One winter many years ago, on the sand dunes of the Taklimakan Desert, a friend who has been engaged in the glass industry for many years said that it would be great if desert sand could be used to make glass one day.
Today, this dream has come true.
On August 12, the Ganqika Sand Mine of China National Building Materials Tongliao Silica Sand Industry Co., Ltd. started full-line trial production.
Based on the flotation high-silica sand products, Tongliao Silica Sand Company and the National Key Laboratory of China National Building Materials Glass New Materials Research Institute conducted deep purification and made major breakthroughs, purifying the product indicators to SiO2 greater than 99.5% and Fe2O3 less than 0.01% (100ppm), meeting the "photovoltaic sand" indicator requirements, breaking through the technical bottleneck of "desert sand" purifying "photovoltaic sand", realizing the high-end silica sand products, increasing product added value, and extending the silica sand industry chain.
For glass production companies, the scarcity of quartz sand, especially low-iron sand, has become apparent. As the production capacity of photovoltaic glass approaches saturation, the cyclical fluctuation of supply and demand in the industry becomes the norm, and low-iron quartzite mineral resources may become an important competitive factor for enterprises.
In this case, purifying desert sand into raw materials for glass or even photovoltaic glass may be a new option for some enterprises.
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