Colloidal nanosilica is currently being produced by various methods which are mainly high energy intensive and/or not environmentally friendly. It is therefore essential to develop new energy-efficient and environmentally friendly technologies. This paper introduces a new ultrasound assisted route based on alkali leaching of silica fume for synthesis of colloidal silica nanoparticles. The ef...

Cluster, correlation, and multivariate regression analyses were used to rationalize the effects of grain composition, starch fine structure, and leaching characteristics on cooked rice texture (hardness and stickiness). The head rice grain composition of 23 U.S. long-grain cultivars was evaluated in terms of apparent amylose content, crude protein, and surface lipids. Starch samples were prepar...

BACKGROUND Transesterification catalyzed by solid base catalyst is a brilliant technology for the noble process featuring the fast reaction under mild reacting condition in biodiesel production. Heterogeneous base catalysts are generally more reactive than solid acid catalysts which require extreme operating condition for high conversion and biodiesel yield. In the present study, synthesis of b...

NiAl layered double hydroxides (LDHs) are promising bifunctional catalysts comprising tunable redox and Lewis acidic sites. However, most studies of LDH employ alkali hydroxide carbonate precipitants which may contaminate the final catalyst leach into reaction media. Here, we report an alkali-free route to prepare NixAl LDHs with a composition range x = 1.7 4.1 using (NH4)2CO3 NH4OH as precipit...

Abstract There is a lack of research on the effect humic acid salinity adsorption and leaching saline-alkali soil. We used as modifier. Saline soil tests were carried out in laboratory field to study water, salt, wheat yield coastal clay saline Compared CK (non-humic treatment), show that water content, salt adsorption, leaching, removal efficiency, all showed trend increasing first then decrea...

This article is dedicated to the identification of perspective areas for disposal ash and slag waste from thermal power plants, namely generated at TPP-1 in Pavlodar. The composition was considered by methods X-ray fluorescence phase analysis order identify most suitable area their further use. Based on data obtained, it proposed use extraction precious metals, such as aluminum iron, alkaline l...