Cradle to Consumer
Identity ID
25afc6ea-7460-42af-b49a-edc7fefc63dd
Materials
Associated ID
4bed9b19-e257-4238-b1df-1a8cc6b7799e
Included activities starts
Included activities ends
Description
This dataset is a market dataset representing the consumption market of the region. The dataset includes the transport of the product from the gate to the consumption end, and the transport service is calculated based on the transport situation of the product in the region. This process refers to the production activity of producing 1 kg of micro-carbon ferrochrome by the electro-silicothermic process. Micro-carbon ferrochrome is a chromium-bearing ferroalloy with a carbon content ≤0.15%, mainly used for producing stainless steel, acid-resistant steel and heat-resistant steel, and serving as an alloying element additive or deoxidizer in steelmaking. This dataset includes the input of raw and auxiliary materials such as chromium ore, high-carbon ferrochrome, ferrosilicochromium and lime, and energy such as electricity; outputs include the product micro-carbon ferrochrome, waste dust and smelting slag (recoverable for comprehensive utilization), and emissions to air and water; infrastructure such as production equipment manufacturing and plant construction is not included within the dataset boundary. The data inventory is formed by merging multi-source data, and the data representativeness is optimized using industry standards such as the '3140 Ferroalloy Industry Coefficient Handbook'.
Activity Description
The electric-silicon-thermal process for producing micro-carbon ferrochrome is a method in which chromium ore, lime, and silicochromium alloy are charged into an electric arc furnace for smelting and refining of ferrochromium. The thermal energy required during the smelting process is derived from electric heating and the exothermic oxidation of silicon. The production operations for this product include raw material supply, smelting, finished product processing, dust collection system, and other auxiliary operations.
Process Description
Microcarbon ferrochrome is a chromium-containing ferroalloy made from chrome ore, lime, etc. through electric furnace smelting. The carbon content is ≤0.15%. It is mainly used to produce stainless steel, acid-resistant steel and heat-resistant steel, and is used as an alloying element additive or deoxidizer for steelmaking.
Time period
2015
2026
Geography
China,Sichuan
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The reducing agent used in the production of refined ferroalloys by the electrosilicothermic method is silicon alloy, and the heat energy required for smelting comes from silicothermic reaction and electrical energy. During the silicothermic reduction process, the order in which chromium oxides are reduced by silicon is: Cr2O3-CrO-Cr.