Study on Process Mineralogy of a Low-grade Refractory Phosphate Ore in Sichuan
-
摘要:
以四川某低品位难选磷矿石为研究对象，采用化学分析、显微鉴定分析、X射线衍射分析、红外吸收光谱分析等手段进行了详细工艺矿物学研究。矿石矿物主要由胶态磷灰石、细晶白云石和石英三大部份组成，另含有少量黄铁矿、褐铁矿、水云母、炭质等。试样中P2O5、MgO、SiO2含量分别为17.54%、6.83%、18.36%，属于高镁中硅型低品位沉积磷块岩。研究结果表明，该磷矿石采用单一反浮选工艺无法获得合格的磷精矿产品，可以采用正-反浮选工艺或者X射线分选技术获得高品质磷精矿产品。
Abstract:The process mineralogy of a low-grade refractory phosphate ore in Sichuan Province was studied by means of chemical analysis, microscopic identification, X-ray diffraction and infrared spectrometry analysis. The ore minerals are mainly composed of colloidal apatite, fine-grained dolomite and quartz, and contain a small amount of pyrite, limonite, hydromica, carbon and so on. The contents of P2O5, MgO and SiO2 in the samples are 17.54%, 6.83% and 18.36%. The results of the study show that the phosphate concentrate cannot be obtained by single reverse flotation process, and high-quality phosphate concentrate can be obtained by either forward-reverse flotation or x-ray separation.
-
Key words:
- Phosphate ore /
- Low-grade /
- Refractory /
- Process mineralogy
-
-
表 1 试样化学多项分析结果/%
Table 1. Results of chemical multinomial analysis of the samples
P2O5 MgO SiO2 CaO Al2O3 Fe2O3 F CO2 S 17.54 6.83 18.36 32.62 0.841 2.204 1.64 14.81 1.77 
下载: 导出CSV
表 2 试样矿物成分分析
Table 2. Analysis of the mineral composition of the samples
矿物名称 胶态磷灰石 纤晶磷灰石、细晶磷灰石 白云石 石英（玉髓） 相对含量/% 35~45 1~5 10~15 15~25 矿物名称 方解石 水云母 黄铁矿、褐铁矿、金红石、炭质等 相对含量/% 1~5 1~5 2~8
下载: 导出CSV
表 3 胶磷矿团粒矿物组成
Table 3. Agglomerate mineral composition of collophanite
矿物名称 磷灰石 白云石 硅质矿物 其他 含量/% 75~85 3~15 5~20 <1
下载: 导出CSV
表 4 磷灰石集合体工艺粒度测定结果
Table 4. Results of particle size determination of apatite aggregate
项目 2~1.0 1.0~0.50 0.50~0.25 0.25~0.125 0.125~0.063 0.063~0.03 0.03~0.01 个别/% 4.72 23.10 36.39 21.38 10.21 3.75 0.45 累计/% 4.72 27.82 64.21 85.59 95.80 99.55 100.00
下载: 导出CSV
表 5 白云石集合体工艺粒度测定结果
Table 5. Results of determination of technological granularity of dolomite aggregate
粒级/mm 3.0~1.0 1.0~0.50 0.50~0.25 0.25~0.125 0.125~0.063 0.063~0.03 0.03~0.01 个别/% 27.24 23.01 16.87 20.46 8.69 3.07 0.66 累计/% 27.24 50.25 67.12 87.58 96.27 99.34 100.00
下载: 导出CSV
-
[1] 邵厥年, 陶维屏, 等. 矿产资源工业要求手册[M]. 北京: 地质出版社, 2014: 321-329.
SHAO J N, TAO W P, et al. Mineral resources industry requirements manual[M]. Beijing: Geological Publishing House, 2014: 321-329.
[2] 郑水林. 非金属矿加工与应用[M]. 北京: 化学工业出版社, 2013: 211-215.
ZHENG S L. Non-metallic mineral processing and application[M]. Beijing: Chemical Industry Press, 2013: 211-215.
[3] 黄晨蕾, 罗惠华, 蔡忠俊, 等. 2018年中国磷矿选矿年评[J]. 武汉工程大学学报, 2019(1):559-565.
HUANG C L, LUO H H, CAI Z J, et al. Annual review of China's phosphate ore beneficiation in 2018[J]. Journal of Wuhan Institute of Technology, 2019(1):559-565.
[4] 甄逢生, 沙惠雨, 刘长淼, 等. 中国磷矿石选矿工艺研究现状[J]. 金属矿山, 2018(2):6-13.
ZHEN F S, SHA H Y, LIU C M, et al. Research status of phosphate ore beneficiation technology in China[J]. Metal Mine, 2018(2):6-13.
[5] 朱鹏程, 刘江林, 彭操. 云南某低品位磷矿双反浮选工艺研究[J]. 矿产综合利用, 2018(2):47-51. doi: 10.3969/j.issn.1000-6532.2018.02.011
ZHU P C, LIU J L, PENG C. Research on the double reverse flotation process of a low-grade phosphate rock in Yunnan[J]. Multipurpose Utilization of Mineral Resources, 2018(2):47-51. doi: 10.3969/j.issn.1000-6532.2018.02.011
[6] 周乐光. 工艺矿物学[M]. 北京: 冶金工业出版社, 2009: 19-103.
ZHOU L G. Process mineralogy[M]. Beijing: Metallurgical Industry Press, 2009: 19-103.
[7] 杨南如, 岳文海. 无机非金属材料图谱手册[M]. 武汉: 武汉工业大学出版社, 2000: 1-64.
YANG N R, YUE W H. Manual of atlas of inorganic nonmetallic materials[M]. Wuhan: Wuhan University of Technology Press, 2000: 1-64.
[8] 张志雄. 矿石学[M]. 北京: 冶金工业出版社, 1984: 130-134.
ZHANG Z X. Mineralogy[M]. Beijing: Metallurgical Industry Press, 1984: 130-134.
-
图(5)
表(5)
计量
- 文章访问数: 564
- PDF下载数: 95
- 施引文献: 0