Aug 16, 2022. #2. Dissolve the alloy in aqua regia and deNox with sulfamic acid. Then filter and drop the gold with ferrous sulfate. This precipitant will assure you that the Platinum remains in the same valence state allowing the next reaction to be more effective. Precipitate a warmed solution with a warm solution of water and saturated ...

Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. kadriver Well-known member ... //youtu.be/ouYW_7-Njbs Comments and critique welcomed. kadriver Edited to change to 3 part video instead of a 2 part video . Reply. J. jason_recliner Well-known member. …

also, be aware that old stuff could contain toxic metals like cadmium or beryllium. cadmium oxide is volatile at the incineration temperatures, beryllium dust could be present. this isnt fun, it could easily kill you, besides of contaminating whole area with cadmium or beryllium ashes. modern electronics still contain lead. lead oxide also ...

The hard drive video only demonstrates the dismantling of the drive. I'm in the process of moving all my videos to a newer format and that one may still be in the conversion stages. As for the platters containing Platinum, the fact is that some of them do, but it only exists on the order of 20 parts per million (that's 20 grams per metric ton).

When you get a clear solution you know the gold was quite good even before the second refining. - Have you tested leaching the scrap circuit boards with fresh aqua regia? It's no waste as you can use it on the next batch of fingers. Any gold or other hidden metal should give a color to the AR. And as always, thanks for the video. 8) Göran

Aqua regia is a Latin term that means "royal water.". The aqua regia gold refining process involves the use of highly corrosive chemicals to allow gold ore to reach purity levels of 99.99%. The chemical combination includes the use of both nitric acid (HNO3) and hydrochloric acid (HCl) in a very specific ratio.

Shor International – The Simplicity Refining System. In return for purchasing, from Shor or an authorized Shor agent, the Simplicity Refining System and its … See the video for an example of an appropriate … » Free Online Chat Shor International – Refining. Shor has refining systems for gold, platinum and silver. Our gold and … Refining Videos: VHS …

Location. United States. Sep 13, 2015. #1. Here is a new video that I just completed. It took just over 24 hours from start to finish. Computer scrap is something I don't mess with much because it is so low yielding. But making this video was fun. Any comments and critique are always welcome.

The Shor patent of the ammonium chloride electrolyte that dissolves the gold also is #5,009,755. It has 1 to 2 pounds of ammonium chloride per gallon, 2 to 4 ozs of NaCl per gallon, and .25 fl.oz. of hydrogen peroxide per gallon. The anode is bagged and the anode solution is separated from the cathode by a membrane.

Hydrolysis: IrCl 4 + 4 H 2 O ==> Ir (OH) 4 + 4 HCl. For completion the generated acid has to be neutralized. Reaction of sodium bromide (NaBr) with sodium bromate and acid forms elemental bromine (Br 2 ). 5 NaBr + NaBrO 3 + 6 HCl ==> 3 Br 2 + 6 NaCl + 3 H 2 O. This reaction uses up slowly the acid formed in the hydrolysis-reaction …

Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. -a Well-known member. Joined Oct 7, 2009 ... I like the simplicity of the design but wonder if baffles would require you to have a very large blower to overcome their resistance to air flow. 8) Reply ...

2ounces of nitric sounds like a pretty big excess. 1.22mL/g HNO3 (nitric) + 1.22mL distilled H2O per gram. -this does not dissipate the copper from the coinage, it dissolves it, oxidizing the copper and silver. Its not a liquid pure silver concentrate, it is a solution of copper ions and silver ions.

May 26, 2011. #2. It rapidly dissolves the zinc contained in the alloy, so even if you don't achieve a fast dissolution of the entire body, it is degraded. While I have not ever used any of the work-around processes that are widely supported on this forum, seems to me the addition of a small amount of hydrogen peroxide is all it takes for HCl ...

In all it only required about 800 ml to process about 8 lbs. The AP on the other hand was about 1400 ml per pound. That's a huge difference in waste solution to deal with. The truth is, as far as I can tell, my 800 ml of sulfuric can still be used for more processing. The AP is done for, 2800 ml of waste.

The two gold refining methods most commonly employed to derive pure gold are: the Miller process and the Wohlwill process. The Miller process uses gaseous chlorine to extract impurities when gold is …

Kovacs, I used the Simplicity for several years until the time I had was better spent on the production of jewelry or the raising of my kids. Now I use Hoover and Strong here in the US for my gold refining. I found the Simplicity easy to use and very satisfactory for the refining of my gold scrap. The fumes produced by the

To begin a gold refinery company, you need more than a hope and a dream. You'll need to assemble the following supplies to get you on the right path: Battery charger. Ingot mold and gloves. Crucibles. Stirring rods. Flux. Electric gold and platinum tester. Simplicity gold and platinum refining system.

When refining gold and silver into Dore, it's essential to have a range of equipment that will optimise the process. With our years of experience and expertise, we provide a variety of different systems designed to boost the recovery at your plant without substituting simplicity or a smaller environmental impact.

2Au + 6HCl + 3NaClO --> 2AuCl3 + 3NaCl + 3H2O From the equation theoretically, two moles of gold (2 x 196.97 grams) or 393.94 grams of gold will react with six moles of HCl acid (6 x 36.46g) or 218.77 grams of HCl and three moles of sodium hypochlorite (3 x 0.0134g) or 0.0402 grams of NaClO -----> to yield two moles of gold …

As IGR, we are a proud to work with strong refineries listed on that list . IGR continues to strive for perfection through developing common solutions and meeting the expectations of the environment and always aiming to be one of the best and most reputable trading company in the precious metals market worldwide. As IGR Metals Trading DMCC our ...

2. Place the crucible on a fireproof surface. 3. Aim an acetylene torch at the gold. Aim the flame at the gold until the gold is …

30,882. Messages. 357,713. Members. 19,027. Brian Pulfrey. Gold refining and metal extraction hobbyists and professionals help one another through the previous metal refining/extraction process.

Shor AR3G Aqua Regia Gold & Platinum Refining System. The Shor AR3G Aqua Regia Gold & Platinum Refining System is the latest iteration of Shor's aqua regia system. Very affordable, yet one of the most …

The results for tin extraction are similar to those obtained by Barakat (1998). The poorest results were produced by the 2.18N H2SO4 system (2.7% Sn and <0.01% Cu). The secondary leaching of the 2.18N H2SO4 + 3.0N HCl system reached a level of 90% Sn extraction and only 12.3% Cu extraction from the primary leaching residue.

I made a video and dissolved the entire plate using 900ml of concentrated nitric acid. Then I filtered and precipitated the silver chloride and converted to pure silver metal with lye and sugar. I ended up with a 4.6% yield of pure silver, 15.2 grams from the 324.5 gram silver plated plate.

Videos; Events; Advertising; ... • Simplicity of Charges ... Express Gold Refining Ltd. is a fourth generation operated family business. The roots of the company go back to 1915 in the middle-east where the founder started to service the Jewellery district in the heart of downtown Cairo. The same basic principles have been passed down from ...

I then adjust the pH to 7 using sodium hydroxide and the metals precipitate as a black powder. Filter after 24 hours using a large nylon cooking strainer (say 8") and tissue papers over a 5 gallon bucket. Dry in an oven for about 5 hours. Roast to convert the metals from oxides to gold and then furnace or smelt.

84. Nov 16, 2021. #5. Yes he is a good chemist, this gold recovery video is like his first time but he nails it. Has a video on waste management as well…he shows reactions, explains oxidation, reduction, and other broad concepts. The only problem is that he's like a mark Rober now and maybe puts out a video every two months.

Oct 11, 2013. #1. This is my first forray into taking platinum further than cementing it out of solution. I've AR'ed a couple dozen automotive oxygen sensors to strip platinum. I concentrated it down, dropped a nice quantity of yellow platinum salt with ammonium chloride, and filtered it. Now I'm left with a still reddish colored platinum ...

Shor International sells tools and supplies for precious metal refining (gold, sliver, platinum and more!), jewelry making, silversmithing, polishing, weapons cleaning, and much more. Refine gold and other precious metals and then craft it into beautiful