Understanding selectivity in radio frequency and microwave sorting of porphyry copper ores

2021 ◽

pp. 3-16

Author(s):

A. N. Glukhov ◽

◽

V. V. Priymenko ◽

M. I. Fomina ◽

V. V. Akinin ◽

...

Keyword(s):

Porphyry Copper ◽

Gold Silver ◽

Copper Gold ◽

Polymetallic Mineralization ◽

Polymetallic Ore ◽

Copper Ores

The article presents new data on geology, mineralogy, and geochemistry of porphyry-copper, gold-silver, and silver-polymetallic ore occurrences in the Kongin magmatic zone of the Omolon terrane and granitoids, associated with it. It has been demonstrated that petrology and the age of granitoids are similar to those in the OCVB Penzhina segment. Mineralization of the Kongin zone is very close to that of the OCVB, differing in relatively high Mo in porphyry-copper ores and prevalence of silver-polymetallic mineralization over gold-silver.

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Material composition analysis and process flow development for the porphyry copper ores of the Yoshlik-1 deposit

Obogashchenie Rud ◽

10.17580/or.2021.05.02 ◽

2021 ◽

pp. 10-14

Author(s):

I. K. Umarova ◽

D. B. Makhmarezhabov ◽

Sh. Kh. Yuldashev

Keyword(s):

Porphyry Copper ◽

Material Composition ◽

Composition Analysis ◽

Process Flow ◽

Flow Development ◽

Copper Ores

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Bioleaching of Supergene Porphyry Copper Ores from Sungai Mak Gorontalo of Indonesia by an Iron- and Sulfur-Oxidizing Mixotrophic Bacterium

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.262.20 ◽

2017 ◽

Vol 262 ◽

pp. 20-23

Author(s):

Siti Khodijah Chaerun ◽

Frideni Yushandiana Putri ◽

Mohammad Zaki Mubarok ◽

Wahyudin Prawira Minwal ◽

Zela Tanlega Ichlas

Keyword(s):

Environmental Concern ◽

Porphyry Copper ◽

Environmentally Friendly ◽

Mineralogical Composition ◽

Extraction Process ◽

Appropriate Technology ◽

Copper Extraction ◽

Sulfur Oxidizing ◽

The Impact ◽

Copper Ores

Environmentally friendly mining technologies have to be developed extensively to avoid the impact of mining activities with respect to environmental concern. One example of such technology is bioleaching which has been developed worldwide and is regarded as an appropriate technology for the extraction of metals from polymetallic ores such as supergene porphyry copper ores, mainly consisting of secondary copper sulfides, including chalcocite (Cu2S), covellite (CuS), or oxide minerals, i.e., cuprite (Cu2O) and tenorite (CuO). The extraction process for this complex ore generally requires high temperature, high pressure and/or high acid concentration. For the economic extraction of valuable copper from such ores, the bioleaching of supergene porphyry copper ore from Sungai Max in Southeast Sulawesi of Indonesia was investigated in shake-flask experiments at room temperature (28 °C) for 14 days using an iron- and sulfur-oxidizing bacterium (Alicyclobacillus sp.) indigenous to an Indonesian mine site. The main mineralogical composition of gangue minerals contained in this ore sample included quartz, muscovite, kaolinite and alunite. The relatively high copper extraction efficiencies were obtained over a 14-day period of the bioleaching experiments as a function of pH, pulp density and NaCl concentration. Therefore, the findings of this study provide the first information of bioleaching process of supergene porphyry copper ores in Indonesia that may highly be useful for developing an economical and environmentally friendly extraction process of such complex ores.

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Improving the recovery of low grade coarse composite particles in porphyry copper ores

Advanced Powder Technology ◽

10.1016/j.apt.2011.04.003 ◽

2011 ◽

Vol 22 (4) ◽

pp. 464-470 ◽

Cited By ~ 10

Author(s):

Saeed Farrokhpay ◽

Igor Ametov ◽

Stephen Grano

Keyword(s):

Porphyry Copper ◽

Composite Particles ◽

Low Grade ◽

Copper Ores

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Understanding microwave induced sorting of porphyry copper ores

Minerals Engineering ◽

10.1016/j.mineng.2015.10.006 ◽

2015 ◽

Vol 84 ◽

pp. 77-87 ◽

Cited By ~ 14

Author(s):

R.S. John ◽

A.R. Batchelor ◽

D. Ivanov ◽

O.B. Udoudo ◽

D.A. Jones ◽

...

Keyword(s):

Porphyry Copper ◽

Copper Ores

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Volcanogenic Deposits of Non-ferrous Metals in the Lesser Caucasus and Eastern Pontides

Journal of Geological Research ◽

10.30564/jgr.v3i4.3572 ◽

2021 ◽

Vol 3 (4) ◽

Author(s):

S. Kekelia ◽

Nona Gagnidze ◽

I. Mshvenieradze ◽

G. Kharazishvili

Keyword(s):

Large Scale ◽

Genetic Model ◽

Porphyry Copper ◽

Mining District ◽

The Caucasus ◽

Copper Zinc ◽

Lesser Caucasus ◽

Volcanogenic Deposits ◽

Copper Ores ◽

Literature Material

The paper presents brief characteristics of geological environments of ore deposit occurrences in Turkey, Georgia and Armenia. They can be attributed to Kuroko-type deposits, being distinguished by the character of ore accumulation. To the west, in Turkey, there are epigenetic and hydrothermal-sedimentary copper-zinc deposits that were formed in deep restricted basinal settings. An example of the latter is the Chayeli deposit.To the east, in the Caucasus, we have predominantly only epigenetic deposits. Besides, in the Bolnisi mining district (Georgia) there is the Madneuli deposit which represents an example of polyformational deposit. Here, within the restricted territory, have been concentrated:barite, barite-polymetallic, gold-bearing secondary quartzite, large-scale stockworks of copper ores. Judged by the 87Sr/86Sr ratios, some volcanites which are spatially associated with ores, might have been products of the “differentiation” of undepleted mantle, or other magmas that were generated in the lower part of the earth crust.In the Alaverdi ore district in Armenia, there are Jurassic volcanodepressions that host copper, copper-zinc and barite-sulfide ores. All the deposits of the Alaverdi district, porphyry copper including, contain economic reserves of ores.On the basis of available literature material and our own data, there has been created a mental-logical geological-genetic model of volcanogenic deposits.

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