EFFECT OF ULTRASOUNDS ON LOW-ENERGY PROCESSES AND ELECTROLYTIC CONDUCTIVITY OF MOULDING DUST WASTE SUBJECTED TO ADVANCED OXIDATION

The article presents the basic characteristics of the pollutants emitted in the process of foundry mould manufacture. A method to reduce harmful emissions through the application of advanced oxidation was described...

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Processes of pyrolysis and their effect on cast quality and working conditions

The article discusses the thermal processes undergone by the sand mould in contact with the liquid casting alloy. Depending on the character of the atmosphere in the mould, this can be the process of combustion or pyrolysis (when there is no oxyge...

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The process of bonding by methacrylamide polymerization conducted in situ on a mineral matrix

The process of bonding by polymerization of methacrylamide was performed in situ on a quartz matrix at 25°C as well as in a microwave field (150°C; 800 W; 2.45 GHz). The composition of the reaction mixture, beside methylacrylamide as the m...

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Spectral study (FTIR, UV-Vis) of montmorillonite modified by ultrasound and potassium cations

This paper presented the spectral study (FTIR, UV-Vis) for samples of non-activated bentonite (calcium) which has in its composition a main mineral resource, montmorillonite (MMT). MMT, as a component which contains calcium ions (Ca-MMT, was modif...

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Structural studies (FTIR, DRIFT) of CMS-Na0.6 etherified starch for applications in moulding sands technology

Structural (FTIR) and thermo-analytic (DRIFT) studies were conducted on modified starch in the form of sodium salt of carboxymethyl starch (CMS-Na0.6) in the initial state, i.e. a colloidal solution, and in a cross-linked form prepared ...

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