Plasticity and Thermal Analysis of Coal Tar Pitch at High Temperature
1966 Volume 1966 Issue 47 Pages 2-7
Details
1966 Volume 1966 Issue 47 Pages 2-7
Plasticity and thermal analysis of some pitches were examined up to the temperature of coking with Gieseler plastometer which is used for the study of coking reaction of coals.
The pitches studied absorbed considerable heat of coking from about 440°C, suddenly increased their plasticity at 480-500°C, temporarily ceased the increase of plasticity at 490-510°C, and finally changed to solid state from about 510°C.
The temperature of coking was also certified by differential thermal analysis.
The differences among the sample pitches were compared in detail, and the heat of coking reaction of each pitch was calculated from D.T.A. data.
