Cradle to Gate
Identity ID
2d70e061-845e-4109-ab0f-4c23a3f46f32
Materials
Associated ID
f7d49560-991d-4c8b-ab53-63db810c2497
Included activities starts
Included activities ends
Description
This dataset represents the life cycle inventory of iron ore processing through mineral beneficiation in Liaoning, covering the entire process from crushing to the production of hematite concentrate (cradle-to-gate). It includes all activities related to iron concentrate beneficiation production, but excludes direct or indirect greenhouse gas emissions from the production of crushing equipment, magnetic separation equipment, personnel travel, and daily office operations during the beneficiation 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)', and is representative of the average production level of iron ore beneficiation in Liaoning.
Activity Description
This dataset describes iron ore beneficiation in Liaoning. Magnetic separation is the primary technology used in Liaoning's iron ore beneficiation, 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 typically required to improve the yield and grade of iron concentrate.
The entire production process of iron ore beneficiation includes:
Crushing and grinding: crushing and grinding the ore 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): Sieving to control mineral particle size and filtration to remove moisture, producing high-grade iron concentrate.
Tailings management: Proper handling of tailings to minimize environmental impact.
Process Description
The iron concentrate in this dataset has a grade of 66.98%, belongs to transition metals, and is the primary product of the mineral beneficiation process. Iron concentrate is typically in powder form and is widely used in downstream processing at sintering and pelletizing plants, serving as a key raw material in steel production.
Time period
2022
2026
Geography
China,Liaoning
Geography comment
Formation of Liaoning's average data through merging data from multiple sources
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
This dataset describes the beneficiation of iron ore. The beneficiation process aims to separate valuable iron minerals from iron ore, remove impurity minerals, thereby increasing the grade, and providing high-quality raw materials for subsequent smelting processes.