A study of the rheological performance of binder pitches derived from modern coke-oven by-product tars
The performance of two coal-tar pitches with low quinoline insolubles contents (QI) has been compared with that of a conventional electrode-binder pitch containing about 12 mass% QI, in tests which examined the dilatometric and binder-exudation tendencies of laboratory-scale prebaked-type test electrodes during baking. Other electrodes from the same batches were baked using the normal laboratory temperature cycle and the properties of the baked electrodes were evaluated. This part of the study showed that air trapped when the green electrodes were being pressed was primarily responsible for an expansion feature on the dilatometric traces at about 200 C, and also caused the majority of the observed binder exudation and consequent adhesion of the packing coke used in baking.
Bibliographic Reference: EUR 14267 EN (1992) 67 pp., MF, ECU 4, blow-up copy ECU 11.50
Record Number: 199310070 / Last updated on: 1994-11-29
Original language: en
Available languages: en