Secondary Recovery of Columbite from Tailing Dump in Nigerian Jos Mines Field

来源 :矿物质和材料特性和工程(英文) | 被引量 : 0次 | 上传用户:TC3000
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Millions of tons of tailing dump at Rayfield mine in Jos in North Central Plateau state of Nigeria have been found to contain large quantity of columbite. Initial attempts to recover columbite concentrates by local miners and mineral speculators from the
其他文献
This work presents the delamination resistance of woven glass fibre reinforced polymers (GFRP) and its influence on GFRP’s resistance to point impact. Two diff
摘要:随着课程改革的逐步深入,广大教师对反思性教学有了一定的认识和实践,本文重点阐述反思性教学的理解、特点、目的和实施,并就教学反思的书写提出建议。  关键词:反思性教学;理解、特点、目的、实施;教学反思  中图分类号:G451.6文献标识码:A文章编号:1009-010X(2007)12-0013-02    国家新一轮课程改革的实施,标志着我们的教学改革进入了一个全新的领域。这个领域为我们师生
Surface properties decide the fatigue, wear and corrosion behavior of a material. Hence their performance can be improved by surface modifications. Friction Sti
The present study deals with investigation relating to the influence of wear parameters like sliding speed, applied load and sliding distance on the dry sliding
A new semi-organic nonlinear optical thiosemicarbazide cadmium acetate (TSCA) material has been synthesized. TSCA single crystals were grown from aqueous soluti
Polyvinyl chloride (PVC) of different grades is the second most commonly used polymer for fabrication of electric cables and wires after polyethylene. Cables of
在人类的心理中存在着那样一些误区,生活永远在别处,有着那样一种听风就是雨的本能反应,再加上一点从众心理,结果就出了一此羊群效应
期刊
Thermomechanical treatment on cast Al-Si-Cu alloy (LM4) was carried out. The aim is to determine effects of degree of cold work, slurry thermal treatment and so
关键词:小学英语课程;冀教版英语六(下)第24课;复习课;教学设计  中图分类号:G623.31 文献标识码:B 文章编号:1009-010X(2010)06-0061-02    学习内容分析:  本课是冀教版小学英语六年级(下)第3单元第24课,是一节复习课。学生在本单元已经学习了一些关于夏日活动和自然界的词汇和短语。还学习了一个重要的时态——一般将来时“I will_________.”的用
The design and development of jaw grip for circular tensile test samples in a universal mechanical tester were undertaken in this work. In developing economies,