Browsing Doctoral Degrees (Chemical Engineering) by Title
Now showing items 55-74 of 92
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Neural network modelling and prediction of the flotation deinking behaviour of complex recycled paper mixes.
(2011)In the absence of any significant legislation, paper recycling in South Africa has grown to a respectable recovery rate of 43% in 2008, driven mainly by the major paper manufacturers. Recently introduced legislation will ... -
Neural network models for leukaemia.
(2009)Artificial neural networks (ANN) can detect complex non-linear relationships between independent and dependent variables. Properly trained ANNs have repeatedly demonstrated superior predictive accuracy to other predictive ... -
Optimal design of a secondary milling circuit for treating chromite-rich UG-2 platinum ores.
(2011)Extraction of platinum group elements (PGE) is a major source of revenue in South Africa and the reserves represent about 75 per cent of world reserves. Most of the remaining Platinum Group Mineral (PGM) reserves are located ... -
Performance studies of the tubular filter press.
(1992)The tubular filter press is a novel tubular configured filter press for the filtration or dewatering of sludges. The unique features of the filter press are: (i) during the cake deposition cycle, cake is deposited on ... -
Precipitation and valorisation of lignin obtained from South African kraft mill black liquor.
(2016)Abstract available in PDF file. -
The prediction of multicomponent ion exchange equilibria with particular reference to the system involved in the recovery of uranium.
(1976)The problem of predicting the general ion exchange equilibria pertaining to systems of industrial significance is generated by the multicomponent nature of such systems and the nonidealities which may be present in both ... -
Prediction of the physical properties of pure chemical compounds through different computational methods.
(2014)Liquid thermal conductivities, viscosities, thermal decomposition temperatures, electrical conductivities, normal boiling point temperatures, sublimation and vaporization enthalpies, saturated liquid speeds of sound, ... -
The predictive modelling of the performance of a crude oil fractionator in terms of gas chromotographic characterization.
(1973)No abstract available. -
Predictive solvent and anti-solvent selection method for pharmaceutical and biological products and intermediates.
(2017)Abstract available in pdf. -
Purification of nitrogen trifluoride (nf3) via physical separation.
(2020)Abstract available in the PDF. -
Pyrolysis-gas chromatography/mass spectrometry study of chromophores in dissolving wood pulp.
(2018)Dissolving wood pulp (DWP) is bleached wood pulp that contains high cellulose content, typically >95%. The bleaching is done to remove remnants of lignin and hemicelluloses that are not necessary for the final DWP. The ... -
A real time fluorescent particle counter for atmospheric dispersion studies.
(1985)No abstract available. -
The recovery of sodium hydroxide from cotton scouring effluents.
(1994)This dissertation describes the characterisation of, and development of a novel integrated waste management strategy for, hydroxide scouring effluents produced during cotton processing. Such effluents are typical of ... -
Representation/prediction of physico-chemical properties of ionic liquids through different computational methods.
(2014)The “green” industrial chemical processes are of great interest to scientists and engineers due to elimination of environmental pollution, especially air pollution. One of the most important air pollutants is class of ... -
Robust equipment for the measurement of vapour-liquid equilibrium at high temperatures and high pressures.
(2004)In this work VLE data was measured on three different pieces of equipment. Measurements were undertaken in the laboratory of Professor Gmehling in Oldenburg, Germany using two different static cells and in the Thermodynamics ... -
Scientific and management support for ventilated improved pit latrines (VIP) sludge content.
(2014)Providing adequate sanitation to all in the form of VIP latrines as proposed by the South African Government Strategic Framework for Water Services does not end with building toilets. All municipalities need to plan for ... -
The solid state reduction of chromite.
(1989)High carbon ferrochromium serves as the main chromium source for almost all chromium containing steel alloys. The traditional method for the production of high carbon ferrochromium via the reduction of chromite using ... -
Solubility studies of carbon dioxide in novel hybrid solvents using a new static synthetic apparatus.
(2019)The use of alkanolamine solutions in removing acidic gases from natural gas is common in the industry, but such technologies have disadvantages which include amongst others, solvent loss, corrosion and high heat consumption. ... -
Spatio-temporal dynamics of heterogeneously distributed populations.
(2003)No abstract available. -
A study of an on-line recursive filter applied to a milling circuit.
(1975)No abstract available.