concentrating gold sulfide ore

Problem with gold recovery from sulphide ore How may a mill get the maximum recovery of gold from a sulphide ore at the least capital cost and at the same time obtain the highest net return This latter point is most important In many cases a gold mill using an allcyanide flowsheet with fine grinding of all the ore will report very low gold content in the tailings particularly on an

Dec 29 2016 · Gold Flotation Process is use to process fine gold high floatability of sulfide goldbearing quartz veins ore multi metal goldcontaining sulfide ore and carboncontaining ore

Gold processing Gold processing Mining and concentrating The nature of the ore deposit determines the mining and mineral processing techniques applied Oxide ore deposits are frequently of such low grade eg 3 to 10 parts per million that extensive mineral processing cannot economically be justified In this case they are merely shattered by explosives and then piled into heaps for

Flotation is also used for the removal of interfering impurities before hydrometallurgical treatment for the upgrading of low sulfide and refractory ores for further treatment Flotation is considered to be the most costeffective method for concentrating gold Flotation process maximizes the enrichment of gold into sulfide minerals

The types of gold veins 102620 81 Views icon 0 The types of gold veins The gold mining process is usually determined by the physical chemical and mineralogical properties of the gold ore and gangue For example gold ore with a large difference in specific gravity and coarse disseminated grain size is generally treated by gravity separation differences in mineral surface wettability

The present invention is directed to flotation of refractory gold sulfide ores in which the ore is ground floated the tailings reground and refloated to produce goldbearing concentrates US20090074607A1 Process for recovering gold and silver from refractory ores Google Patents

US1421585A US43703021A US1421585A US 1421585 A US1421585 A US 1421585A US 43703021 A US43703021 A US 43703021A US 1421585 A US1421585 A US 1421585A Authority US United States Prior art keywords flotation ore sulfide zinc cyanide Prior art date 19210113 Legal status The legal status is an assumption and is not a legal conclusion

Treating high sulfide ore is a difficult proposition and in the article below Ill take a look at all of the best known possibilities for getting the gold and other valuable minerals out of those difficult rebellious ores and producing a clean saleable bullion product

Flotation is a method that is widely used in gold ore processing plant to process the rock gold commonly used in dealing with highly floatable sulfide minerals containing gold ore Flotation process can maximum enrich gold to the sulfide mineral tailings can be abandoned directly the cost of processing plant is low 80 of Chinas rock gold are used in this method

Recovery of gold in sulfide ores has fallen into several categories First is froth flotation and second is cyanidation of the ores Using cyanide to recover gold from sulfide ores generally results in 30 to 35 recovery and the best I have heard of is around 50 recovery

Recovery of gold in sulfide ores has fallen into several categories First is froth flotation and second is cyanidation of the ores Using cyanide to recover gold from sulfide ores generally results in 30 to 35 recovery and the best I have heard of is around 50 recovery

Flotation is also used for the removal of interfering impurities before hydrometallurgical treatment for the upgrading of low sulfide and refractory ores for further treatment Flotation is considered to be the most costeffective method for concentrating gold Flotation process maximizes the enrichment of gold into sulfide minerals

Jun 26 2019 · All sulfide ores will respond differently to milling some will have the sulfides liberated at a coarse grind size others will need fine milling to achieve liberation If you are serious about concentrating the ore then the above are your gravity options 6 oz ore is rich and rare what you need to know is where in the ore is the gold

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 1175 Hence a pretreatment was necessary In this paper a flotationpreoxidationcyanide leaching process was developed

Gold in carbonaceous sulfide ores is usually recovered by preoxidation followed by cyanidation with or without prior concentration by flotation Gold recovery from the carbonaceous sulfide ore is more difficult not only because the gold is finegrained and locked in sulfide

Blasting crushing and grinding are necessary to liberate the gold for recovery Hard rock gold deposits have three subclasses freemilling sulfideassociated and refractory FreeMilling Gold Gold ore is considered freemilling when it is easily liberated by grinding and separated from the other minerals

MG Aylmore in Gold Ore Processing Second Edition 2016 511 Platsol Process The Platsol process was originally developed in collaboration with the University of British Columbia Kane Consultants Ltd and Lakefield Research in Canada for the treatment of flotation sulfide concentrate for Polymet Mining Company in Minnesota and was tested on similar types of concentrate materials

Many sulfide ores including Carlintype gold ores 7 Arsenic sulfide ores Gold occurs as liberated particles and inclusions and submicroscopic gold in arsenopyrite and oxidized products Giant Yellowknife Campbell Mine Canada Sao Bento Brazil and Carlintype ores 8 Antimony sulfide ores Gold occurs mainly as native gold with minor

A diagnostic leach test can be very useful to qualitatively assess how gold occurs within the ore and the extent to which it may be refractory Several different permutations of diagnostic leach tests depend on specific objectives but they generally involve the sequential leaching of a gold ore sample with progressively stronger reagents producing a qualitative assessment of the gold

Feasibility design NI 43101 input 8000 metric tonnes per day sulfide processing expansion to an existing 15000 metric tonnes per day oxide heap leach

1 Types of copper sulfide ore 1 Single copper mineral Its ore characteristic is relatively simple and the only useful component that can be recycled is copper The gangue minerals are mainly quartz carbonate and silicate 2 Coppersulfur ore Called copperbearing pyrite In addition to copper minerals iron sulfide can be recovered and the main mineral of sulfur is pyrite

Jun 26 2019 · All sulfide ores will respond differently to milling some will have the sulfides liberated at a coarse grind size others will need fine milling to achieve liberation If you are serious about concentrating the ore then the above are your gravity options 6 oz ore is rich and rare what you need to know is where in the ore is the gold

Con centrations of invisible gold range from less than 05 ppm to greater than 1000 ppm in sulfide grains from 12 ore deposits as determined by ionprobe microanalysis Secon dary Ion Mass

Processing Gold from Sulfide Ores Assaying Microscopy 4 Apr 2017 We are trying to process gold from arsenopyrite and chalcopyrite ore Our XRF indicated that there was a high concentration of gold along with Chat Online Processing technologies for goldtelluride ores to render the gold ores amenable to extraction

The types of gold veins 103020 73 Views icon 0 The gold mining process is usually determined by the physical chemical and mineralogical properties of the gold ore and gangue For example gold ore with a large difference in specific gravity and coarse disseminated grain size is generally treated by gravity separation differences in mineral surface wettability Large and finely

gold processing Mining and concentrating Britannica Online The nature of the ore deposit determines the mining and mineral processing techniques applied Oxide ore base metal sulfide goldbearing ores and »More detailed

chinese antiomny sulfide ore concentrating equipment chinese antimony sulfide ore concentrating equipment antimony and copper ore flotation equipment ore processing Midas Gold The processing will result in production of an antimony concentrate and a ore will be fed direct to vat leach and bypass flotation see Figure 101 reagents copper sulfate or equivalent is used as an activator to

Copper processing is a complicated process that begins with mining of the ore less than 1 copper and ends with sheets of 9999 pure copper called cathodes which will ultimately be made into products for everyday most common types of ore copper oxide and copper sulfide undergo two different processes hydrometallurgy and pyrometallurgy respectively due to the different