C,riticism ok, just hit soft spot, maybe I tried to shorten the post too much, using too many abbreviations and terms of electronics some might not recognize, and trying to discribe several things at once,not enough schoolin, ok enough chit chat. The process uses distillation, if not done properly can be dangerous as with most any proceedure in this field, this process is nothing new but does do several things at once. uses a cheap nitrate fertilizer and sulfuric acid, sulfuric acid (H2SO4)(new) napa or autoparts, boiling point approx 338 deg C,33% will need to be concentrated, since its boiling point is so high can heat it and boil off the water portion, I do not boil out all the water as some water is benificial, (if concentrated needed for other processes boil till white fumes 98%), I boil approx 8 cups down to 6cups, my hot plate sits on a fiberglass catch pan, every thing done outdoors! several miles to my nearest neighbor, then I use approx one pound of a nitrate fertilizer, sodium nitrate (soda nitre)(NaNO3) 16-0-0, or pottasium nitrate(KNO3) sold as stump remover, now my setup a gallon pickle jar with a 1/2 thick piece of teflon I turned on lath to perfectly fit jar a hole drilled in center slightly smaller than the hose a hard clear hose used for chemistry and strong acids, this hose catches gas from top of jar, in this jar my 1# KNO3 then baby food jar of cut Gold plated pins, (solder removed), then my cooled 6 cups of sulfuric, every thing must be prepared before I add the sulfuric because once added it starts to generate NO fumes which pickup an oxygen from air to make NOX (red deadly fumes).this hose from pickle jar, goes into the botom of another bottle, through another teflon made cork with two hose. this bottle has a small amount of water in bottom that hose from large pickle jar can bubble its gas through water and collect the hydrogen oxygen from the water,the other hose from this bottle collects its gas going to third bottle bubbling through water this third bottle allowsgas to escape. strong acid will be in first condenser bottle ,now the pickle jar is in a large stainless steel pan sand bath sitting on about an inch of sand,then sand filled around jar with sand.this allows for heating without breakage, (glass do not change temperatures too fast)and also acts as catch pan, this pan sits on electric burner hot plate. the condenser bottle's we are distilling into sit in an ice water bath at lower level (cools gas condensing & create vacuum) the Teflon)lids are taped with teflon tape then black electric tape then I use cloth tape, (I dont worry about pressure build up, the heat and tape allows a type of pressure relief if its needed),the condenser bottles are taped prior to adding sulfuric acid to the pickle jar and pickle jar is taped, as soon after sulfuric is added as I can,( to save every bit of those brown fumes). now we add low heat (DO NOT SHOCK GLASS) just enough to generate NO2 red brown fumes which bubble gas through water of the first condenser then it collects a hydrogen from water and oxygen and makes HNO3, since the sulfuric acid is a dehydrator it changes the azeotrope boiling point, and allows for an up to 68% HNO3 strength (depending on molar ratio). CAUTION DO NOT LEAVE THIS UNATTENDED, DO NOT REMOVE OR LOWER HEAT FROM PICKLE JAR WITHOUT REMOVING HOSE FROM CONDENSER BOTTLE, LOWERING HEAT CREATES A VACUUM, WHICH WILL SUCK COOLER CONDENSED SOLUTIN BACK INTO HOT JAR AND BREAKING IT CAUSING A MESS AND LOST GOLD(MIXED WITH SAND)(then you will have to learn to process ore). I raise heat as needed to keep the NO2 gas going, till the solution is complete (color changes to blue sulfite). this is using the weak nitric I have made in pickle jar to oxidize the copper from pins and the sulfate to gobble up the copper since neither of these eat my gold its there as flakes and shells powder ect. at same time we are distilling a nitric acid we can use for other processes cleaning base metals Aqua Regia ect. and we are making a byproduct of copper sulfate, which can be used in electroplating, or evaporated to a salt for other chemistry uses, or used in refining (it stores easily) or can be used for root removal in sewer lines (product sold for 6 dollars at walmart).many other uses ,the byproducts from refining can be used for several things,after using them several times in refining slowing down our waste stream. store nitric out of sun (light destroys it) I use bottles made for nitric (teflon in lids) (brown bottles or clear bottles shielded from light), Nitric acid will eat rubber and cork(especially hot), this is why I use teflon, electrical tape holds up well for short period of time, when solution is done and your gold is in bottom of jar of copper sulfate liquid, remove hose from condenser then you can lower heat , note this wiil start to salt, and will need diluted to keep liquid state, it seems to take more water after it has salted to disolve that if kept from salting to begin with, (remember do not change temperature of glass fast).I let Gold settle and decant remove liquid copper sulfate. gold can be cleaned further for more pureity Cu+ H2SO4 + KNO3 =CuSO4 (KSO4) + NO2 + H2O then NO2 + H2O = HNO3 maybe chemist can correct me if I miss figured. (IM just learning) , this can be done safely but as with any thing, I dont just read about something and try it without studying it further, these acids are dangerous, this process can be also, if not done properly, as with many things, we cant just give our kids the keys to the car and turn them loose on the freeway before they learn to drive. Butcher