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Solvent Recovery from Industrial Paint Waste using Batch Distillation: The Effect of Temperature

Mafaz Setyawan(1), J. Jayanudin(2), Yeyen Maryani(3),


(1) Sultan Ageng Tirtayasa University
(2) Sultan Ageng Tirtayasa University
(3) Sultan Ageng Tirtayasa University
Corresponding Author

Abstract


Recovering materials from waste is a viable solution for managing paint-related organic solvent waste. This study focuses on the extraction of organic solvents from paint residues, which contain resins and pigments, to produce a renewed solvent. The method selected for recovery was distillation, which was used for optimizing the separation conditions for the solvents from their waste impurities. Using a batch distillation apparatus with a 30-L capacity, experiments were conducted at varying operating temperatures (120, 130, 140, 150, and 160°C) under a consistent vacuum pressure of 0.9 bar. The optimal results indicated that at 160°C and a vacuum pressure of 0.9 bar, a naphtha solvent with a 66.37% recovery rate was achieved at 19.91 L and an initial feed volume. This method of solvent recovery not only holds promise for waste reduction but also contributes significantly to environmental protection by minimizing pollutants.

Keywords


Paint industry; Recovery; Solvent.

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