This study aimed to explore concentration of a low grade sulfide-oxide lead-zinc sample containing 2.3% Pb, 1.91% Zn taken from Changarzeh mine, South Natanz, Iran. The effects of different parameters such as type and dosage of collector, milling retention time, dosage of sodium sulfur and its preparation time, application of sodium silicate, pH and solid content were investigated in relation t...

Palygorskite (Pal) is a natural clay mineral with fibrous morphology and high surface area. Depending on the geological origin, it presents impurities, such as quartz carbonates, which can harm some of its properties. Therefore, this work seeks to define viable methodology for purification Brazilian Pal. Two types mixing processes (sonication milling) two dispersing agents (sodium silicate sodi...

Spherical silica particles are typically made via Stöber processes. However, these processes environmentally unsustainable. Here, we report a process to synthesise spherical in more sustainable way using sodium caseinate. Initial experiments showed that caseinate can replace the typical industrial structural directing agents used produce particles. Particles of 124 nm size were produced with 20...

Malachite green dye waste is one of the wastes that genotoxic and carcinogenic to humans. Biosorption an effective process for removal recovery from aqueous solutions. In this study, biomass used was a langsat shell which had been immobilized with sodium silicate. The obtained biosorbents were characterized using Fourier Transform Infra-Red (FTIR). research, we determine effect dosage on biosor...

We use inelastic neutron scattering and molecular dynamics simulation to investigate the interplay between the structure and the fast sodium ion diffusion in various sodium silicates. With increasing temperature and decreasing density the structure factors exhibit an emerging prepeak around 0.9 A(-1). We show that this prepeak has its origin in the formation of sodium rich channels in the stati...

present for the formation mechanism. A famous •gPfeffer's semi-permeable membrane•h made of potassium ferrocyanide and copper sulfate in unglazed pottery cylinder by W. Pfeffer in 1877 is quite different from an artificial semi-permeable membrane at present, which is organized only by handling of extending high molecular substances, that is, collodium, cellophane, and various synthetic resins. ...