Cradle to Gate
Identity ID
e1f61db6-44bc-49f4-a7d6-b9f7c44994aa
Materials
Associated ID
b68eba23-be43-489c-82b0-25397b9d74b9
Included activities starts
Included activities ends
Description
Quartzite for metallurgical use can serve as a raw material in the smelting of ferroalloys such as industrial silicon, be used in the chemical industry for the production of silicon compounds and silicates, and also function as a packing material in sulfuric acid towers. This dataset includes the entire process of quartzite mining, crushing, and screening, as well as fuel consumption for internal transportation, with tire wear and tear taken into account, linearly extrapolated based on the average tire wear of typical open-pit mining plants in China. Infrastructure such as production equipment and plant construction is not included within the system boundary of the dataset, nor is wastewater accounted for, because the water used in the mining process is primarily for dust suppression, remains non-contaminated, and infiltrates directly into the ground; thus, wastewater is negligible. The life cycle inventory is formed by consolidating data from multiple sources and has been adjusted and supplemented with reference to industry statistics, standards, and emission factor handbooks. The open-pit mining and beneficiation process for quartzite includes procedures such as blasting, mechanical excavation, transportation, crushing and screening, drying, and other procedures.
Activity Description
The mining and beneficiation process of silica sand includes blasting, mechanical excavation, transportation, crushing and screening, drying, and other procedures.
Process Description
The SiO2 content in silica ranges from 98.02% to 98.52%, along with 0.97% to 1.04% Al2O3, 0.62% to 0.67% Fe2O3, 0.034% to 0.043% CaO, and 0.003% P2O5. Metallurgical-grade silica is used as a raw material in the smelting of industrial silicon and other ferroalloys, for the preparation of silicon compounds and silicates in the chemical industry, and also as packing material in sulfuric acid towers.
Time period
2011
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The open-pit mining and beneficiation process of silica includes procedures such as blasting, mechanical excavation, transportation, crushing and screening, drying, and other procedures.