Originally Posted by
siver
I think the problem is this:
After using the dust of dusjunction, the original poster added Light Fortification to the ring. At that point, the ring is bound to character. Using another dust will not change that.
Dust of Disjunction does not change how an item is bound. If it is BtC before the dust is used, it'll be BtC after. If it becomes BtC because you used a shard on the item, then try using the dust, it will remain BtC.
As it stands, I don't think there is any way to make an item that you added an effect to unbound.