Affiliation:
1. Universidade Federal dos Vales do Jequitinhonha e Mucuri-UFVJM
2. Ciências e Letras de Ribeirão Preto da Universidade de São Paulo
3. Centro Universitário SENAI-CIMATEC
Abstract
Abstract
Activated charcoal was prepared from Acrocomia aculeata (macaúba) endocarp by ZnCl2 activation. The charcoal was used for the adsorptive purification of pretreated crude glycerol (CG) and potassium dihydrogen phosphate (KH2PO4 or KDP) was formed by the addition of H3PO4 to the crude glycerol containing KOH, which was used as catalyst in the production of biodiesel and glycerol. The KH2PO4 was isolated and purified by recrystallization from aqueous solution. The KH2PO4 was characterized by X-Ray diffraction (XRD), thermal analysis (TGA/DTA) and spectrophotometry in the infrared region – FTIR. From 216.0 m of crude glycerol, 20.1038 g of purified KH2PO4 was obtained.
Publisher
Research Square Platform LLC