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Treatment Refractory Copper Ores

Apr 27 2007 1991. Treatment of Oxidized Copper Ores with Emphasis on Refractory Ores. Mineral Processing and Extractive Metallurgy Review Vol. 7 No. 3-4 pp. 175-207.

  • Treatment of Oxidized Copper Ores with Emphasis on Treatment of Oxidized Copper Ores with Emphasis on

    Apr 27 2007 1991. Treatment of Oxidized Copper Ores with Emphasis on Refractory Ores. Mineral Processing and Extractive Metallurgy Review Vol. 7 No. 3-4 pp. 175-207.

  • PDF Treatment of a CopperRich Gold Ore by Ammonia PDF Treatment of a CopperRich Gold Ore by Ammonia

    The TORCO process or Treatment of Refractory Copper Ores involved a reduction roast using salt and coal of the refractory copper silicate ore in a fluid bed roaster to reduced the copper to the .

  • copper extraction refractory gold processes MC World copper extraction refractory gold processes MC World

    copper extraction refractory gold processes Leaching gold with a cyanide solution remains the most widely used hydrometallurgical process for the extraction of gold from ores and concentrates. Despite the difficulties and hazards of working with cyanide .

  • Treatment of refractory carbonaceous and sulfidic ores or Treatment of refractory carbonaceous and sulfidic ores or

    The recovery of precious metals from refractory carbonaceous and sulfidic ores or concentrates is improved by subjecting an oxidized slurry of this type of ore to thiourea leaching in the presence of carbon instead of subjecting the slurry to cyanidation leaching.

  • Mineralogy and Pretreatment of a Refractory Gold Deposit Mineralogy and Pretreatment of a Refractory Gold Deposit

    Copper sulfate and sulfuric acid can activate pyrite and arsenopyrite and enhance their floatability so as to improve recovery of the gold deposit . Gold-bearing pyrite and arsenopyrite account for a considerable proportion of refractory gold-bearing sulfide ores.

  • Treatment of copperrich gold ore by cyanide leaching Treatment of copperrich gold ore by cyanide leaching

    tested for the treatment of copper-rich gold ores. Table 1 Solubility of copper minerals in 0.1 NaCN solution 12 wCu dissolved Mineral Formula . copper content renders the ore refractory in character due to the low gold extraction in direct cyanidation 1.5 gL NaCN 612.

  • PDF Bacterial leaching as a pretreatment step for gold PDF Bacterial leaching as a pretreatment step for gold

    Refractory gold-bearing ores a review of treatment methods and recent advances in biotechnological techniques By Francisco Carranza Biohydrometallurgy and Biomineral Processing TechnologyA Review on its Past Present and Future

  • Treatment of copperrich gold ore by cyanide leaching Treatment of copperrich gold ore by cyanide leaching

    tested for the treatment of copper-rich gold ores. Table 1 Solubility of copper minerals in 0.1 NaCN solution 12 wCu dissolved Mineral Formula . copper content renders the ore refractory in character due to the low gold extraction in direct cyanidation 1.5 gL NaCN 612.

  • INVESTIGATION OF THE AMENABILITY OF A COPPER INVESTIGATION OF THE AMENABILITY OF A COPPER

    cyanidation of refractory gold ores to enhance gold recoveries. Potential options for the treatment of copper-rich gold ores in particular include the removal of copper sulphides by flotation followed by cyanide leaching the elimination of copper in acidalkaline solutions

  • Mineralogy and Pretreatment of a Refractory Gold Deposit Mineralogy and Pretreatment of a Refractory Gold Deposit

    Copper sulfate and sulfuric acid can activate pyrite and arsenopyrite and enhance their floatability so as to improve recovery of the gold deposit . Gold-bearing pyrite and arsenopyrite account for a considerable proportion of refractory gold-bearing sulfide ores.

  • Treatment of refractory carbonaceous and sulfidic ores or Treatment of refractory carbonaceous and sulfidic ores or

    The recovery of precious metals from refractory carbonaceous and sulfidic ores or concentrates is improved by subjecting an oxidized slurry of this type of ore to thiourea leaching in the presence of carbon instead of subjecting the slurry to cyanidation leaching.

  • Refractory Gold SGS Refractory Gold SGS

    The other parameter that SGS experts consider when designing refractory gold treatments is whether or not to preconcentrate the gold-bearing ore. This is usually done by flotation of arsenopyrite pyrite or other gold-bearing sulfides. To be economically justifiable preconcentration should meet two objectives.

  • Options to Treat Refractory Ores Home Albion Process Options to Treat Refractory Ores Home Albion Process

    options for treating more complex orebodies as the less refractory ores become depleted. Demonstration of economic treatment options allows gold companies to maintain and increase their ore reserves. Refractory gold ores are those that do not yield high gold recoveries in conventional cyanide-

  • The treatment of refractory copper ores by the segregation The treatment of refractory copper ores by the segregation

    The treatment of refractory copper ores by the segregation process . N. Pinkney E.T. amp; Plint; N. Pinkney E.T. amp; Plint. Search for more papers by this author . Affiliations. 1 Anglo American Corporation of South Africa Ltd Johannesburg. Anglo American Corporation of South Africa Ltd

  • The treatment of refractory copper ores by the segregation The treatment of refractory copper ores by the segregation

    The segregation process discovered accidentally in 1923 by Moulden and Taplin of the Mineral Separations Company consists in heating to temperatures above 600 C a mixture of oxide copper minerals with small amounts of halogen-bearing material such as sodium chloride and a reducing agent such as coal or coke.

  • copper gold ore treatment copper gold ore treatment

    Coppergold ores that require uneconomically high quantities of cyanide to process due to the solubility of copper in cyanide. A multitude of other unfavorable constituents including pyrrhotite tellurides antimony and arsenic. It should be noted that most of the refractory ore treatment

  • US4559209A Leaching refractory gold ores Google Patents US4559209A Leaching refractory gold ores Google Patents

    A method is disclosed for leaching a gold ore which is refractory due to the presence of sulphide minerals of arsenic and antimony. The ground ore is leached with cyanide in a pipe reactor at a pressure of between 5 and 8 MPa. The terminal pH value of the pulp is controlled to be 10 or less than 10.

  • treatment of copper ores grinding mill chandigarh treatment of copper ores grinding mill chandigarh

    copper sulfide flotation - mineral processing amp; metallurgy . Apr 13 2016 Flowsheet for treatment of Copper Sulfide ores rich in minerals such as chalcopyrite with gold and silver as well as arsenopyrite. The above flowsheet is designed for the treatment by flotation of copper

  • Options to Treat Refractory Ores Home Albion Process Options to Treat Refractory Ores Home Albion Process

    options for treating more complex orebodies as the less refractory ores become depleted. Demonstration of economic treatment options allows gold companies to maintain and increase their ore reserves. Refractory gold ores are those that do not yield high gold recoveries in conventional cyanide-

  • Treatment Of Copper Ores Treatment Of Copper Ores

    Minerals Beneficiation - Treatment of Refractory Copper Ores by the Segregation Process - Document Summary. Read more. Hydrometallurgical treatment of Haib copper ore. Hydrometallurgical treatment of Haib copper ore Mintek MINTEK conducted a comprehensive four-part amenability programme intended to identify the parameters required to.

  • GoldPM Conference GoldPM Conference

    More ore bodies have been found where the gold is not amenable to simple cyanidation alone. In the simplest of terms these are refractory ores. The best choice of a processing route to treat a refractory ore will in most cases be site specific due mainly to the metallurgical and mineralogical characteristics of the ore.

  • Extract copper and gold from lowgrade ores  FLSmidth Extract copper and gold from lowgrade ores FLSmidth

    Extract copper and gold from low-grade ores more efficiently. Ore deposits are becoming increasingly complex to treat and grades continue to deteriorate in known reserves. For instance approximately 15-20 per cent of the worlds current gold production involves refractory ores that must be pre-treated prior to downstream recovery by cyanidation.

  • Pretreatment Process on Refractory Gold Ores with As Pretreatment Process on Refractory Gold Ores with As

    The research of bacterial peroxidation is quite active. The technology started to process ores in the 1950 s and at first leached to recovery copper from the low-grade copper ore or marginal copper ore. In the mid-1980 s the first commercial plant which applied bacterial oxidation to pretreat refractory gold ores was built in South Africa.