Ferroalloys

The CLU converter process, which is a further development of the AOD process, is very suitable for ferroalloy refining. In the CLU process steam is used as an additional process gas. The use of steam makes the CLU process flexible with several benefits such as reduced consumption of high cost argon gas and possibilities for improved energy management in the converter.

Medium carbon ferrochrome and ferromanganese can easily be produced in the CLU process due to the excellent opportunities for temperature control without alloy dilution. This is a valuable feature in manganese production where temperature control is vital in order to minimize manganese vaporization. The converter process also allows for a broader product range to be made with further refined products such as low carbon ferrochrome and ferromanganese.

Based on our vast experience from the steel industry UHT offers complete converter equipment and process control systems for refining of ferroalloys. By the UHT converter automation system, UTCAS, designed and developed for converter refining management the process are run fully automatic. Each converter plant is designed based on the process concept involving local conditions, planned product range, market conditions etc.