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RE: How To Refine Your Own Gold!
Great post. Here they have a huge tank 300' across and about 30 feet deep with a giant hydraulic powered stir. They throw in the ore, lots of water, and a truck load of salad oil. They stir for a while, and the gold floats up in the salad oil then let it stop and drain off the salad oil through a filter.
Uhh ok, so that's called suspensory filtration.
It's crushing the ore and handles that pulverizing stage I mentioned. But the oil is not gold. Tiny pieces of gold and other metals will settle into a layer similar to fractional distillation and then can be drawn off for further refinement.
But it still needs refining afterwards because this technique is not going to be very selective. Everything from nickle to rhodium would be in that layer. Meaning the amount of acid per oz of material would be reduced because you've removed anything soluble in oil by drawing off the oil.
You sure this is actual salad oil? I have a feeling they're calling it that, but it's a chlorine / glycol mix of some sort.
That would cause the various metals to form salts which are easier to deal with.
yes, great post