Process for the preparation of vanadium, vanadium alloys or vanadium compounds

摘要

A process for the preparation of vanadium, vanadium alloys, or vanadium compounds from vanadium-containing slags by heating these slags in a reaction furnace under the influence of sodium carbonate and oxygen at a temperature between 600 DEG and 800 DEG C and subsequently leaching the reaction product with water so that the resultant vanadate enters into solution and is then processed to the desired vanadium product in a manner known per se, characterized in that an amount of sodium carbonate is used at which the ratio (quantity by weight of sodium carbonate/quantity by weight of vanadium calculated as vanadium pentoxide) IS AT LEAST 1.1 AND DOES NOT EXCEED 4.