Premium
Plasmachrome process for ferrochrome production – thermochemical modelling and application to process data
Author(s) -
Srinivasan Nadipur Sampath,
Santén Sven,
Staffansson LarsIngvar
Publication year - 1987
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.198700852
Subject(s) - ferrochrome , raw material , chromium , process (computing) , chemistry , metallurgy , process engineering , mechanical engineering , thermodynamics , engineering , materials science , physics , computer science , operating system , organic chemistry
Plasmachrome is a new process for the production of ferrochrome and chargechrome using a variety of chromium bearing materials. In this paper a thermochemical model has been developed for the Plasmachrome process. The model is based on the equilibrium approach and considers mass and heat balances for the shaft and smelting zone of the reactor. A review of available literature has been made and gaps in thermodynamic data of relevance to the process have been identified. The model has been applied to available plant data for the process. Calculations show a good agreement between model predictions and plant data. It has been shown that the equilibrium approach can be effectively used for process analysis. The model has been used to study the possible effect of different types of material additions on process performance. The results indicate the process to be flexible, permitting many process variations to enable optimal use of different raw materials.