Flotation studies on low grade graphite ore from eastern India

来源 :International Journal of Mining Science and Technology | 被引量 : 0次 | 上传用户:wanghongtao11
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
A low grade graphite ore from eastern India was beneficiated by flotation to improve its quality. The ore was composed of 87.80% ash and 8.59% fixed carbon. Primary coarse wet grinding(d80: 186 lm) followed by rougher flotation in Denver flotation cell using diesel as collector and pine oil as frother yielded a rougher concentrate. Regrinding(d80: 144 lm) of this rougher concentrate was opted for further liberation of graphite. It was followed by cleaning in laboratory flotation column. This combined process of relatively coarse primary grinding followed by regrinding and cleaning in flotation column resulted in final concentrate of 7.44% yield with 89.65% fixed carbon and 6.00% ash. This approach of two-stage grinding to recover the flake graphite at the coarsest possible grind can help to minimize grinding energy costs. A conceptual flow sheet which is cost effective was developed based on this methodology. A low grade graphite ore from eastern India was beneficiated by flotation to improve its quality. The ore was composed of 87.80% ash and 8.59% fixed carbon. Primary coarse wet grinding (d80: 186 lm) followed by rougher flotation in Denver flotation cell using Diesel as collector and pine oil as frother yielded a rougher concentrate. Regrinding (d80: 144 lm) of this rougher concentrate was opted for further liberation of graphite. It was followed by cleaning in laboratory flotation column. This combined process of relatively coarse primary grinding followed by regrinding and cleaning in flotation column resulted in final concentrate of 7.44% yield with 89.65% fixed carbon and 6.00% ash. This approach of two-stage grinding to recover the flake graphite at the coarsest possible grind can help to minimize grinding energy costs A conceptual flow sheet which is cost effective was developed based on this methodology.
其他文献
2013年自然灾害情况rn2013年,我国自然灾害以洪涝、地震、台风、干旱和地质灾害为主,风雹、低温冷冻、雪灾、森林火灾、海洋灾害也均有不同程度发生,相继遭受了四川芦山地震
劳伦·德默特劳伦·德默特先生现任AREVA公司输配电业务执行副总裁,负责自动化及信息系统业务(简称“输配电自动化”)。劳伦先生于2000年10月加入AREVA公司。他领导了电能管
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
Spontaneous combustion(sponcom) is one of the issues of concern with the blasting gallery(BG) method of coal mining and has the potential to cause fires, and im
期刊
当前计算机技术已经在社会各个领域得到了广泛应用,是一种影响深远的技术,在计算机技术的支持下也加快了电子商务发展步伐.随着电子商务逐步渗透到我们生活的方方面面,在商品
The soft rock’s heterogeneity and nonlinear mechanical behavior cause extremely difficult maintenance on the soft rock roadway. Aiming at the asymmetric deform
期刊
2005年3月27日“水泥与混凝土利废技术与可持续发展论坛”在北京华润饭店召开.当晚主办方召开研讨会,邀请参会代表就白天的大会发言展开交流与探讨,会议由中国建材工业协会副
濒临死亡是什么感觉?42岁的魏先生深有体会。两个多月前他突然出现胸闷心慌、全身发抖、呼吸困难等症状,经及时治疗,“警报”解除。此后,平均一星期送次急诊,最后发展到担心自己来不及救治,而不敢离开医院。医生做了详细检查,结果一切正常。江苏省中医院脑病中心心理门诊王晓勇主任判断其为惊恐发作,是焦虑急性发作表现。  原来不久前,魏先生的哥哥罹患肺癌不幸去世,忙完哥哥的事后,魏先生就干咳不止。担心会像哥哥一
期刊
国家标准《钢门窗》编制组于2014年8月4日在北京召开第二次工作会。会议重点讨论了《钢门窗》征求意见稿。会议由主编单位谭宪顺主持,共19家参编单位,23人参加了会议。住房和城