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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.
In March 2017, Juan P. Granda a former employee of NTR Metals, Miami was charged with buying gold from illegal mines in Peru. [1] In January 2018; Samer H. Barrage, Renato J. Rodriguez, and Juan P. Granda; three former employees of the now-defunct Florida-based NTR Metals Miami, were jailed for six years after they pleaded guilty to money ...
The 58-acre Brio Refinery site was home to several chemical companies between 1957 and 1982, when the owner, Brio Refinery Inc. declared bankruptcy and ceased operations. During that period, the site had been used for copper recovery and petroleum re-refining , typically the processing of tar , sludge , and other residue from oil tanks and ...
Element Fuels Holdings, a Dallas-area startup proposing to build the first all-new U.S. oil refinery in nearly 50 years, on Thursday said it was relaunching efforts to build a large plant in South ...
Motiva Enterprises owns and operates the Port Arthur Refinery in Port Arthur, Texas. On 25 May 2012, Motiva officially completed its expansion of the refinery to a capacity of 600,000 bbl/d (95,000 m 3 /d) making it the largest refinery in North America and the fifth largest in the world.
Craddock, P. T. 2000a Historical Survey of Gold Refining: 1 Surface Treatments and Refining Worldwide, and in Europe Prior to AD 1500. In A. Ramage and P. T Craddock (eds) King Croesus' Gold; Excavations at Sardis and the History of Gold Refining. London: British Museum Press, 27–53. ISBN 978-0-674-50370-0, 0-674-50370-8
In August BP plc (NYSE: BP) announced that it would sell its Carson, California, refinery to Tesoro Corp. (NYSE: TSO) for $2.5 billion. The sale was part of BP's effort to shed $38 billion in assets.
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