H. Razavizadeh,

[ 1 ] - THE LEACHING OF NEZAMABAD SCHEELITE WITH SULFURIC ACID

A new process for recovering scheelite ores comprises producing a concentrate from the ore, then leaching the concentrate with H_2SO_4 in the presence of H_3PO_4 and Na Cl at atmosphericpressure are discussed. Finely purification of the product will be described. The amounts of dissolution of tungsten in acid depend on the parameters such as time, temperature, type and concentration of acid an...