Now showing items 1-10 of 20
Kinetic and mechanistic studies on the biological and chemical leaching of nickel from sulphide ores.
The aim of this investigation was to extend the knowledge of the bacterial leaching of copper and zinc sulphides into the area of nickel sulphide leaching. By far the major portion of both theoretical and practical expertise ...
A study of an on-line recursive filter applied to a milling circuit.
No abstract available.
The lightning ground flash : an engineering study.
The thesis is concerned with a study of the electrical engineering parameters of the lightning ground flash - i.e. the statistical distributions of peak current amplitudes, discharge current waveform characteristics, and ...
An investigation into the Fischer-Tropsch synthesis over supported ruthenium in a stirred gas-solid reactor.
A stirred gas-solid reactor has been used to study the Fischer-Tropsch synthesis over a supported ruthenium catalyst. Detailed catalyst characterisations were conducted on both fresh and used catalyst samples and included ...
An investigation of a supersonic chemical reactor.
The development of a supersonic chemical reactor is examined. The central concept of such a reactor is that gases can be expanded to supersonic speed which will result in a decrease in their static temperature to the ...
Investigation into the effects of froth height in a flotation cell.
Abstract available in PDF file.
An investigation of the regeneration of carbonised catalyst pellets in a packed bed reactor.
No abstract available.
A study of processes occurring in flotation froths.
While the significant effect that the froth phase has on the performance of a flotation operation has recently been widely recognised, little work has been published which promotes an understanding of the physical processes ...
The development of instrumentation for the direct measurement of heat loss from man in a normal working mode.
Based on a theoretical analysis of the heat transfer process between the human body and its environment, graphs are presented for determining the theoretical skin surface temperatures and sweat rates as a function of the ...
Changes in the chemical composition of sugar cane (Saccharum officinarum) during storage.
An outline is given of the South African sugar industry, with particular emphasis on the unit operations which make up the industrial process for manufacturing sugar from cane. Current knowledge of the chemistry of ...