Abstract
In our previous study, a NaClO oxidized wheat starch (Ox 5/120) showed promising selectivity between chalcopyrite and graphite flotation compared to the native counterpart. Building from that, this paper presents a systematic investigation conducted on a series of NaClO oxidized starches in a quest to minimize chalcopyrite depression during flotation. Active chlorine of different concentrations was used in the synthesis of the starch derivatives (Ox 1/120, Ox 5/120 and Ox 10/120). Each chlorine level varies the degree of starch oxidation with respect to depolymerisation leading to new orders of molecular weight and size distributions of the polymer fractions. This is in conjunction with the proportion and type of carbonyl functional groups generated. A combination of adsorption isotherms and nanoscale characterisation using AFM revealed dissimilar adsorbability and visual morphological features, providing new insights into the depressive actions of oxidized starches during chalcopyrite flotation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
