the effect of binder pitch quinoline insolubles content - Coke Oven ...
the effect of binder pitch quinoline insolubles content - Coke Oven ...
the effect of binder pitch quinoline insolubles content - Coke Oven ...
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BINDER PITCH QI CONTENT – ALUMINIUM ANODE<br />
Increasing <strong>the</strong> amount <strong>of</strong> normal QI in <strong>pitch</strong> has been found to have<br />
<strong>the</strong> following <strong>effect</strong>s on anode properties:<br />
Baked density – increase [6,16,17,23], decrease [14], or not strongly<br />
influenced [20,24]<br />
Strength - increase [2,6,8,13,16, 17,21,23,25], or little change<br />
[14,19]<br />
Electrical resistivity – increase [2,8,17], decrease [6], or little change<br />
[19,20,21]<br />
Air Permeability – decrease [6] or little change [19]<br />
Coefficient <strong>of</strong> <strong>the</strong>rmal expansion – increase [22]<br />
Reactivity – increase [2,8,15,17,25,26], little change [19,21,23,27]<br />
Sodium sensitivity – decreases [25]<br />
Anode consumption – little change [20,21,23,27]<br />
While <strong>the</strong>re is a lot <strong>of</strong> variation in <strong>the</strong>se reported anode property<br />
results, it is worth noting that in virtually all <strong>of</strong> <strong>the</strong> studies reviewed<br />
(covering normal QI levels from 1 – 20%) <strong>the</strong> measured anode<br />
properties were in <strong>the</strong> typical ranges for each test. Several studies<br />
showed clear evidence or included <strong>the</strong> comment that low (e.g.