Characterisation of dust-sized coal particulates: Full physicochemical, mineralogical, and textural dataset extracted from QEMSCAN analysis

This dataset composes 10 excel sheets which demonstrate the different information extracted from the QEMSCAN analysis of 17 different coal particulate samples. <br> Sheet 1 contains the data validation information of each scanned sample. This report consists of the mineral and element distributions from the QEMSCAN, XRD and XRF analyses. Sheet 2 reports the precision on the mineral abundance values on the QEMSCAN data in sheet 1. Sheet 3 contains the particle size distribution information (based on equivalent circular diameter). Sheet 4 contains information on the composition of particles based on their size fraction. Sheet 5 represents the liberation data on the main minerals: clays, quartz, and pyrite. Sheet 6 shows the calculations used to determine the confidence limits associated with the liberation data reported in sheet 5. Sheet 7 reports the liberation and association data. This data compares the fraction of liberated grains to unliberated composite particles containing either quartz, clays, or pyrite and further distinguishes the compositional association between minerals in this unliberated fraction. Sheet 8 summarises the information extracted on particle roughness. Sheet 9 summaries the data on the elemental distribution of iron, calcium and silicon. Sheet 10 summaries the distribution of particle shapes amongst the samples.

本数据集包含10张Excel工作表，涵盖了对17个不同煤炭颗粒样品开展QEMSCAN分析所提取的各类信息。
第一张工作表包含各扫描样品的数据验证信息，该部分涵盖了通过QEMSCAN、X射线衍射（XRD）及X射线荧光光谱（XRF）分析得到的矿物与元素分布数据。
第二张工作表针对第一张工作表中的QEMSCAN数据，给出了矿物含量值的精度分析结果。
第三张工作表包含基于等效圆直径计算的颗粒尺寸分布信息。
第四张工作表包含基于颗粒粒级划分的颗粒组成信息。
第五张工作表呈现了黏土、石英及黄铁矿这三种主要矿物的解离度数据。
第六张工作表展示了用于确定与第五张工作表中解离度数据相关的置信限的计算过程。
第七张工作表给出了解离与伴生数据：该数据对比了自由解离颗粒与包含石英、黏土或黄铁矿的未解离复合颗粒的占比，并进一步区分了该未解离组分内矿物间的组成伴生关系。
第八张工作表汇总了颗粒粗糙度相关的提取信息。
第九张工作表汇总了铁、钙及硅元素的分布数据。
第十张工作表汇总了各样品的颗粒形状分布情况。