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https://www.amazon.com/Small-Scale-Refining-Jewelers-Waste/dp/B0010KFEE6
Refining precious metal wastes: Gold, silver, platinum metals ; a handbook for the jeweler, dentist, and small refiner C. M. Hoke. 4.7 out of 5 stars 3. Hardcover. $145.99. Only 9 left in stock - order soon. Next. Special offers and product promotions.Author: Roland Loewen
https://www.amazon.com/Small-Scale-Refining-Jewelers-Wastes/dp/0931913195
Small Scale Refining of Jewelers Wastes Hardcover See all formats and editions Hide other formats and editions. Price New from Used from Hardcover "Please retry" $249.50 . $249.50 — Hardcover $249.50 1 New from $249.50 The Amazon Book Review Free book recommendations, author interviews, editors' picks, and more.
https://www.lmine.com/assaying-processing-c-223_307/small-scale-refining-of-jewelers-waste-p-5934.html
Small Scale Refining of Jewelers Waste. This book explains in graphic details the refining of precious metal scraps containing such metals as gold, silver, platinum and palladium. Descriptions are for small scale recovery and refining operations. This book …
https://www.researchgate.net/publication/235243146_Small-scale_Recovery_of_Noble_Metals_from_Jewellery_Wastes
Small-scale recov ery of noble metals from jewellery w astes. allurgical and wet chemical refining procedures, such as the. Miller process, Wohwill electrolysis, leaching with nitric acid, and the...
https://www.bookdepository.com/Small-Scale-Refining-Jewelers-Wastes-Roland-Loewen/9780931913198
Dec 01, 1995 · Small Scale Refining of Jewelers Wastes by Roland Loewen, 9780931913198, available at Book Depository with free delivery worldwide.
https://www.saimm.co.za/Journal/v104n10p563.pdf
Small-scale recovery of noble metals from jewellery wastes allurgical and wet chemical refining procedures, such as the Miller process, Wohwill electrolysis, leaching with nitric acid, and the cupellation process (used in classical assaying of gold) for the recovery of gold from recycled materials. Chmielewsky and co-workers15 developed a process for gold reclamation from jewellery wastes that …
https://goldrefiningforum.com/phpBB3/viewtopic.php?t=12083
Jan 17, 2012 · A much neglected book on this forum is Loewen's, "Small Scale Refining of Jewelers Wastes." - 250 pages. I think it was written in the 70s and then re-published by Met-Chem in the 90s. I only recently bought it and thought it was excellent. Why I didn't buy it before is a …
https://www.lmine.com/assaying-processing-c-223_307/refining-precious-metal-wastes-p-7361.html
Legend Inc. Sparks, Nevada USA Refining Precious Metal Wastes [17205] - Softback ISBN: 0931913225 by C. M Hoke, 1940, 362 pages, (Softback) This book does not cover assaying of metals but does cover in detail the secondary refining of precious metals to permit their further employment in art, science, and industry. How to recover the precious metals from wastes products of jewelers, dentists ...
https://www.finishing.com/581/95.shtml
Jan 17, 2012 · "Small Scale Refining of Jewelers Wastes" by Roland Loewen and "Gold Refining" by George Gajda. Check Amazon.com for these titles => Your problem may be excess nitric acid. As long as the Aqua Regia contains nitric acid, the gold will not precipitate and will stay in solution.
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