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Help Support Gold Refining Forum: T. theseeker4 New member. Joined Mar 27, 2023 Messages 1 Location United States. Mar 27, 2023 #1 Hello all, New member here. Found this forum via videos on Youtube. My main interest in metal refining stems from a childhood interest in numismatics, combined with an interest in geology and …
Help Support Gold Refining Forum: ... General Gold Refining Discussion. J [SOLD] Approx 45lbs of gold-plated contact pins. Latest: jdgodz1984; Today at 3:22 PM; For Sale, Trade & Wanted. Dissolving an unknown Polymer. Latest: Martijn; Today at 2:09 PM; General Techniques & Other Processes.
BC. Dec 3, 2023. #3. Heavy-Black-Sand said: QUESTION: ..... Can you describe how potassium cyanide is used during the gold leaching process. ANSWER: ..... Certainly. Potassium cyanide (KCN) is a widely used chemical in the gold mining industry for gold extraction through a process called cyanidation.
Help Support Gold Refining Forum: goldsilverpro In Remembrance. Moderator Emeritus. Joined Mar 30, 2007 Messages 7,961 Location Benton, Arkansas. ... The CRC Handbook I have is from 1974 and the chemical compound data tables are laid out with the compounds alphbetized down the left side (rows) and the properties across …
The silversmith's handbook. Thread starter jimdoc; Start date Dec 27, 2011; Help Support Gold Refining Forum: ...
Thread starter kane333; Start date Apr 26, 2013; Help Support Gold Refining Forum:
Jan 19, 2024. #2. bhilton said: Hello, I have half a pound of gold fingers, plus lots of gold plated pins, connectors (like wifi antenna ends), and ribbon fingers. Now I'm ready to separate the gold starting with Nitric Acid & distilled water. I attempted to keep my material clean, removing all traces of tin & solder (to the best of my ability ...
when trying to download handbook, I get Sorry you are not authorized to download what is happing, why the authorization for a free item Forums New posts …
Dallas, TX. Dec 12, 2018. #1. Hi Guys, Per Frugal Refiners suggestion I droopped all of the gold from an AR solution and transferred the solution to a larger vesssel to cement all the PGMs remaining with a copper bus bar using an inexpensive air pump intended to aerate aquariums. The copper plate/bus bar is 1/4" thick by six inches by 8 nches.
To collect 1 ton of copper, 5 ton of scrap has to be processed and 2.5 ton of slag produced. The one ton copper should hold 500 g of gold. If the furnace recovers 99% of the copper it means will loose 10 kg of copper to every 1000 kg melted from 5 ton of scrap. It means will lose 5 grams of gold.
Beginners Gold Refining Process Forum. If you need help with the gold refining processes and it's not specific to a forum below, post it here.
The Gold Refining Forum Handbook Vol 1 has the Aqua Regia formula per Hoke as follows: "Hoke states 4 fluid ounces HCl + 1 fluid ounce HNO3 dissolves 1 troy ouncegold. This is equivalent to 31 mL HCl + 8 mL HNO3 per gram of gold." Lazersteve (I think correctly) converted this to a "per gram" amount ...."Hoke states 4 fluid ounces HCl …
Help Support Gold Refining Forum: justinhcase Well-known member Supporting Member. Joined Feb 12, 2014 Messages 1,740 Location ... there are direct download links for both volumes of the handbook. Reply. Palladium Well-known member. Joined Jan 17, 2008 Messages 5,740 Location USA. Oct 10, 2016 #6 All Free - All the …
Yggdrasil said: No Gold or Silver will dissolve in HCl alone. Gold can dissolve in HCl and an Oxidizer. Silver will not dissolve at all in any Chloride media, it will form Silver Chloride and stop there. Silver is not in solution so it will not precipitate anyhow and SMB has no mechanism to my knowledge.
Gold refining handbook vol #2. Thread starter Anonymous; Start date Jun 24, 2009; Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and …
The result of this process is 99.5 percent pure gold. The final step is to cast the gold into electrodes or anodes and place them in an electrolytic cell. The refiners will then pass an electric current through the cell. At the end of this process, the …
Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. D. Drimacus Member. Joined Jul 25, 2010 Messages 18. Jan 14, 2013 #1 ... United States. Mar 8, 2014 #10 The break-down sounds like an excellent idea. It would eliminate the first nitric dissolution of the ...
To assess and refine the gold, the refiner will need to separate the gold from the other elements and determine how much of each substance there is and what they're worth. How Scrap Gold Is Refined. The most …
General Gold Discussion - NO REFINING! This forum is for general non-refining gold discussion such as prices, where to sell, etc. Threads. 47. Messages. 518. …
Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. 1; 2; Next. 1 of 2 Go to page. Go. Next Last. ... United States. Sep 15, 2015 #19 Slochteren said: Thanks, also the right recipe with 53%nitric is: 3.5 ml Distilled Wtaer 29 ml 53% nitric 15 Gram K2Cr2O7 Right?
Today at 7:45 PM. Latest: Shark. Today at 5:26 PM. Latest: Naughtius Maximus. Today at 4:51 PM. S. Latest: sheilareidsmail46. If you need help with the gold refining processes and it's not specific to a forum below, post it here.
Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. Harold_V Well-known member. Moderator Emeritus. Joined Feb 25, 2007 Messages 8,360. ... United States. May 26, 2009 #13 Harold, ...
Help Support Gold Refining Forum: 1; 2; Next. 1 of 2 Go to page. Go. Next Last. T. Topher_osAUrus Well-known member. Joined Feb 16, 2016 Messages 1,923 ... Platinum *Principles of Metallography by Williams and Homerburg *Beryllium and the Rare Minerals by Raymond Maulsby * CRC Handbook of Chemistry and Physics (33rd and …
Refining Precious Metal Wastes Gold, Silver, Platinum Metals a Handbook for the Jeweler, Dentist and Small Refiner Hardcover – Import, January 1, 1940 by C. M. Hoke (Author) 4.6 4.6 out of 5 stars 16 ratings
AR didn't dissolve karat gold completely and lots of black precipitate. HarryHJ. Yesterday at 2:17 PM. Beginners Gold Refining Process Forum. Replies. 3. Views. 128. Yesterday at 9:45 PM.
Inquartation, Dissolution, Precipitation, Washing, etc.
Jan 25, 2024. #1. Have some good friends I ride motorcycle cycle with in Colombia and rest of south America. One of them messaged me and said their cousin just got approval to export gold. And was wondering if I knew anyone in the states. He really did not know what they were talking about. But can sell up to 150 tons.
Help Support Gold Refining Forum: This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others. 1; 2; Next. 1 of 2 Go to page. Go. Next Last. J. jam353wih New member. Joined Jan 5, 2014 ... United States. Jan 15, 2014 #4 jam353wih said:
Hi, dear forum members! I refine karat gold using inquartation with silver and parting in nitric for a long time. The result is consistent 996+ which is enough for my goals. Contaminant is only silver. Sometimes bleaching with KNO3. Melting is in a gas kiln. I tryed fluxing using the forum recepies to achieve 999. The first one is by 4metals.
Gold Prospecting in Ireland CD CHEMISTRY (GOLD REFINING) HANDBOOKS GOLD REFINING BOOKS ALL KINDS INFO Gold Refining Forum Chat …
17. Nov 30, 2017. #1. Hi all, I'm new to this forum so please forgive my ignorance. I could be wrong, but it appears most of the members of this forum either work in metals refining or have small businesses they run to refine precious metals. I am wondering why no one has tried to start a larger scale business to recycle used electronics, with ...
High priced electronic testers can test without damaging the piece. According to Google, "United States enacted the Gold and Silver Stamping Act in 1906" Gold jewelry before and after 1906 sometimes does not have stamps because of wear but on an major antique jewelry forum recently I raised this question and someone said it's …
Gold Refining Forum. 1,148 likes · 1 talking about this. The Gold Refining Community Board is a place for refiners to come together and share experiences and helpful tips with one another! Log In. Gold Refining Forum 1.1K ...
when trying to download handbook, I get Sorry you are not authorized to download what is happing, why the authorization for a free item Forums New posts Search forums
From my thought, the most valuable advantage of using rotary furnace with big feeding door that help to feed materials easily is we can use a very small amount of collecting metal to collect precious metals for larg sweeps quantity, for example in my case I have about 1,500 kg of sweeps, they need about 300 kg of lead as a collector metal …
Feb 13, 2013. #17. Drimacus said: I want to maximize the life of the nitric acid electrolyte, so will be using silver anodes of at least 99% purity. It would also be desirable to minimize electrolyte decomposition by parasitic reaction as discussed in part 6.
To dissolve 5 oz (about 155g) of copper or copper alloy, it will take about 1286ml of 50/50 nitric - 8.3ml/g. This assumes an open top beaker and that, by 5 oz, you meant 5 troy oz. With only 800ml of 50/50 nitric, you …
Conclusion is: 1kg of small various chips contains 1.338688g of gold. (only from ash, not including magnetic wires with gold bonding wires trapped inside of them and resins-wires, silicon dies and heat spreaders) Average weight of one chip is 0.118252335g. Average gold content by one chip is 0.000158303.
