question about souls ect

[Kidflash112]

I just completed chapter VIII chapter1 solak and got solak soul and a pet aura which i dont need anyway i still have the ones from an earlier quest so i now have 2 souls and 2 pet auras in my inventory and since i already have a much higher soul and aura equipped they are useless to me but i cannot salvage them or trade them is my only choice to vendor them for trash copper seems like a waste to just vendor them but i guess since they are quest rewards thats all i can do with them?