COMPARATIVE-STUDY OF ISOTHERMAL AND NONISOTHERMAL THERMOKINETIC PROCESSES

In this paper a graphical and analytical method is presented for gener ating reaction isotherms from a set of non-isotherms and vice versa. T he method was tested by using computer generated curves. The method wa s also checked by studying the kinetics of dehydration of calcium oxal ate in a static atmosphere. The reaction was monitored in both non-iso thermal (with nine heating rates between 0.5 and 60 degrees C min(-1)) and isothermal modes (at 150, 160 and 170 degrees C). The 160 degrees C isotherm obtained experimentally was compared with that obtained by graphical method from non-isotherms determined experimentally and the differences of alpha were less than 3%.