Method for discriminating industry performance of natural crystalline silica

Abstract

The present invention provides a industrial performance distinguishing method for natural quartz, which aims at using the natural quartz to produce high purity quartz glass. The present invention provides a set of distinguishing methods and guidelines to fill up the blank of the natural quartz industrial performance distinguishing currently. The type of ore or the impure minerals in quartz, the size of quartz mineral grain and the type, the size and the abundance of the fluid inclusion in the quartz are distinguished through a microscope and an electron probe. The homogenization temperature and the shock temperature of the fluid inclusion are determined by a microscope heating table. The gas components in the inclusion are determined through a laser Raman microprobe. The water content in the quartz is determined by using a diffuse reflectance FTOR spectroscopy. The formation cause of a quartz mineral deposit is ensured by combing the methods and the geological characteristics of the mineral deposit. A quartz quality data base is established. A natural quartz industrial performance distinguishing guideline system is established by comparing the element characteristics of the quartz mineral. The potential value of quartz resource is fully exploited through discriminating the raw materials of the high quality quartz glass.

Description

technical field [0001] The invention relates to the field of non-metallic mineral silicon resources and silicon materials, raw material processing and purification in the quartz glass industry, in particular to a method for discriminating the industrial performance of natural quartz. Background technique [0002] Quartz glass is silicon dioxide (SiO 2 ) is a special glass composed of a single component, which is made of natural SiO 2 The crystal with the highest purity or high-purity quartz sand purified by a special process is used as the raw material, which is melted at a high temperature of more than 2,000 degrees. [0003] Quartz glass has excellent physical and chemical properties: such as ① high temperature resistance, can be used for a long time at 1100 ℃; ② corrosion resistance, except hydrofluoric acid, it hardly reacts with other acids; ③ good thermal stability, can Under severe temperature changes, the quartz glass is heated to about 1100 ° C, and it will not bu...

AI Technical Summary

Problems solved by technology

However, my country cannot produce high-purity quartz sand comparable to that of Unimin in the United States.

The reason is that there is a lack of in-depth research on the industrial performance of natural quartz, and no effective identification indicators have been established.