Cradle to Gate
Identity ID
8f2a5a2c-2f3d-4afc-9c5e-22b36fb49b0e
Materials
Associated ID
d3d27547-defb-418d-a9be-dba5eaaf52c1
Included activities starts
Included activities ends
Description
This dataset represents the "wet grinding tailings - magnetic separation - flotation process" for processing vanadium-titanium magnetite in Sichuan. It provides a life cycle inventory (cradle-to-gate) covering all activities related to the beneficiation production of vanadium-titanium iron concentrate, from crushing to the production of hematite concentrate. However, it does not include direct or indirect greenhouse gas emissions from the production of crushing equipment, magnetic separation equipment, personnel commuting, or daily office operations during the beneficiation process. The dataset was compiled from multiple data sources based on national standards including 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)'. It represents the average production level of processing vanadium-titanium magnetite to produce magnetite concentrate using the 'wet tailing rejection-magnetic separation-flotation process' in Sichuan.
Activity Description
This dataset describes the processing of vanadium-titanium magnetite in Sichuan Province using the 'wet tailings rejection-magnetic separation-flotation process', with the following production flow:
1. Wet Tailings Rejection
Process flow:
Slurry Preparation: Vanadium-titanium magnetite is mixed with water to form a slurry. The preparation of the slurry generally requires maintaining a certain solid concentration to optimize the efficiency of subsequent processing steps.
Tailings Rejection: The slurry is subjected to preliminary treatment via a wet magnetic separator. During magnetic separation, most of the gangue minerals are separated, and non-magnetic materials are discarded as tailings. This step effectively reduces the amount of material to be processed in subsequent stages, thereby lowering energy consumption and operational costs.
2. Magnetic Separation
Process flow:
Primary magnetic separation: The ore pulp, after wet tailings removal, enters the magnetic separation process, where magnetic iron minerals are separated using a wet magnetic separator. The primary stage mainly removes gangue minerals to increase the concentration of magnetic minerals.
Secondary magnetic separation: After the primary separation, the concentrate may undergo one or multiple additional magnetic separation steps to further purify the iron minerals and produce high-grade iron concentrate. This step is crucial for the final product quality.
3. Flotation
Process flow:
Pulp conditioning: Prior to flotation, the pulp is typically conditioned by adding appropriate flotation reagents (such as collectors, frothers, and modifiers) to effectively separate the target minerals from gangue minerals.
Flotation process: The conditioned pulp is fed into flotation cells, where target minerals such as titanium minerals are attached to air bubbles and floated to the surface, forming a froth product. The froth product is collected and further processed to produce titanium concentrate. Flotation tailings treatment: Flotation tailings typically require further processing, such as thickening and dewatering, before being safely disposed of in tailings storage facilities or utilized for comprehensive reuse.
Process Description
The iron concentrate in this dataset has a grade of 60%, 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 industries such as sintering and pelletizing plants, serving as a key raw material in steel production.
Time period
2022
2026
Geography
China,Sichuan
Geography comment
Forming Sichuan's average data through data merging from multiple sources
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The wet tailings rejection-magnetic separation-flotation process first removes gangue minerals through wet tailings rejection, then purifies iron minerals by magnetic separation, and finally recovers titanium minerals via flotation.