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Browsing Chemical Engineering by Type "Postprint Article"
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Dehouche, Nadjet; Kaci, Mustapha; Focke, Walter Wilhelm; Van der Merwe, Liezel
(Wiley, 2022-08)
The effect of various clays nanofillers on the photo-oxidation of polyamide 11 (PA11) has been investigated by accelerated ultraviolet (UV) test up to 780 h. Organo-modified montmorillonite, halloysite nanotubes, and ...
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Nyangiwe, Nangamso Nathaniel; Ouma, Cecil Naphtaly Moro
(Elsevier, 2020-03)
The nature of the interaction of low molecular weight natural organic matter (NOM) with the Ag (1 1 1) surface is of crucial importance in the environment. The low molecular weight organics used in this study are formic ...
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Birungi, Z.S. (Zainab); Chirwa, Evans M.N.
(Elsevier, 2015-12)
Thallium (Tl) is a highly volatile and toxic heavy metal regarded to cause pollution even at very low con-centrations of several parts per million. Despite the extremely high risk of Tl in the environment, limitedinformation ...
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Gnanasekaran, Dhorali; Massinga, Pedro Horacio; Focke, Walter Wilhelm
(Nova Science Publishers, 2015)
The paper presents a complete conspectus of ethylene-co-vinyl acetate (EVA)
nanocomposites based on different types of nanostructured materials incorporated into
EVA polymers. The three types of nanostructured materials, ...
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Guo, Shasha; Focke, Walter Wilhelm; Tichapondwa, Shepherd Masimba
(Wiley, 2020-04)
Please abstract in the article.
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Makgato, M.H. (Matlou Hector); Moitsheki, L.J.; Shoko, Lay; Kgobane, B.T. (Bethuel Lesole); Morgan, D.L.; Focke, Walter Wilhelm
(Elsevier, 2009)
Coal extraction experiments were conducted using a coal, containing ca. 10% ash, from the Tshikondeni mine in South Africa. This coal dissolves only to a limited extent in pure polar aprotic solvents such as dimethylformamide ...
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Massinga, Pedro Horacio; Focke, Walter Wilhelm; De Vaal, Philip L.; Atanasova, Maria Todorova
(Elsevier, 2010-07)
Organo-bentonites containing quaternary ammonium surfactants were prepared using purified bentonite from the Boane deposit in Mozambique. The intercalation was effected by intimate mixing of the surfactants into a concentrated ...
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Focke, Walter Wilhelm; Moyo, Lumbidzani; Labuschagne, F.J.W.J. (Frederick Johannes Willem Jacobus); Hoosen, N.G.; Ramjee, Shatish; Saphiannikova, M.
(Elsevier, 2014-02)
Stearate intercalated layered double hydroxide was synthesized by reacting the corresponding
carbonate form with a large excess of stearic acid. Thermal analysis, FTIR, XRD and SEMEDS
characterization indicated the ...
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Arinkoola, A.O.; Jimoh, M.O.; Salawudeen, T.O.; Daramola, Michael Olawale
(Elsevier, 2022)
Please read abstract in the article.
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Iwuozor, Kingsley O.; Akpomie, Kovo G.; Conradie, Jeanet; Adegoke, Kayode Adesina; Oyedotun, Kabir Oyeniran; Ighalo, Joshua O.; Amaku, James F.; Olisah, Chijioke; Adeola, Adedapo Oluwasanu
(Elsevier, 2022-10)
Aromatic organoarsenic compounds (AOCs) are synthetic arsenic-based compounds released into the environment through anthropogenic activities. Due to their high solubility and mobility in aqueous media, AOCs as well as their ...
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Du Toit, Elizabeth Louisa; Joubert, Rita; Saayman, Francois; Nicol, Willie
(American Chemical Society, 2014-01)
The wetting efficiency and solid liquid mass transfer coefficient was measured separately and
simultaneously using the electrochemical cell technique while varying the superficial liquid
velocity and hydrodynamic state ...
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Nzama, Nosipho; Stassen, Lize; Crouse, Philippus L.
(Springer, 2019-11)
Please read abstract in the article.
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Steyn, Christiaan Weyers; Sandrock, Carl
(Elsevier, 2013)
Autogenous (AG) milling is utilised around the world for particle size reduction. The system exhibits
highly non-linear behaviour in addition to being subject to unmeasured variability associated with most
ore bodies. ...
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Agbebi, Rotimi; Sandrock, Carl
(Elsevier, 2015-06)
An existing batch precipitation reactor in the mining industry was modelled from first principles using MATLAB S-function language and wrapped into Simulink custom blocks. The model was validated with open loop simulations ...
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Sibanda, Mthokozisi Mayibongwe; Focke, Walter Wilhelm; Braack, L.E.O.; Leuteritz, Andreas; Brünig, Harald; Tran, Nguyen Hoai An; Wieczorek, Florian; Trümper, Wolfgang
(Elsevier, 2018-10)
Core-sheath structured fibres were developed for application as part of an alternative malaria vector control intervention aimed at reducing outdoor malaria transmission. The fibres were prepared by melt spinning of high ...
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Focke, Walter Wilhelm; Van der Westhuizen, Isbe; Oosthuysen, Xander
(Elsevier, 2016-06)
It is conventional to quantify the oxidative stability of oils and biodiesel through an induction time deter-mined by a Rancimat instrument. European Standard EN 14112 for the Rancimat method describes twoprocedures for ...
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Chirwa, Evans M.N.; Lutsinge-Nembudani, Tshilidzi B.; Fayemiwo, Oluwademilade Martha; Bezza, Fisseha Andualem
(Elsevier, 2021-03)
Biomineralisation of polycyclic aromatic hydrocarbons (PAHs) and other toxic organic pollutants to CO2 and H2O is one of the most environmentally friendly and economically efficient options for treatment of deleterious ...
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Sadare, Olawumi Oluwafolakemi; Daramola, Michael Olawale
(American Chemical Society, 2021-09)
Please read abstract in the article.
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Kabong, M.A. (Mwamb); Focke, Walter Wilhelm; Du Toit, Elizabeth Louisa; Rolfes, Heidi; Ramjee, Shatish
(Elsevier, 2020-01-20)
Please read abstract in the article.
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Govender, Desania R.; Focke, Walter Wilhelm; Tichapondwa, Shepherd Masimba; Cloete, William Edward
(American Chemical Society, 2018-05)
The energetics of cast calcium sulfate dihydrate–aluminum thermites were investigated. The casts were prepared from water slurries with a solids content below 65 wt %. The base case thermite comprised 60 wt % calcium sulfate ...