Different compositions of mixtures sand and clay with medium-grade bentonite for molding critical large parts a freight car bogie are examined in the article. to improve bentonite’s physical mechanical properties, such as gas permeability compressive strength addition soda ash, considered. As material study were taken quartz grade 1K2O2025, medium Navbaharskogo birthplace, improving properties ...

Contamination of waters by discharge heavy metals such as Lead (Pb), Cadmium (Cd), Zinc (Zn) etc. from various industrial activities poses a great threat to humans, plants and animals, thus the need for their removal waste waters. In this work, synthetic tobermorite was prepared using soda-lime-silica glass silica precursor while snail shell ash used source calcium oxide. Several compositions w...

The chemical characterisation of archaeological glass allows the discrimination between different glass groups and the identification of raw materials and technological traditions of their production. Several lines of evidence point towards the large-scale production of first millennium CE glass in a limited number of glass making factories from a mixture of Egyptian mineral soda and a locally ...

The environmental pollution has become, during the recent years, a crucial problem of public concern, and the authorities are requested to realize “pollution prevention” with systematic methods to replace the conventional “end-of-pipe” treatment techniques. The specification of the most desirable reaction routes that connect the initial reactants and the desired products, or known as reaction p...