Abstract
A mathematical model of the electro‐reduction furnace process (ERF process), for the production of ferronickel from laterite ores, has been tested at Larco's metallurgical plant at Larymna Greece. The theoretical predictions for the progress of the nickel reduction have been compared with the operational results. The tests were carried out in the ERF no. 2 of Larco's plant. The influence of the main process variables on the nickel recovery and nickel losses in the ERF slags have been investigated in conjunction with the variation of the analysis of the feed and the nickel content of the metal bath. The further application of the model to the metallurgical practice is discussed. According to the predictions of the model the further development of the process in the direction of the production of low‐nickel ferronickel (Ni < 15%) is analyzed. The advantages of the production of low‐nickel ferronickel are presented and the possibility of its straight conversion to nickel‐bearing steel‐grades is discussed.
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