Browsing Chemical Engineering by Supervisor "Morgan, D.L."

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Browsing Chemical Engineering by Supervisor "Morgan, D.L."

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  • Effective solvent extraction of coal and subsequent separation processes 
    Haupt, Petronella (University of Pretoria, 2007-09-04)
    The Refcoal process is being developed to produce graphite from coal. Coal is dissolved in dimethylformamide (DMF) and sodium hydroxide (NaOH) is used as additive. After separation, the extracted coal (Refcoal) is precipitated ...
  • The recovery of purified coal from solution 
    Botha, Mary Alliles (University of Pretoria, 2009-07-15)
    A new process is being developed to produce graphite from prime coking coal. Coal is dissolved in dimethylformamide (DMF), on addition of sodium hydroxide. The minerals and undissolved coal are separated by centrifugation ...