Cradle to Gate
Identity ID
8231c700-5278-45b3-84d5-c81a7c5cbc38
Materials
Associated ID
f7d49560-991d-4c8b-ab53-63db810c2497
Included activities starts
Included activities ends
Description
This dataset represents the processing of iron ore in China through mineral beneficiation. It covers the entire life cycle inventory (cradle-to-gate) from crushing to the production of hematite concentrate, including all activities associated with iron concentrate beneficiation production, but excluding the production of crushing equipment, magnetic separation equipment, personnel travel, and daily office operations during the beneficiation process, along with their direct or indirect greenhouse gas emissions. 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 China.
Activity Description
This dataset describes the beneficiation of iron concentrate, where magnetic separation is the primary technology used in iron ore processing, 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 concentrate beneficiation includes:
Crushing and grinding: crushing and finely grinding the ore to liberate iron minerals from gangue.
Magnetic separation (optional): using low- 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 moisture is removed by filtration to obtain high-grade iron concentrate.
Tailings management: Properly manage tailings to minimize environmental impact.
Process Description
The iron concentrate in this dataset has a grade of 67.07%, belongs to transition metals, and is the primary product of the mineral processing stage. Iron concentrate is typically in powder form and is widely used in downstream processing technologies such as sintering and pelletizing plants, serving as a key raw material in steel production.
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 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.