As part of the environment St-Lawrence River, Canadian Coast Guard team and URPEI research at Ecole Polytechnique de Montreal carried out a numerical simulation based on Eulerian-Lagrangian formulation for dispersion oil-mineral aggregates (OMA) in turbulent flow produced by propeller ship. This study is larger project to assess effectiveness using fine clay minerals as natural dispersant petro...

ABSTRACT The application of dispersants to an oil-slick is a key remediation tool and thus understanding its effectiveness vital. Two in situ oil slicks were created the North Sea (off coast Netherlands), one left natural processes whilst dispersant (Slickgone NS) was applied other. GC-MS analysis seawater from surface slick, at 1.5 5 m below revealed only two samples with measurable hydrocarbo...

In this research, two series of ultra-low cement high alumina refractory castables containing 0 and 0.4 wt.% of nano-titania were prepared using different amounts of polycarbonic acid (DOLAPIX FF 26) as a dispersant. Several characteristics including microstructure, flowability, mechanical strength, bulk density and apparent porosity of the samples were analyzed. The results showed that the opt...

In the present research, the aqueous suspensions of nano-sized YSZ particles were prepared using a common and available dispersant (Dolapix CE64) at different pH values and their stability were evaluated through the sedimentation height, viscosity measurement, and microstructural observation. Different amounts of dispersant were tested and the optimum percentage was examined by measuring the vi...

Nanoparticles have as characteristics super sliding, extreme pressure, self-healing, etc., which can improve the friction reduction and anti-wear performance of sliding components, when used lubricating oil additives. Nano-copper particles a good synergistic effect with other antifriction agents, antioxidants grease additives because their low shear strength grain boundary slip effect, showing ...