Why is it so difficult to produce photovoltaic quartz sand?

2024-03-27

To produce sand worth tens of thousands or even hundreds of thousands of yuan per ton, these two conditions must be met: the advantage of purification technology + the advantage of ore resources. High-tech purification technology requires not only a large amount of capital investment, but also a process of time and experience accumulation.

Compared with purification technology, ore resources are more decisive for the value of quartz sand. Any kind of quartz ore has certain purification and processing limitations, and there is a purification limit under the existing economic and technical conditions.

So how to judge whether your own mine can eventually produce 50,000 yuan/ton of sand or 500 yuan/ton of sand? In the past, judging whether quartz mineral resources have high-purity quartz potential was mainly based on chemical purity (SiO2 and common impurity element content) and the content of gas-liquid inclusions. Although this method can easily and quickly determine the quality of quartz, it lacks a comprehensive understanding of the chemical composition of the raw materials, embedded particle size, gangue minerals, inclusions and lattice impurities.

Both theory and industrial practice reveal this: the key to a stable supply of high-purity quartz sand is to seek high-quality high-purity quartz mineral resources, and systematic exploration and evaluation are required. At the same time, it should also be noted that the quality of high-purity quartz sand Production is a systematic project that not only relies on the improvement of high-purity quartz preparation technology, but more importantly, the research on the geological conditions for the production of high-purity quartz raw materials, as well as mining procedures, preparation processes, testing and quality control, etc. the combined influence of factors.