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一、玻璃工业对砂的要求砂虽然种类繁多,分布广泛,但能用于玻璃工业的并不多.常用的只有符合质量要求的石英砂,砂岩和石英岩.所谓质量要求者,即原料的品位高,化学成分稳定,水分稳定,颗粒均匀,有害杂质少等.根据建材部制定的标准,平板玻璃工业对硅质原料的最低要求是:SiO_2≥96%,Fe_2O_3≤0.2%.
1. The demand for sand from the glass industry is wide and widely distributed, but it is not widely used in the glass industry. Only the quartz sand, sandstone and quartzite that meet the quality requirements are commonly used. The so-called quality requirements are raw materials. High grade, stable chemical composition, stable water content, uniform particles, less harmful impurities, etc. According to the standards set by the Ministry of Building Materials, the minimum requirements for the silicon raw materials in the flat glass industry are: SiO2 ≥ 96%, Fe_2O_3 ≤ 0.2%.