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[1]杨稳权,方世祥,庞建涛,等.胶磷矿不同磨矿细度单体解离度测定及其浮选应用[J].武汉工程大学学报,2014,(04):31-34.[doi:103969/jissn16742869201404007]
　YANG Wen quan,FANG Shi xiang,PANG Jian tao,et al.Determination of collophane monomer dissociation degree under different grinding fineness and its use in flotation[J].Journal of Wuhan Institute of Technology,2014,(04):31-34.[doi:103969/jissn16742869201404007]
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胶磷矿不同磨矿细度单体解离度测定及其浮选应用(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2014年04期
页码:
31-34
栏目:
化学与化学工程
出版日期:
2014-04-30

文章信息/Info

Title:
Determination of collophane monomer dissociation degree under different grinding fineness and its use in flotation
文章编号:
16742869(2014)04003104
作者:
杨稳权1; 2; 方世祥1; 庞建涛1; 何海涛1; 张泽强2
1.云南磷化集团有限公司磷资源开发利用工程技术研究分公司,云南 昆明 650113;2.武汉工程大学资源与土木工程学院, 湖北 武汉 430074
Author(s):
YANG Wenquan1; 2; FANG Shixiang1; PANG Jiantao1; HE Haitao1; ZHANG Zeqiang2
1.Engineering and Technical Research Branch of Phosphorus Resource Development and Utilization,Yunnan Phosphate Group Co.,LTD.,Kunming 650113,China;2.School of Resource and Civil Engineering,Wuhan Institute of Technology,Wuhan 430074,China
关键词:
磨矿细度; 单体解离度; 实际回收率; 最大理论回收率
Keywords:
grinding fineness; monomer dissociation degree; actual recovery rate; maximum theoretical recovery
分类号:
TD871+.3
DOI:
103969/jissn16742869201404007
文献标志码:
A
摘要:
通过测定胶磷矿在不同磨矿细度下的单体解离度，来计算磷矿的理论最大回收率，进而通过比较实际回收率与理论最大回收率来判定浮选指标的优劣.利用偏光显微镜观测，采用过尺线测法，在磨矿细度-0.076 mm含量分别占84.23%、88.71%、92.74%和95.16%的条件下，测定了磷块岩中有用矿物（胶磷矿）和脉石矿物（白云石、石英）的单体解离度.据此计算获得了对应磨矿细度下胶磷矿的理论最大回收率，分别为95.11%、95.71%、96.70%和96.72%.初步浮选试验显示磨矿细度在-0.076 mm占88.71%时较为适宜，浮选脱镁率为88.76%，磷精矿实际回收率为87.54%.在此磨矿细度下，通过优化浮选工艺流程及药剂制度，浮选磷精矿实际回收率可达91.24%，精矿中磷酸盐矿物的回收率可达95.33%，说明通过测定胶磷矿的单体解离度来优化指标是可行的.
Abstract:
To judge the flotation indexes excellent or not,the maximum theoretical recovery was got by measuring collophane monomer dissociation degree under different grinding fineness,then it was compared with the real concentrate recovery.The monomer dissociation degrees of valuable minral(Collophanite) and gangue minerals(dolomite and quartz) in the phosphate rock were measured by polarization microscope,under the grinding fineness -0.076 mm accounting for 84.23%,88.71%,92.74% and 95.16%.The corresponding maximum theoretical recovery calculated based on the dissociation degrees is 95.11%,95.71%,96.70%,96.72%,respectively.The best grinding fineness is 88.23%,and the magnesium removal rate is 88.76%,but the real phosphate concentrate recovery is only 87.54%.After optimizing the flotation technology and reagent system,the real phosphate concentrate recovery increases to 91.24%,and the phosphate mineral recovery in the concentrate is 95.33%.The results show that optimizing the flotation index by measuring collophane monomer dissociation degree is feasible.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：20140211基金项目：国家科技支撑计划项目（2011BAB08B01）；湖北省自然科学基金创新群体项目（2010CDA07）作者简介：杨稳权（1976），男，云南富源人，高级工程师.研究方向：磷矿选矿与浮选药剂技术研究与开发.
更新日期/Last Update: 2014-05-15