Cradle to Gate
Identity ID
1005aa2b-fdf3-4d7d-b44b-934af1c34c01
Materials
Associated ID
f8923099-b572-44ed-9c34-9a0eb0896b1f
Included activities starts
Included activities ends
Description
This dataset represents the processing of magnetite ore in China through mineral beneficiation processes. It covers a life cycle inventory (cradle-to-gate) from crushing to the production of hematite concentrate, including all activities related to iron concentrate beneficiation production, but excluding the production of crushing equipment, magnetic separation equipment, personnel commuting, and direct or indirect greenhouse gas emissions from daily office operations during the beneficiation production process. The dataset was compiled from multiple data sources based on national standards such as the 'Manual of Production and Emission Coefficients for the Iron Ore Mining and Processing Industry (0810)', 'Emission standard of pollutants for mining and mineral procressing industry (GB 28661-2012)', 'Cleaning production standard Iron ore mining and mineral processing industry', and 'The norm of the energy consumption per unit product of iron ore dressing(GB31337-2014)', representing the average production level of magnetite ore dressing in China.
Activity Description
This dataset describes magnetite ore dressing, where magnetic separation is the primary technology used in iron ore beneficiation in China, especially suitable for magnetite and vanadium-titanium magnetite. For non-magnetic or weakly magnetic ores such as hematite, limonite, and siderite, a combination of processes including roasting, gravity separation, high-intensity magnetic separation, and flotation is generally required to enhance the output and grade of iron concentrate. The entire production process of iron ore beneficiation includes crushing and grinding: breaking the ore into smaller particles and grinding it finely to liberate iron minerals from gangue. Magnetic separation (optional): using low-intensity and high-intensity magnetic separators to separate magnetic iron minerals (e.g., magnetite, hematite). Flotation and gravity separation (optional): For non-magnetic minerals or ores with high impurity content, further purification is carried out through flotation or gravity separation processes. Screening and filtration (optional): Mineral particle size is controlled by screening, and water is removed by filtration to obtain high-grade iron concentrate. Tailings management: Proper handling of tailings to minimize environmental impacts.
Process Description
The iron concentrate grade in this dataset is 67.2%, which is the main product of the mineral beneficiation process. The primary component of iron concentrate is magnetite (Fe₃O₄). Due to the good magnetic properties of magnetite, the content of impurities such as silicon, phosphorus, and sulfur in the ore is low, with strict impurity control, making it suitable for iron and steel smelting.
Time period
2022
2026
Geography
China
Geography comment
Chinese average data are formed by merging multiple provincial datasets.
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
This dataset describes the beneficiation of magnetite ore, a process aimed at separating valuable iron minerals from iron ore, removing impurity minerals, thereby upgrading the ore quality and providing high-quality raw material for subsequent smelting processes.