A New Insight into the Influence of Fluid Inclusions in High-Purity Quartz Sand on the Bubble Defects in Quartz Glass: A Case Study from Vein Quartz in the Dabie Mountain

IF 2.2 4区 地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS
Minerals Pub Date : 2024-08-01 DOI:10.3390/min14080794
Shoujing Wang, Deshui Yu, Chi Ma, Fushuai Wei, Haiqi Zhang
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Abstract

A purification process including flotation separation, acid leaching, calcination, and water quenching was conducted to obtain high-purity quartz sand. The surface morphology of the quartz after flotation separation, acid leaching, calcination, and water quenching reveals that the cracks, pits, and cavities on the quartz surface can be deepened and enlarged, and the more fluid inclusions, the greater the number and openness of cracks, pits, and cavities. The specific surface area is positively correlated with the number of cracks, pits, and cavities, the opacity of quartz glass, and the number of bubbles in quartz glass. The results of Raman spectroscopy analysis reveal that the bubbles in quartz glass are composed of nitrogen, which excludes the possibility of bubble formation in quartz glass caused by the gas composition (i.e., H2O) of unburst fluid inclusions in quartz sand. The formation of bubbles in quartz glass is more likely to be related to a high specific surface area and porosity, which increase the surface adsorption performance of quartz and contribute to the adsorption of more gas. The presented results suggest that using these methods to reduce the content of fluid inclusions in quartz cannot effectively solve the problem of bubbles in quartz glass, and using quartz raw materials with no or minor fluid inclusions is still the key to ensuring the quality of quartz products.
高纯度石英砂中的流体包裹体对石英玻璃气泡缺陷影响的新见解:来自大别山脉石英的案例研究
通过浮选分离、酸浸、煅烧和水淬等提纯工艺,获得了高纯度石英砂。经过浮选分离、酸浸、煅烧和水淬后的石英表面形态显示,石英表面的裂纹、凹坑和空洞会加深和扩大,流体包裹体越多,裂纹、凹坑和空洞的数量和开口度越大。比表面积与裂缝、凹坑和空洞的数量、石英玻璃的不透明度以及石英玻璃中气泡的数量呈正相关。拉曼光谱分析结果显示,石英玻璃中的气泡由氮组成,这排除了石英砂中未爆裂流体夹杂物的气体成分(即 H2O)导致石英玻璃中气泡形成的可能性。石英玻璃中气泡的形成更有可能与高比表面积和高孔隙率有关,它们提高了石英的表面吸附性能,有助于吸附更多的气体。上述结果表明,使用这些方法减少石英中的流体夹杂物含量并不能有效解决石英玻璃中的气泡问题,使用无流体夹杂物或少量流体夹杂物的石英原料仍是确保石英产品质量的关键。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Minerals
Minerals MINERALOGY-MINING & MINERAL PROCESSING
CiteScore
4.10
自引率
20.00%
发文量
1351
审稿时长
19.04 days
期刊介绍: Minerals (ISSN 2075-163X) is an international open access journal that covers the broad field of mineralogy, economic mineral resources, mineral exploration, innovative mining techniques and advances in mineral processing. It publishes reviews, regular research papers and short notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.
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