We end up with a diluted solution of sulfuric acid, various metals (including gold), and waste that then needs to be filtered. Why not just filter the solution directly, without diluting it? Because paper filters don't stand up well to strongly concentrated sulfuric acid. That's why.
a question, does it worth? the gold can afford the cost of the chemicals and leave a gaining?
but would cost more than it makes if you dont already have the stuff??
That means I do the complete opposite!!
By the way, professionals do filtration of concentrated acids with filters made from sintered glass, not paper filters. But then you need a vacuum pump and other equipment to do it appropriate.
Not very clever to start a process without adequate equipment.
And all of you people who think it is not worth your time... your right its not you would probably just hurt yourself anyways. So keep throwing away your old electronics I'm sure someone is thanking you for it.
@or not: not everything is sold on ebay you effin nerd get outside and explore.