| 摘要 |
<p>The present invention relates to a method for manufacturing a manganese alloy, said method comprising the steps of: heating at least iron oxide and manganese oxide together with carbon in a furnace; extracting a manganese alloy from said furnace; cleaning furnace gas generated in the furnace in a wet scrubber to form clean furnace gas and a manganese containing composition; adding acid to said manganese containing composition to form a mixture with a p H of 2-6; adding a precipitating agent to said mixture for, at least partly, precipitating zinc from said mixture; separating non-dissolved particles, including at least a portion of the precipitated zinc, from said mixture to form a liquid solution containing dissolved manganese; forwarding at least a portion of the manganese content of said liquid solution as a source of manganese to a furnace for being heated together with at least iron oxide and carbon for forming a manganese alloy.</p> |
