Cradle to Consumer
Identity ID
a9c0988e-df53-4119-8dfd-e351db601626
Materials
Associated ID
d568b7d8-7ca1-44fe-a483-5946e1d6e38b
Included activities starts
Included activities ends
Description
This is a market dataset representing the consumption market in the region. It includes transportation of the product from the factory gate to consumption, with transport services calculated according to the regional transportation conditions for the product.
Activity Description
The production process of industrial silicon using the electrothermal reduction method includes batching, feeding, submerged arc furnace, casting, demolding, and crushing processes.
Process Description
The silicon content of industrial silicon is required to be no less than 99%, primarily sourced from quartzite and vein quartz, and represents the first step in the crystalline silicon photovoltaic cell industry chain. The downstream products of industrial silicon are mainly polysilicon, organosilicon, and aluminum alloys, with end applications primarily in electronic devices, daily chemical products, photovoltaics, and semiconductors.
Time period
2010
2026
Geography
China,Shaanxi
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The production of metallurgical-grade silicon employs the carbothermal reduction method, in which carbonaceous reductants such as charcoal, sawdust, coal, or petroleum coke react with silica at high temperatures in an electric arc furnace. The carbothermal reduction reaction is represented by the chemical equation: SiO2 + 2C -> Si + 2CO, where the generated CO further reacts with oxygen to produce CO2, which is emitted into the atmosphere. The production process mainly consists of the following steps: batching, feeding, ore reduction furnace, casting, demolding, crushing, and packaging.