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2. Elemetal - Wikipedia

   en.wikipedia.org/wiki/Elemetal

   In 2015, Bill LeRoy, the president of Ohio Precious Metals was named the company's CEO and the company changed its name to Elemetal. In March 2017, Juan P. Granda a former employee of NTR Metals, Miami was charged with buying gold from illegal mines in Peru. [ 1 ]

3. Atlas Machine and Supply, Inc. - Wikipedia

   en.wikipedia.org/wiki/Atlas_Machine_and_Supply,_Inc.

   The company's headquarters is located in Louisville, Kentucky and consists of a machine shop totaling more than 100,000 square feet. [4] Additional facilities are located in Cincinnati, Ohio; Columbus, Ohio; Evansville, Indiana; Indianapolis, Indiana; Lexington, Kentucky; Harned, Kentucky; and Nashville, Tennessee.

4. Gold extraction - Wikipedia

   en.wikipedia.org/wiki/Gold_extraction

   Cyanide leaching "heap" at a gold mining operation near Elko, Nevada. On top of the large mounds of ore, are sprinklers dispensing a solution of cyanide. Gold extraction is the extraction of gold from dilute ores using a combination of chemical processes. Gold mining produces about 3600 tons annually, [1] and another 300 tons is produced from ...

5. Cenovus Energy to Buy Remaining Stake in Ohio Refinery for ...

   www.aol.com/news/cenovus-energy-buy-remaining...

   Cenovus Energy Inc. agreed on Aug. 8 to purchase the remaining stake in the BP-Husky Toledo Refinery located in Ohio for $300 million in cash. The Canadian company has owned 50% of the refinery ...

6. Engelhard - Wikipedia

   en.wikipedia.org/wiki/Engelhard

   An Engelhard silver bar An Engelhard poured 2 oz 99.99% pure gold bar. Engelhard Corporation was an American Fortune 500 company headquartered in Iselin, New Jersey, United States. It is credited with developing the first production catalytic converter. In 2006, the German chemical manufacturer BASF bought Engelhard for US$5 billion.

7. Fernald Feed Materials Production Center - Wikipedia

   en.wikipedia.org/wiki/Fernald_Feed_Materials...

   Its small size meets geometry limits for nuclear safety. Decladding: a rubber-lined tank was set up and used as needed to remove zirconium cladding from reject fuel cores. Equipment for removal of other metals, such as steel or aluminum, was available also. UF 6 to UF 4 Production Facility: conversion UF 6 to UF 4 using cracked ammonia. HF was ...

8. Gold mining - Wikipedia

   en.wikipedia.org/wiki/Gold_mining

   Cyanide leaching "heap" at a gold mining operation near Elko, Nevada. On top of the large mounds of ore, are sprinklers dispensing a solution of cyanide. The dominant method for refining gold is a cyanide extraction method, or gold cyanidation, introduced in the late 1800s. This a metallurgical technique used to extract gold from lower grade ...

9. Cupellation - Wikipedia

   en.wikipedia.org/wiki/Cupellation

   16th century cupellation furnaces (per Agricola). Cupellation is a refining process in metallurgy in which ores or alloyed metals are treated under very high temperatures and subjected to controlled operations to separate noble metals, like gold and silver, from base metals, like lead, copper, zinc, arsenic, antimony, or bismuth, present in the ore.