·The common pretreatment methods for antimony gold ore mainly include roasting and chemical alkali leaching 1 Roasting method Roasting is a common method for the oxidative pretreatment of antimony containing gold ore Through roasting the physical structure of the ore changes producing loose and porous roasted sand
·Without knowing a great deal about the ore in question you re not likely to get much useful advice here Extracting gold and silver from ores isn t a cut and dried process there are many ways to achieve the end each dependent on the type of ore
·Nitric acid reacts with sulphides to give free Sulphur The Nitrate salt of any base metals and free Gold In 1970 some friends sent me a wash tub full of pyrite from a Gold mine in Colorado that had been closed since the 19th
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·Refractory gold Roasting CFB ; CIL Dry grinding Designed to handle elemental sulfur as alternative to sulfide conc Converted to two stage roast Magnetic separation of gold occluding maghemite from calcine with concentration Shipped to Twin Creeks POX/CIL plant 50 Twin Creeks Nevada United States Fine grind; POX Fine grind to P80
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·Before roasting store fresh baby gold potatoes in a cool dark place such as a pantry or a root vegetable cellar Keep them in a breathable storage container or a paper bag to prevent moisture buildup which can cause the potatoes to spoil prematurely
·Flotation may also prove to be the more economical process for an ore containing such minerals as stibnite copper bearing sulphides tellurides etc which require roasting before cyanidation since it reduces the tonnage passing through the furnace to a fraction of the original feed with considerable reduction of working costs in consequence
·Where a high sulphide recovery is demanded flotation methods are now in general use but in the days before flotation was known a large part of the world s gold was recovered by concentrating the gold bearing sulphides on tables and smelting or regrinding and amalgamating the product Though the modern trend is away from the use of tables
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