Question

what are some possible ways to raise a low percent recovery from a solid?

Answer 1

Depending on the system you're working with. If you're working with a solvent/resin blend, then adding more resin should raise your solids number. The more solvent you put in, the more you add to the weight of the solution, and the more the solvent will burn off in the end when trying to recover solids, and the lower your yield will be.