success of floatation in copper tailings
Liquefaction of Mine Tailings
oil sand composite consolidated tailings and copper tailings. Some of the basic properties and laboratory tests that can be conducted on mine tailings in order to better predict the behavior of the tailings are presented. Also, the tests that were conducted by Qiu and Sego (2001)...
Characterization and Flotation of Sulfur from Chalcopyrite ...
flotation tailings and can be readily recovered by flotation with different flotation reagents. When amyl xanthate is used, 85% of chalcopyrite can be recovered with a copper grade of % in a singlestage froth flotation. The chalcopyrite flotation concentrate can be sent back to chloride leaching circuits....
REVEGETATION OF NINE SQUARE MILES OF COPPER .
Approximately 300 million tons of copper ore (chalcocite {Cu2S}) from the Nonsuch Shale formation were mined underground and processed (crushing and sulfide flotation). Tailings were discharged during the operations into three separate impoundments identified as North Pond 1, North Pond 2, and South Pond. The tailings were deposited...
Method of floatation dressing of aged tailings of ...
Floatation dressing method for aged tailings of polymetallic or copperzinc sulfide ores involves main and reference copperlead or copper floatation in the presence of isopropylethylthiocarbamate, ammonium dibuthyldithiophosphate and methylisobuthylcarbinol ing agent....
Kinetics Studies on Effect of Recycled Water on Flotation ...
Improved flotation kinetics in first recycling of Melbourne and deionised waters were observed. Three recycles of mine water in the flotation process indicated a steadystate rate for copper tailings. This was not valid for Melbourne and deionised waters where flotation was inhibited successively by ....
CHARACTERIZATION AND DEWATERING OF FLOTATION .
The tailings particle size distributions and chemical compositions were determined. The data from laboratory and pilot scale tests clearly illustrate that there are the possibilities to obtaine leadzinc dewatered tailings. The experimental results show that new cyclone modifications have a potential in dewatering technology of flotation tailings....
Potential for Recovery of Rutile and Other Byproducts From ...
rutilebearingCu mill tailings was developed by Llewellyn and Sullivan (!). The success of that investigation led to this research, which sought to deter mine the feasibility of rutile recovery from other western copper mines. Eleven companies, some of which wished to remain anonymous, cooperated in this study, submitting a total of 15 flotation...
PyriteGold Recovery in Copper Rougher Flotation Tailings
on its flotation was studied in a typical copper ore. A twostage (Cu and pyrite) rougher flotation indicated that maximum Au recovery (95%) can only be achieved with pyrite flotation (recovery, 93%). A decrease in grind size of the flotation feed from 70 µm to 38 µm and without pyrite flotation stage...
Studies of contact angles on oxidized copper minerals
In the concentration of copper ores by flotation, the major loss of unrecovered mineral in the tailings is caused by the ineffective floata bility and recovery of the oxide copper minerals. That the industry would benefit greatly, ifmore of the oxide minerals were recovered, is evident when the large tonnages treated are considered....
GoldPyrite ores Danafloat Home
GoldPyrite ores. Natural pH is recommended for gold flotation. Alternatively using soda ash for pH adjustment can reduce gold depression. Where gold is associated with pyrite in base metal ores where iron sulphides are depressed and report to the tailings, a separate tailings pyrite flotation concentrate should be considered....
Chronology of major tailings dam failures Uranium
tailings dam failure 40,000 m 3 of copper sulphate flow into the 420kmlong Bacanuchi river waterway, a tributary of the Sonora River, directly affecting 800,000 people 2014, Aug. 4 Mount Polley mine, near Likely, British Columbia, Canada Imperial Metals Corp. copper, gold tailings dam failure due to foundation failure (view details)...
processing of copper tailings
To accurately identify minerals within tailings, geologists turn to analytical ... to process 350,000 tons of slimes from its extensive tailings resources. ... million ounces of gold and 60,000 tons of copper left in the tailings at the......
Dewatering of Copper Flotation Tailings: Effect of Feed ...
Aqueous slurries' dewatering using gravitydriven thickeners is an essential unit operation in mineral processing. Thickener feed dilution is often used for enhanced flocculation and sediment compressibility. This work investigated the effect of feed dilution ....
Treatment of copper mine tailings using a y, A^M Email ...
(since the concentration of copper in those tailings is within ore classification) fall into three distinct categories: • FlotationPyroMetallurgical : The copper is separated from the gang material using froth flotation, collected and dewatered using Alteration and subsequently sent to a smelting operation....
The effect of tailings characteristics on cover system success
General observations regarding vegetation success on reclaimed copper tailings in the southwestern United States are as follows. Organic amendments can be successfully used to reclaim circumneutral tailings, however, low to moderate amendment rates should be used to limit highnutrient conditions that favor for undesirable nonnative species....
Estimated Water Requirements for the Conventional ...
Estimated Water Requirements for the Conventional Flotation of Copper Ores . By Donald I. Bleiwas . Introduction . This report provides a perspective on the amount of water used by a conventional copper flotation plant, including the makeup water required to compensate for water losses. Much of the global...
Management of Tailings and WasteRock in Mining .
Management of tailings and wasterock in mining iii Some parts of the mining industry, such as metal and coal mining within Europe, operate under severe economic conditions, mainly because the deposits can no longer compete on an...
Improved Copper and Gold Recovery at Robinson color
about 30% of the copper in the plant tailings at a concentrate grade of nearly 15%. This finding was consistent with the findings from another copper concentrator wherein a row of four XCELL™ flotation machines have produced excellent recoveries at relatively high concentrate grades....
pH/ORP measurement Copper flotation process
Copper flotation process Mining – separating minerals by flotation Measurement made easy — Introduction The flotation process can separate a required mineral such as copper, nickel, molybdenum or zinc from ore. Flotation can separate this mineral from waste materials or from another mineral. The process starts with crushed ore. A ball mill...