VARYING POROSITY KINETIC MODEL FOR DIRECT AND REACTIVE SOLID-LIQUID EXTRACTION. Hungarian Journal of Industry and Chemistry, [S. l.], v. 30, n. 2, p. 95–101, 2002. DOI: 10.1515/hjic-2002-17. Disponível em: https://hjic.mk.uni-pannon.hu/index.php/hjic/article/view/948. Acesso em: 13 apr. 2025.