Extraction Kinetics of Montan Wax with Benzene and Methanol

Abstract Crude Montan wax was leached out of a low-rank coal by a 50:50 vol.% mixture of benzene and methanol. An extraction yield of 35.5% with respect to the available wax or 2.25% with respect to the extracted coal was reached after 143 min. The wax production was well described by a kinetics with two consecutive steps, and the extraction column behaved as an ideal plug-flow chemical reactor. Keywords: Low-rank coalMontan waxExtraction kinetics Acknowledgments The author wishes to thank for their supports the Organic Chemical Technology Laboratory at the University of Tirana, Albania, and the Department of Chemical Engineering at the University of Toronto, Canada.