CLEAN AND EFFICIENT ROASTING SOLUTIONS WITH OUTOTEC'S CUTTING-EDGE TECHNOLOGY

摘要

A significant area of Outotec's business involves fiuidized bed roasting. With several decades of experience, more than 300 reference plants and strong R&D capabilities, the company provides several industries with optimum processing solutions. Applications include oxidation and sulfation of sulfides found in copper, pyrite and zinc concentrates. Gold production and de-arsenifying roasting are also within this scope. This paper describes the latest furnace developments and includes novel trends. Moreover, hot and wet gas cleaning systems are examined focusing on unit operations related to the removal of components such as dust, SO_2 for sulfuric acid production, fumes, halides, Hg, hydrocarbons, nitrous oxides and metals.