| 广西南源洞硅灰石中石墨的赋存特征及其对硅灰石粉白度的影响 |
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| 引用本文： | 蒋述兴.广西南源洞硅灰石中石墨的赋存特征及其对硅灰石粉白度的影响[J].矿物岩石,2002,22(1):10-14. |
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| 作者姓名： | 蒋述兴 |
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| 作者单位： | 桂林工学院材料工程系,广西,桂林,541004 |
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| 摘 要： | 采用X射线衍射（XRD）及扫描电子显微镜（SEM）等方法对广西南源洞以层控接触热变质作用为主，并伴随有接触交代作用的叠加所形成的硅灰石矿石中的黑色碳质物的物相及存在特征进行了研究。发现硅灰石矿石中的碳质物为石墨，并分别与多种矿物紧密伴生，伴生情况有几种：（1）碳质物与硅灰石、方解石紧密伴生；（2）碳质物与石英、方解石紧密伴生；（3）碳质物仅与方解石紧密伴生；（4）碳质物呈尘埃状或星点状被包裹于硅灰石矿物颗粒中；（5）碳质物以浸染、渗透方式存在于硅灰石矿物颗粒中。欲将碳质物从硅灰石矿物中解离出来，至少要将矿石粉碎到0.043mm以下。另外，还就硅灰石中的碳质物对于硅灰石粉白度的影响进行了讨论。
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| 关 键 词： | 硅灰石矿床 碳质物 微观特征 硅灰石粉 白度 广西 |
| 文章编号： | 1001-6872(2002)01-0010-05 |
THE EXISTING CHARACTERISTIC OF THE CARBONACEOUS子SUBSTANCE IN THE WOOASTONITE IN NANYUANDONG OF GUANG XI PROVINCE AND ITS INFLUENCE ON THE WHITENESS OF THE WOLLASTONITE POWDER |
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| JIANG Shu,xing.THE EXISTING CHARACTERISTIC OF THE CARBONACEOUS子SUBSTANCE IN THE WOOASTONITE IN NANYUANDONG OF GUANG XI PROVINCE AND ITS INFLUENCE ON THE WHITENESS OF THE WOLLASTONITE POWDER[J].Journal of Mineralogy and Petrology,2002,22(1):10-14. |
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| Authors: | JIANG Shu xing |
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| Abstract: | The characteristics of occurrence of the carbonaceous substance in the wollastonite in Nanyuandong of Guangxi Province were studied by means of the XRD and SEM and so on.The results of the research revealed that the black carbonaceous substance is the graphite.The graphite associates intimately with the wollastonite,calcite and quartz respectively.To free the carbonaceous substance from the wollastonite,the ore must be crushed and ground to small particle of less than 0.043 mm.The influence of the black carbonaceous substance on the whiteness of the wollastonite powder was discussed. |
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| Keywords: | wollastonite carbonaceous substance microscopic characteristics wollastonite powder whiteness |
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