The performance of mineral grinding circuits strongly affects downstream processes such as flotation and cyanidation, and grinding is often the single most expensive unit operation. Hence, optimization efforts must be made on a regular basis to maintain and improve its…

The work performed can be divided into three stages. The first stage involved the development and study of a transparent heat pipe which served to illustrate the principles of heat pipes, specifically, thermosyphons or wickless heat pipes. The second stage…

The SAG Power Index test (SPI) is a tool for forecasting autogenous mill performance. Much effort has been directed towards the development of the process models relating SPI to throughput estimates, but little has been directed towards ore body modeling.…

Solid residues are generated at various stages of metal production. Some of these residues still contain significant quantities of metals. In determining possible process routes for residues a detailed knowledge of the mineralogy (i.e. the minerals or phases present) is…

The design of thermomechanical processing schedules to control microstructures requires the knowledge of the austenite-to-ferrite transformation start temperature (Ar$ sb3$). Further, in curved mold continuous casting, transverse cracking occurs during the unbending procedure to straighten the solidified curved strand, and…

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…