Lounge access is dependent upon your onward (as opposed to inbound) flight. So, if you are continuing in either F or J, then yes you would have access to the relevant lounge.

But have I read your post right here as regards arrival & departure.... ? Are you seriously planning to stay in the lounge for approx 32 hours .....??

The DXB lounges are very pleasant places for a couple of hours or so ; but personally I just can't imagine wanting to stay there for that length of time !

Each to his own I guess - assuming there are no restrictions in place re such an extended occupancy.