Special Material Silicon Metal 1502

According to the classification of industrial silicon by Guangqi, different grades correspond to the highest content requirements of the main impurity elements in the product: iron, aluminum and calcium. Specific to silicon metal 1502, the corresponding four-digit number after the grade indicates the maximum content requirements of the main impurity elements in the product: iron, aluminum, and calcium. This means that silicon metal 1502 has specific standards for the content control of iron, aluminum, and calcium in the production process, and this specification of industrial silicon is suitable for industrial application scenarios with specific requirements for impurity content.

1.The simplest three steps in the production of silicon metal 1502 mainly include: raw material preparation: the use of silica and carbonaceous reducing agent as the main raw materials. Silica is the main source of silicon, while carbonaceous reducing agents such as petroleum coke and washed coal are used to reduce silica during the smelting process. Smelting process: The prepared raw materials are put into electricity, and the silica and carbonaceous reducing agent are chemically reacted by electrically heated to generate industrial silicon. This process needs to be carried out at high temperatures, typically above 1800 degrees Celsius, to ensure that the silicon is effectively reduced. Finished product processing: Industrial silicon is cast from the electric furnace into silicon ingots, crushed and packaged, and finally becomes industrial silicon powder. At the same time, the gas spilled from the electric furnace is dedusted to recover the silica powder in it for other purposes. These three steps form the basic process for the production of silicon metal 1503. In this process, the selection and handling of raw materials, the control of smelting conditions, and the post-processing of finished products are all key factors that directly affect the quality and purity of the final product.

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