The subject of this work is gallium extraction from sulphate solutions--an additional source of this metal from hydrometallurgical zinc production--with organophosphorus acid reagents: di-2-ethyl hexyl phosphoric acid (D2EHPA) and OPAP, a mixed extractant consisting of mono- and di-octyl phenyl phosphoric…

Continuous temperature measurement of molten steel in new as well as existing steelmaking processes is not always feasible with current technology. However, it is a well known fact that molten steel temperature, especially during the continuous casting operation, can have…