at the end of a 3 day WW, Monotype, and misc scrap lead smelting marathon, I thought I'd end it off with smelting all the Zinc that had been sorted out, skimmed off, and some I got in a trade...my little gasoline campstove was barely up to the task (heatwise)...it took about 3 hours of MAX heat on the covered pot to liquify it, then trying to flux the dross was nothing like fluxing a lead alloy...I suspect my problem was it wasn't hot enough, the dross I removed probably had a few lbs of zinc that should have been recovered...But, I did get 20+ nice looking 'castboolits' ingots though...BUT never again, the zinc will get trashed, traded, or sold as it.
These are WW alloy ingots, I store them in used MFR box bottoms with a 1/4" plywood bottom. 64 ingots each...about 50 lbs.