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Petelyza-Chemical PET Recycling
Veselý, Václav
Chemical recycling of PET is carried through alkaline hydrolysis. The produkt is salt of terephtalic acid, which is electrolytically furthet separated into PTA and alkaline glykol solution. Vakuum destilation is applied to get etylenglycol.
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Desulphurisation of Waste Gases by Dry Additive Method
Veselý, Václav ; Čech, B.
The molar ratio Ca/S is the most frequently for comparison of efficiency and effectiveness of desulphurisation. Desulphurisation of waste gases by a dry additive method is based on the known fact that calcium oxide with sulphur dioxide and oxygen reacts to stable calcium sulphate at high temperatures (850 up to 950°C).
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