also another thing i was wondering in the videos where he was precipitating the gold the solution is in a large glass jar with a cover. What are those called i would like to find a couple. and i am going to try the AP method sometime in the next couple weeks or so. i live where its cold and average daytime temps are in the 40s and night time in the …

The following patent also outlines the method of refining gold from ore which when tested shows no gold content. ... This procedure leads to a greater degree of sub-division to provide smaller clusters of gold chloride. At the end of this procedure an orangish-red salt of gold chloride is obtained. The salt will analyze as substantially pure ...

Hello, I used the method outlined by Shor - I used AR 3:1 instead of there Nitric substitute. I dissolved gold plated on copper - board scrap- Then I used urea to remove the nitric -solution dark emarald green. I used their storm precip., and no Au fell out of solution. What...

Hello All! After many experiments, I noticed that the best way to make sure that all nitric is destroyed is to take a drop of aquaregia and test it using only one drop of stannous chloride, if gold is above 70 PPM, it will turn dark, and if there is any nitric it will light again, if there is no nitric at all it will keep dark.

Explore Linde's process gases for GMAW/MAG welding using solid filler or metal-cored wires for all stainless steels - from standard chromium nickel to superaustenitic & from duplex to ferritic

This chapter focuses on the advances in the refining of gold at the Rand Refinery. ... This arrangement results in a zero-effluent operation and NO x emissions are almost totally ... Considerable effort over numerous years has been put into developing reliable and accurate primary and sub-sampling methods for the very wide range of …

I have asked Shor for the MSDS sheets for the chemicals they supply for the acid system. What I got did not meet the requirements of the Federal Government. They listed the chemicals by the name of storm precipitant, but did not list what chemicals it was comprised of. Same thing for the "Sub Zero".

I have had a bunch gold heavy component free circuit boards for some time. I picked up a Subzero kit from Sears. The kit was missing muriatic acid so I got some of that at Lowes. The kit comes with the following and some testing chemicals. 1 lb. SubZero …

General Techniques & Other Processes ...

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True AR is a combination of nitric acid and hydrochloric acid. Subzero is actually sodium nitrate, which combined with HCL still dissolves gold. Another Ishor …

Gold refining is the process of removing impurities from raw gold to achieve a higher level of purity. When gold is mined, it often comes mixed with other …

The best, most productive method depends on what material you plan to process. There is no one best method to do everything. Follow Yggdrasils advice, then post the material you have and your planned method of choice. We (the forum) can read it over and give advice based the material and methods of choice.

The purpose of this thread is to begin to consolidate the vast amount of questions and answers related to the Acid Peroxide (aka AP) recovery process. First and foremost, the name for the process, Acid Peroxide is a misnomer as the active ingredient is actually copper II chloride (CuCl2), so it...

I use HF to remove the polyimide coating which exposes the gold, followed by the gold lifting off the underlying films, which HF attacks. I used AR from Shorr which I feel is a waste. Takes too long. I used their nitric replacement sub-zero. I have had components soaling in solution for days, the gold finally removes but it takes …

I'm not sure what the best method is, but like I said, the one I came across most frequently was make a 3:1 ratio of HCl to HNO3 of AR, dissolve the gold with it, add urea to neutralize the HNO3 (which it does do, but if that is not necessary or an old method of doing so, I'm open to suggestions), then add the SMB to precipitate the gold.

Gold refining in aqua regia. We produce two types of gold refining units: static plants and rotary plants +39 0575 420100; info@balestritechnologies; Home; Refining. Gold refining. Gold …

Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. ... The second method mentioned was compression. Compression requires a different mold, one that can withstand the pressure required to compact MgO with a H-press — I think I was going to need to …

Bismuth refining method? Thread starter ORCB; Start date Feb 1, 2011; Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. O. ORCB Member. Joined Jan 14, 2011 Messages 18. Feb 1, 2011 #1 Anybody have any knowledge or thoughts? I found out …

Method 3: Gold Melting Furnace. This is your ultimate heat therapy. It uses blazing-hot temperatures to melt the metal and part ways with impurities, leading to purer, shinier gold. This method can handle big-time gold …

NHF, AP removes the base metals and leaves the majority of the gold intact. This makes for cleaner gold once it is dissolved and uses zero nitric acid (expensive and hazardous). It takes a lot less AR (or HCl-Cl ) to dissolve the small amount of foils after removing the base metals and provides for cleaner gold precipitations. Steve

Hey everyone. I'm new to gold refining and have some questions. I came upon this project when my uncle asked if I could try and recover the gold from some DSL equipment racks he pulled from an apartment building. I started with a google search and found Shor International before having...

Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. ... PLATINUM $1194 PALLADIUM $345 RHODIUM $5975 IRIDIUM $460 RUTHENIUM $850 Shor international sells a gold recovery system (Simplicity) for $545. It mentions Platinum, but it seems …

Nitric acid is highly corrosive and highly toxic nitric oxide fumes when used in the aqua regia process of refining precious metal. Additionally, it is expensive and difficult to obtain. By using Subzero instead of nitric acid, nitric oxide fumes are completely eliminated.

Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. ... Remember when you posted the following on Oct. 8th on the Aqua Regia/Sub Zero forum about a ... He ended up getting an article in the Smithsonian magazine for his discovery and methods of …

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 …

"Information storage requirements continue to expand at rapid rates, fuelled by the growing use of computers for video and audio applications. Today, all hard disks contain platinum in their magnetic layers, compared with around 50 per cent in 1997. The proportion of platinum in the magnetic...

The Suzdal plant in Kazakhstan was the first BIOX plant to operate at sub-zero temperatures. The original design capacity of the plant was 192 t/day of concentrate at 12% sulfide sulfur. Detailed heat …

Gold-containing Mercury/Antimony: A xanthate collector with cyclic alcohol frother (e.g. pine oil) together with dithiophosphate can be very effective at alkaline pH …

After reading some of the thread here, If i did not understand wrongly, By using HCL/Cl method can do the same job as AR dissolve gold and precipitate with SMB. But i see the advantage here if we use AR there will be a need to drive off the nitric and if using HCL/CL method we will just need to set it in a open container for 24HR and the ...