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2. Miller process - Wikipedia

   en.wikipedia.org/wiki/Miller_process

   The resulting gold is 99.5% pure, but of lower purity than gold produced by the other common refining method, the Wohlwill process, which produces gold of up to 99.999% purity. [1] [2] The Wohlwill process is commonly used for producing high-purity gold, such as in electronics work, where exacting standards of purity are required.

3. Wohlwill process - Wikipedia

   en.wikipedia.org/wiki/Wohlwill_process

   The Wohlwill process is an industrial-scale chemical procedure used to refine gold to the highest degree of purity (99.999%). [1] The process was invented in 1874 by Emil Wohlwill . This electrochemical process involves using a cast gold ingot , often called a doré bar , of 95%+ gold to serve as an anode .

4. 5 Things You Shouldn’t Buy from Home Depot Until After the ...

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   3. Furniture and Home Decor. For many people, the holidays are for home makeovers, but it may not be a good time to buy furniture and home decor. Whether you’re shopping for a cozy couch or ...

5. Gold extraction - Wikipedia

   en.wikipedia.org/wiki/Gold_extraction

   Gold occurs principally as a native metal, i.e., gold itself.Sometimes it is alloyed to a greater or lesser extent with silver, which is called electrum.Native gold can occur as sizeable nuggets, as fine grains or flakes in alluvial deposits, or as grains or microscopic particles (known as colour) embedded in rock minerals.

6. 5 Home Depot Items Homeowners Need To Buy Ahead of ... - AOL

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   The Shark Stratos AZ3000 Upright Vacuum with duo clean power fins, hair pro and odor neutralizer technology is a Home Depot special buy at $299.99 — $200 off the original price.

7. Surprising Things You Can Buy at Home Depot - AOL

   www.aol.com/surprising-things-buy-home-depot...

   Home Depot is a wonderland of utilities. From tools and materials to tips, it's almost guaranteed that you'll find the help you're looking for there. Dollar Tree: 5 High-Quality Items To Buy ...

8. Electrowinning - Wikipedia

   en.wikipedia.org/wiki/Electrowinning

   Apparatus for electrolytic refining of copper. Most metal ores contain metals of interest (e.g. gold, copper, nickel) in some oxidized states and thus the goal of most metallurgical operations is to chemically reduce them to their pure metallic form. The question is how to convert highly impure metal ores into purified bulk metals.

9. 5 Small Appliances You Shouldn’t Buy at Home Depot - AOL

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   Home Depot may be a one-stop shop for all of your home improvement needs, but, when considering personal finances, there are certain things you should not buy at the retailer -- including small...