Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Engineering
Electrochemical Approaches To Life-Support Resources In Space Missions And Nuclear Technologies: Hydrogen Peroxide And Uranium Films, Armando Manuel Pena-Duarte
Electrochemical Approaches To Life-Support Resources In Space Missions And Nuclear Technologies: Hydrogen Peroxide And Uranium Films, Armando Manuel Pena-Duarte
Open Access Theses & Dissertations
Space race has developed several technological advances that have achieved and continue to achieve the success of space missions in the aerospace timeline. Currently, the number of space technical and scientific innovations is still growing––demanding new materials and developments for extreme performing applications of fuel cells, batteries, supercapacitors, and systems of nuclear energy. Space missions require life-support solutions, auto-sustainable closed-loop living environments, cleaning and sanitizing solutions against pathogens, and safe nuclear-based resources of energy––with fissile materials with well-controlled dimensions within the core fuel elements. Likewise, to guarantee safety conditions, reduce costs, and facilitate operational logistics, space missions must reduce their …
Determination Of Oxidation-Reduction Potential And Iron Chemistry For Solutions Generated During The Hydrometallurgical Extraction Of Copper, Jiahao Xu
Open Access Theses & Dissertations
Oxidation-reduction potential (ORP) based on iron chemistry is one of the key operating parameters during the hydrometallurgical extraction of copper. A novel ORP equation was developed previously only based on the variables of temperature and nominal ferric/ferrous ratio to predict the redox potential of the quaternary H2SO4-Fe2(SO4)3-FeSO4-H2O system. However, its applicability in more complex acidic iron sulfate solutions during the hydrometallurgical extraction of copper with different temperatures, acidic concentration, cupric concentration, nominal ferric/ferrous ratio, and total and l iron concentration has not been extended and validated. This work evaluates the applicability of novel oxidation-reduction potential equation in the H2SO4-Fe2(SO4)3-FeSO4-H2O and …