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- Merrill–Crowe_process abstract "The Merrill–Crowe Process is a separation technique for removing gold from a cyanide solution.The solution is separated from the ore by methods such as filtration (e.g. horizontal leaf type clarifiers) and counter current decantation (CCD). Afterwards a very clear solution is achieved by using pre-coated filters applying diatomaceous earth. Oxygen is then removed by passing the solution through a vacuum de-aeration column. Zinc dust is added to the clarified, de-aerated solution which precipitates the gold; zinc having a higher affinity for the cyanide ion than gold. Other precious metals, silver, and base metals, like copper, will also precipitate, if present. The gold precipitate (mixed with zinc dust) is then filtered out of the solution, and the zinc dust and gold are mixed with sulfuric acid to dissolve the zinc. The solution is filtered, and the remaining solids are smelted to a gold bullion bar. These bars are sent to a refinery to remove the copper and silver, the specific process used depending upon the impurities in the gold.The basic process was discovered and patented by Charles Washington Merrill around 1900, and later refined by Thomas B. Crowe, working for the Merrill Company.".
- Merrill–Crowe_process wikiPageID "1686506".
- Merrill–Crowe_process wikiPageLength "2375".
- Merrill–Crowe_process wikiPageOutDegree "20".
- Merrill–Crowe_process wikiPageRevisionID "583938969".
- Merrill–Crowe_process wikiPageWikiLink Carbon_in_pulp.
- Merrill–Crowe_process wikiPageWikiLink Category:Gold.
- Merrill–Crowe_process wikiPageWikiLink Category:Metallurgical_processes.
- Merrill–Crowe_process wikiPageWikiLink Charles_Washington_Merrill.
- Merrill–Crowe_process wikiPageWikiLink Chemical_affinity.
- Merrill–Crowe_process wikiPageWikiLink Copper.
- Merrill–Crowe_process wikiPageWikiLink Countercurrent_exchange.
- Merrill–Crowe_process wikiPageWikiLink Cyanide.
- Merrill–Crowe_process wikiPageWikiLink Diatomaceous_earth.
- Merrill–Crowe_process wikiPageWikiLink Electrowinning.
- Merrill–Crowe_process wikiPageWikiLink Filtration.
- Merrill–Crowe_process wikiPageWikiLink Gold.
- Merrill–Crowe_process wikiPageWikiLink Gold_cyanidation.
- Merrill–Crowe_process wikiPageWikiLink Ion.
- Merrill–Crowe_process wikiPageWikiLink Precipitation_(chemistry).
- Merrill–Crowe_process wikiPageWikiLink Silver.
- Merrill–Crowe_process wikiPageWikiLink Smelting.
- Merrill–Crowe_process wikiPageWikiLink Solution.
- Merrill–Crowe_process wikiPageWikiLink Sulfuric_acid.
- Merrill–Crowe_process wikiPageWikiLink Zinc.
- Merrill–Crowe_process wikiPageWikiLinkText "Merrill–Crowe process".
- Merrill–Crowe_process wikiPageUsesTemplate Template:Reflist.
- Merrill–Crowe_process subject Category:Gold.
- Merrill–Crowe_process subject Category:Metallurgical_processes.
- Merrill–Crowe_process hypernym Technique.
- Merrill–Crowe_process type TopicalConcept.
- Merrill–Crowe_process type Element.
- Merrill–Crowe_process type Process.
- Merrill–Crowe_process comment "The Merrill–Crowe Process is a separation technique for removing gold from a cyanide solution.The solution is separated from the ore by methods such as filtration (e.g. horizontal leaf type clarifiers) and counter current decantation (CCD). Afterwards a very clear solution is achieved by using pre-coated filters applying diatomaceous earth. Oxygen is then removed by passing the solution through a vacuum de-aeration column.".
- Merrill–Crowe_process label "Merrill–Crowe process".
- Merrill–Crowe_process sameAs Q1922015.
- Merrill–Crowe_process sameAs Merrill-Crowe-Prozess.
- Merrill–Crowe_process sameAs m.05nckx.
- Merrill–Crowe_process sameAs Q1922015.
- Merrill–Crowe_process wasDerivedFrom Merrill–Crowe_process?oldid=583938969.
- Merrill–Crowe_process isPrimaryTopicOf Merrill–Crowe_process.