The kinetics of the esterification of levulinic acid with various alcohols: n-hexanol and n-decanol, in the presence of sulfuric acid as a catalyst has been, investigated in an experimental, isothermal semibatch reactor. The range of reaction temperatures was 383-413 K, initial molar ratios of aliphatic alcohol to levulinic acid were 3:1, 5:1, 10:1 and 0.025 wt. % of sulphuric acid was used. The kinetic equations and their parameters have been determined.