The objective of this work was to study the effect muscovite and biotite on flotation chalcopyrite molybdenite in seawater, use sodium hexametaphosphate silicate improve copper molybdenum recoveries. impact inorganic dispersants settling properties resulting tailings also studied. It found that depress with depressing being stronger at pH 11 than 9. Sodium increased recoveries seawater. These r...

To understand the role of phosphate ester dispersant, we investigated rheology a BaTiO slurry. For model case, coarse-grain molecular dynamics (CGMD) simulation was performed with butyral polymer didodecyl hydrogen (DHP) in toluene/ethanol solvent. By systematically analyzing effect DHP from an atomic-scale first principle and all-atom MD to microscale CGMD simulation, how adsorption dispersant...

We previously reported that amphiphilic peptides containing one Lys and two His in the hydrophilic domain—KHHAAAAAA7 (KHHA7)—formed ternary complexes with intermediate metal ions a poorly water-soluble anticancer drug—paclitaxel (Ptx)—which improved water dispersibility of Ptx. In this study, effect KHHA7 on cell viability is evaluated vitro using HeLa cells. The reduced by approximately 60%, s...

Bridging the gap between laboratory-scale experiments and actual oilfield operations is a complex task that requires compromise real (authentic) fluids model systems. Commercial products (i.e., asphaltene inhibitors dispersants) are often designed to target wide range of operating conditions compositions crude oils, which means performance becomes almost case-specific. Through Atomic Force Micr...

The mechanical properties of films of gels composed of a crude oil or corn oil and (R)-12-hydroxystearic acid are described using oscillatory rheology and water-surface waves. The integrity of these gel films are contrasted with those of neat oil films subjected to the same types of mechanical testing. The oil-based gels are thixotropic, and we quantify their post-recovery yield. A simple model...

Processing and manipulation of highly conductive pristine graphene in large quantities are still major challenges in the practical application of graphene for electric device. In the present study, we report the liquid-phase exfoliation of graphite in toluene using well-defined poly(3-hexylthiophene) (P3HT) to produce a P3HT/graphene composite. We synthesize and use regioregular P3HT with contr...