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Microwave Pretreatment Of A Double Refractory Gold Ore . However there is no information published on the microwave processing of the double refractory gold ores In this paper microwave pretreatment of a double refractory gold ore was investigated as an alternative method and the results are compared to conventional roasting 3 Experimental 31 Ore sample A lowgrade sample of a double refractory ...
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Pretreatment Microwave Pretreatment Of A Refractory Gold Welcome To our Company. We are a largescale manufacturer specializing in producing various mining machines including different types of sand and gravel equipment, milling equipment, mineral .
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Abstract Double refractory gold ores, such as Barrick''s Goldstrike ore, contain both pyrite and carbonaceous matter and the latter results in the loss of gold from solution during cyanide leaching. One possible remedy is to roast the ore and thus oxidize the pyrite and remove the organic carbon. In this research, microwave roasting of a double refractory gold ore was investigated as an ...
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Processing progress Jul 01, 2001· Recovery of gold from refractory ores requires a pretreatment step, usually oxidation, to liberate the gold particles from the host mineral Goldbearing refractory stibnite, for example, is pyrometallurgically treated to recover antimony in a .
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decomposition before gold leaching is called pretreatment of refractory gold. Statistics show that, in the world, about 2/3 gold resource belongs to the difficult processing ores, and about 1/3 total output of world gold is produced from refractory gold. This proportion .
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The microwave pretreatment of a typically refractory flotation gold concentrate was investigated. The results demonstrated that a maximum gold recovery of 97% was achieved, and that gold ...
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The microwave pretreatment of a typically refractory flotation gold concentrate was investigated. The results demonstrated that a maximum gold recovery of 97% was achieved, and that gold recoveries of the refractory gold concentrate quickly increased to the maximum with microwave heating time. Adding additives during microwave heating process was helpful to improve the leaching rate of gold ...
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· Nanthakumar et al. (2007) investigated the use of microwave energy in pretreating a double refractory gold ore containing % sulphur and % total carbon. Wei et al (2009) applied microwave energy in a similar pretreatment of refractory gold ores and reported improvements in the subsequent gold extraction.
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In this research, microwave roasting of a double refractory gold ore was investigated as an alternative method and the results were compared to those obtained by conventional roasting. The compositional changes of the ore during roasting were determined by thermogravimetric analysis (TGA).
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microwave assisted pretreatment of refractory gold or pretreatment of refractory gold ore with microwav Carbonaceous gold ores are rendered amenable to a conventional cyanide recovery process by pretreatment with sodium hypochlorite or Used herein, the term carbonaceous ore refers to a refractory ore, that is, one apparatus for microwave induced pyrolysis of arsenical ores and ore .
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· With regards to the application of microwaves to refractory gold ores, Haque, 1987a, Haque, 1987b has studied the microwave pretreatment of refractory sulphidic ores and achieved gold extractions of over 98%. However, there is no information published on the microwave processing of the double refractory gold ores.
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Microwave pretreatment of a double refractory gold ore. Abstract Double refractory gold ores, such as Barrick''s Goldstrike ore, contain both pyrite and carbonaceous matter and the latter results in the loss of gold from solution during cyanide leaching.
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Microwave pretreatment of a double refractory gold ore ScienceDirect Double refractory gold ores, such as Barrick''''s Goldstrike ore, contain both pyrite and carbonaceous matter and the latter results in the loss of gold from sol.
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Abstract Double refractory gold ores, such as Barrick''s Goldstrike ore, contain both pyrite and carbonaceous matter and the latter results in the loss of gold from solution during cyanide leaching. One possible remedy is to roast the ore and thus oxidize the pyrite and remove the organic carbon. In this research, microwave roasting of a double refractory gold ore was investigated as an ...
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Double Refractory Gold Ores. Microwave pretreatment of a double refractory gold ore ... double refractory gold ores, such as barricks goldstrike ore, contain both pyrite and carbonaceous matter and the latter results in the loss of gold from solution during cyanide leaching. gtgtchat online
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Download Citation | Microwave pretreatment of a double refractory gold ore | Double refractory gold ores, such as Barrick''s Goldstrike ore, contain both pyrite and carbonaceous matter and the ...
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Pretreatment Process on Refractory Gold Ores with As. Jun 24, 2017· Gold ores are considered refractory if gold extractions from a conventional cyanidation process are less than 80% even after fine grinding 1) Arsenicbearing refractory gold ore has stones extremely difficult to deal with In the stones, gold is locked up in arsenic mineral matrix as the form of microscopic or submicroscopic ...
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Download Citation | Study on microwave pretreatment of refractory microdimensional gold packaged by pyrite in gold ores | By using the heating feature of microwave, it has shown from condition ...
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Download Citation | Study on microwave pretreatment of refractory microdimensional gold packaged by pyrite in gold ores | By using the heating feature of microwave, it has shown from condition ...
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Microwave pretreatment of a double refractory gold ore ... Abstract Double refractory gold ores, such as Barrick''s Goldstrike ore, contain both pyrite and carbonaceous matter and the latter results in the loss of gold from solution during cyanide leaching.
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Gold ores are considered refractory if gold extractions from a conventional cyanidation process are less than 80% even after fine grinding. 1) Arsenicbearing refractory gold ore has stones extremely difficult to deal with. In the stones, gold is locked up in arsenic mineral matrix as the form of microscopic or submicroscopic lattice.
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Microwave pretreatment of a double refractory gold ore. Sep 01 2007 · Microwave pretreatment of a double refractory gold ore One possible remedy is to roast the ore and thus oxidize the pyrite and remove the organic carbon In this research microwave roasting of a double refractory gold ore was investigated as an alternative method and the results were compared to those obtained by ...
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The treatment process of a lowgrade refractory gold ore containing sulfide minerals and carbonaceous matters was studied in this work. The gold extraction of this ore by allsliming cyanidation was only %. Hence, a pretreatment was necessary. In this paper, a flotationpreoxidationcyanide leaching process was developed.
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The microwave pretreatment of a typically refractory flotation gold concentrate was investigated The results demonstrated that a maximum gold recovery of 97% was achieved and that gold recoveries of the refractory gold concentrate quickly increased to the maximum with microwave heating time Adding additives during microwave heating process was helpful to improve the leaching rate of gold
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