4metals said:
Refining with hoods scrubber and reactors around 50K
Assaying with all new equipment, balance, furnace, rolling mill, and parting hood around 25K
Methods already spelled out on the forum for free............priceless!
I'm certain that you 4metals, can come up with a setup for a lot less. He's doing 400 Oz a month total (150-200 Oz fine), not per day. And only needs a dozen assays per month, even if he refines once a week. Buckets are cheaper than reactors, and with a wet-dry vaccuum cleaner ($70), and 2 buckets, you can scrub any fumes. If really pressed, one could set this up for $1,000 or less imho using torch assays for fine. Only expensive item is the 0.0001g or better analytical balance which is not included in the $1,000. A used one in good condition would do.
Your budget is for a much larger volume and professional operation. Maybe justified for 1,000 Oz fine per day refinery with dozens of assays per day. Or Maybe I have become too much ElCheapo. :lol:
$1,000 goes a long way buying old used cast iron pans and/or plastic buckets. 8)
The assay lab is the most expensive part to setup properly, balance, furnace, rolls, etc. but $25k is a bit high, I think. I think GSP was selling a complete one, not long ago, for some $5k, but I can't remember for sure.
For the OP: If someone competent teaches you to assay (there must be courses at universities or by private companies/instructors), you can learn 95% of what's needed in 1 or 2 weeks of hands-on experience and reading, the other 5% will take reading many, many books, hundreds of assays and probably a lifetime to learn to the mastery level!. Your material is very easy to fire-assay accurately. I think someone in the forum posted about a fire-assay school course in Colorado or California, but perhaps I read it somewhere else.
I was self-taught by reading books and took me about 2 weeks to get repeatable and accurate results, after a few failed experiments, but later encountered dozens of "special situations".