PROCESS OF RECOVERING NON-FERROUS METAL VALUES, ESPECIALLY NICKEL, COBALT, COPPER AND ZINC, BY USING MELT AND MELT COATING SULPHATION, FROM RAW MATERIALS CONTAINING SAID METALS

摘要

The invention relates to a process for recovering non-ferrous metal values such as nickel, cobalt, copper, zinc, manganese and magnesium from material containing said metals, by converting the non-ferrous metal values into sulphates by using melt and melt coating sulphation and recovering them as metal compounds by a process entity based on a melt and melt coating sulphation.