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Browsing Chemical Engineering by Author "Puts, Gerard Jacob"
Now showing items 1-12 of 12
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Puts, Gerard Jacob; Venner, W.V. (Victor); Ameduri, Bruno; Crouse, Philippus L. (American Chemical Society, 2018-08)The solution copolymerizations of tetrafluoroethylene (TFE) with isobutyl vinyl ether (iBuVE), using both conventional radical and RAFT/MADIX methods, are presented. O-Ethyl-S-(1-methyloxycarbonyl)ethyl xanthate and benzoyl ...
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Grobler, N.J.M. (Nicolas); Bissett, H.; Puts, Gerard Jacob; Crouse, Philippus L. (IOP Publishing, 2018)The sheath gas plays an important role in inductively-coupled plasmas (ICPs) in preventing thermal damage to the side wall of the torch. The sheath gas (hydrogen in our case) is more difficult to ionise than argon (the ...
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Puts, Gerard Jacob (University of Pretoria, 2014)This dissertation relates the results of the preliminary investigation into the catalytic interaction of PTFE with various inorganic materials, with the primary goal of find catalysts that will greatly increase the yield ...
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Venner, W.V. (Victor); Puts, Gerard Jacob; Crouse, Philippus L. (Elsevier, 2019-01)PTFE homopolymer synthesised using ammonium persulfate initiator discolours at sintering temperatures of approximately 380 °C. No report on this phenomenon is available in the open literature. To shed light on the problem, ...
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Puts, Gerard Jacob; Crouse, Philippus L. (Elsevier, 2014-12)The thermal decomposition of PTFE intimately mixed with the solid sulfates and fluorides of selected metals (Al2(SO4)3, ZnSO4, CuSO4, NiSO4, CoSO4, FeSO4, AlF3, CuF2, NiF2, CoF2, FeF2 and MnF2) was investigated by TGA-FTIR. ...
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Nhlabathi, T.N.; Nel, J.T.; Puts, Gerard Jacob; Crouse, Philippus L. (Elsevier, 2012-11-21)Zircon is notoriously inert. Aggressive processing methods such as alkaline fusion are conventionally used to extract zirconium values from the mineral. In this study results are presented with respect to microwave ...
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Van Laar, Jean H.; Slabber, Johan F.M.; Meyer, Josua P.; Van der Walt, Izak J.; Puts, Gerard Jacob; Crouse, Philippus L. (Elsevier, 2015-04)A microwave plasma process operating at atmospheric pressure was developed for the synthesis of SiC nanoparticles. The process utilizes methyltrichlorosilane (MTS) as precursor, acting as both carbon and silicon source, ...
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Puts, Gerard Jacob; Crouse, Philippus L.; Ameduri, Bruno M. (American Chemical Society, 2019-01)This Review aims to be a comprehensive, authoritative, and critical review of general interest to the chemistry community (both academia and industry) as it contains an extensive overview of all published data on the ...
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Puts, Gerard Jacob; Lopez, Gerald; Ono, Taizo; Crouse, Philippus L.; Ameduri, Bruno M. (Royal Society of Chemistry, 2015)Results of the radical copolymerisation of chlorotrifluoroethylene (CTFE) with isobutyl vinyl ether (iBuVE) initiated by ∙CF3 radicals generated by β-scission of perfluoro-3-ethyl-2,4-dimethyl-3-pentyl radical (PPFR) at ...
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Puts, Gerard Jacob (University of Pretoria, 2017)At present, the explosives industry in South Africa makes extensive use of heavy metal oxide pyrolants in the time-delay elements of detonators used in mining activities. There is a drive towards the use of safer and ...
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Makaringe, Nkateko Petra; Van der Walt, Izak I.J.; Puts, Gerard Jacob; Crouse, Philippus L. (Brazilian Journal of Thermal Analysis, 2017-03)The pyrolysis characteristics of four biomass materials (bamboo, Napier grass, pine and peach pips) were studied in an inert atmosphere using a simultaneous TGA-FTIR instrument. The behaviour of these materials under ...
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Oosthuizen, E.; Puts, Gerard Jacob; Crouse, Philippus L. (AOSIS Open Journals, 2020-08-25)’n Proses vir die kleinskaalse laboratoriumvervaardiging van fluoorgas met CaF2 as die invoer-reagens is ontwerp en in bedryf gestel. Die eerste stap maak gebruik van ’n lotreaktor wat CaF2 na anhidriese HF omskakel deur ...
Now showing items 1-12 of 12