattice of sphalerite and not in independent minerals. It is assessed during comprehensive recovery that the by products are mainly flowed to the Zn concentrate and in metallurgical process of Zn they can be comprehensively recovered with excellent economic result. In Yong＇an-Meixian depres sion occur many similar Fe-poly-metallic ore deposits. Occurrence of indium and cadmium in Zhongjia iron deposit would supply evidence for comprehensive recovery of the by products and raise economic value of so many iron deposits.

关 键 词：中甲铁矿床 磁铁矿 铟 镉 赋存状态 综合利用 永安梅县凹陷 福建省 

分 类 号：P595[天文地球—地球化学] P616.4[天文地球—地质学]