"I can only image what engineering and science problems Van Leeuwen has to deal with."

Same problem that Conocophillips had with their oil refinery waste to graphene.Too costly and too polluting.Mind you,the refinery end product should have been a much finer material to begin with as it was almost carbon material by the time they dump them out from their refinery tubes.Low grade graphite(which is abundant everywhere)was usually from amorphous  origin of the gathering of  garbage type from nature.Now this company seemed to emphasize a great deal in the word"disbersion"  Is it the persistant problem they have or will have?Well Zen graphene is proven that it does not have this problem.