copper extraction by thiobacillus ferrooxidans

  • Microbial Leaching of Uranium Ore InTechOpen

    Sep 9, 2011 ... particularly from ores of copper, cobalt, nickel, zinc and uranium. .... extract) inhibited pyrite oxidation from Thiobacillus ferrooxidans. Certain...

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  • Impact of Solvent Extraction Organics on Bioleaching by ...

    Acidithiobacillus ferrooxidans (At. ferrooxidans) has been investigated. The results ... Key words: Copper solvent extraction; LIX984N; Adsorption; Bioleaching;...

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  • Comparsion of bioleaching of copper sulphides by Acidithiobacillus ...

    Jan 29, 2014 ... surface of minerals. Key words: Bioleaching, copper sulphides, Acidithiobacillus ferrooxidans, cell density, copper extraction. INTRODUCTION.

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  • Attachment of Acidithiobacillus ferrooxidans and Bioleaching of ...

    Small quantities of organic substances are inevitably entrained and dissolve in the aqueous raffinate during a copper solvent extraction (SX) operation.

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  • Innovations: Introduction to Copper: Mining & Extraction

    Mining of copper ores is carried out using one of two methods. ... with naturally occurring Thiobacillus Thiooxidans and Thiobacillus Ferrooxidans bacteria.

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  • Thiobacillus Ferrooxidans Hydrometallurgy: Leaching in Heap, Vat ...

    Apr 4, 2017 ... I've heard that the culture of T ferrooxidans alone is inefficient. ... bacterial organism present in Mining Company Bor resources (copper ores,...

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  • Leaching Heavy Metals from Contaminated Soil by Using ...

    Iron and sulfur oxidizing bacteria identi®ed as Thiobacillus ferrooxidans and T. ... with T. ferrooxidans strains resulted in total extraction of Cd, Co, Cu, and Ni.

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  • Copper Mining Using Acidothiobacillus microbewiki

    Jul 23, 2011 ... 2.1 Heap Irrigation; 2.2 Copper Extraction from Leach Liquor .... Ferroni GD (1994) The chemolithotrophic bacterium Thiobacillus ferrooxidans.

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  • Copper Bioleaching in Chile MDPI

    Mar 16, 2016 ... Keywords: bioleaching; copper production; large scale; sulfide minerals ..... formerly known as Thiobacillus ferrooxidans, were done by Manuel...

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  • New Copper Resistance Determinants in the Extremophile ...

    Dec 31, 2013 ... Acidithiobacillus ferrooxidans is an extremophilic bacterium used in ... for cysteine production was observed in the presence of copper,...

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  • Biomining: How microbes help to mine copper BBC News BBC

    Mar 21, 2012 ... At Chilean firm Biosigma, bacteria is used to extract copper from rocks, ... are full of microbes: Acidithiobacillus ferrooxidans and Thiobacillus...

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  • Exploitation of Bacterial Activities in Mineral Industry and ... Hindawi

    Nov 4, 2013 ... Acidithiobacillus ferrooxidans is the most important of the above species [79]. .... It is reported that typical copper extraction yields obtained by...

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  • Bioleaching of copper via iron oxidation from chalcopyrite at ...

    (CuFeS2) via iron oxidation using Acidithiobacillus ferrooxidans under ... of At. ferrooxidans could extract copper significantly better than non adapted cultures.

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  • Team:HNU China/Project 2014.igem

    In 1958 Kennecott Mining Company patented the use of Thiobacillus ferrooxidans for copper extraction from waste rock dumps at the Bingham Canyon mine in...

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  • Leaching of Copper Ore with Thiobacillus ferrooxidans

    The copper is extracted by spraying the middens with water. Bacteria, principally of the genus Thiobacillus which are ubiquitous in these ores grow on the...

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  • Extraction of metals from electronic waste by bacterial leaching

    preliminary results of experimental studies on the copper bioleaching from electronic waste with the participation of Acidithiobacillus ferrooxidans bacteria. 1.

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  • Bioleaching of lowgrade copper sulfide ores by Acidithiobacillus ...

    chalcopyrite by Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans. ... It is found that the copper extraction yield is affected by the inoculum size and...

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  • Bioleaching of low grade copper sulfide ores by Acidithiobacillus ...

    It is found that the copper extraction yield is affected by the inoculum size and the pulp density and ... ferrooxidansAcidithiobacillus thiooxidanscopper sulfide ore.

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  • Bacterial leaching of a sulfide ore by Thiobacillus ferrooxidans and ...

    grown 7: thiooxidans isolates leached Zn much more slowly and very little Fe, with a Cu Zn extraction ratio twice the value obtained with 7: ferrooxidans. The ore...

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  • Use of bioreactors in the leaching of an oxidized copper ore

    In the first methodology, cells of Acidithiobacillus thiooxidans were inoculated .... Results show very low copper extraction less than 1 % in agreement with the...

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  • Patent US20150027901 Biomining enhancement method Google ...

    Jan 29, 2015 ... Between 40 and 60% copper extraction was achieved in primary reactors and ... Acidithiobacillus ferrooxidans is able to oxidize the Cu+ in...

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  • bacteria thiobacillus ferrooxidans: Topics by Science.gov

    [Biomachining of metal copper by Thiobacillus ferrooxidans]. .... upon the procedures copper manufacturers employ to increase copper production is described.

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  • The Use of Thiobacillus Ferrooxidans Bacteria in the ... CiteSeerX

    The use of Thiobacillus ferrooxidans bacteria in the process of copper and iron ... Keywords: Thiobacillus ferooxidans, chalcopyrite, biological leaching of copper and iron ..... a Century of Bioleaching Copper at Andacollo, Mining Maga.

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  • Bacterial leaching of zinc and copper from mining ... ScienceDirect

    pulverized rock in 15 days and extracted copper completely from native ... Among the bacteria involved in bacterial leaching, Thiobacillus ferrooxidans has been.

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  • Environmental effects on bacterial copper extraction from lowgrade ...

    In bacterial extraction of copper from low grade copper sulfide ores, at least three contributions are made by Thiobacillus ferrooxidans. They are: (1) enzymatic...

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  • Biomining: How microbes help to mine copper BBC News

    Mar 21, 2012 ... At Chilean firm Biosigma, bacteria is used to extract copper from rocks, ... are full of microbes: Acidithiobacillus ferrooxidans and Thiobacillus...

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  • Bioleaching of different copper sulfides by Acidithiobacillus ...

    Bioleaching experiments show that the copper extraction of the five different ... sulfide copper and porphyry chalcopyrite) by Acidithiobacillus ferrooxidans (At.f...

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  • Copper Recovery from Chalcopyrite Concentrate by an Indigenous ...

    oxidizing bacterium, Acidithiobacillus ferrooxidans has been isolated from a ... results indicate that the efficiency of copper extraction is dependent on all of the...

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  • Percolation Leaching of a Chalcopyrite Bearing Ore at ... CDC stacks

    Copper extraction after inoculation of ore with thermophilic bacteria. Effect of .... bacteria (Thiobacillus thiooxidans) con ... perature when T. ferrooxidans or other.

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  • Bacterial leaching of ores and other materials Spaceship Earth

    The principal bacterium in ore leaching is Thiobacillus ferrooxidans, which is ... and about 5% of the world copper production is obtained by bacterial leaching.

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  • Bioleaching - Wikipedia

    Bioleaching is the extraction of metals from their ores through the use of living organisms. ... bacteria, including Acidithiobacillus ferrooxidans (formerly known as Thiobacillus ferrooxidans) and Acidithiobacillus .... which is why the dominant copper-producing technology remains flotation, followed by smelting and refining.

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  • Characteristics and adaptability of iron- and sulfur-oxidizing ...

    An example of the first type of process is the conversion of insoluble copper present in .... temperatures of 7580°C are required for copper extraction to take place at an ... These are the iron- and sulfur-oxidizing Acidithiobacillus ferrooxidans...

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  • Copper resistance mechanisms of bacteria and Archaea used in ...

    Jul 11, 2010 ... Industrial biomining processes to extract copper, gold and other metals ... such as the acidophilic Acidithiobacillus ferrooxidans (Bacteria), and...

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  • Bacterial consortium for copper extraction from sulphide ore ...

    Oct 30, 2013 ... The major native bacterial species involved in the bioleaching of sulphide ore (Acidithiobacillus ferrooxidans, Acidithiobacillus thiooxidans,...

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  • Thiobacillus ferrooxidans - Missouri S&T

    Thiobacillus ferrooxidans is a gram negative, obligately autotrophic and ... Metals recovered through this bioleaching process include copper, uranium and gold.

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  • Interaction of chalcopyrite and sphalerite with pyrite during leaching ...

    Thiobacillus ferrooxidans increased the leaching rates of Cu from chalcopyrite (from 1.6 to 11.1%), of Zn from sphalerite (from 1.6 to 36%), and of Fe from pyrite...

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  • Thiobacillus leaches out Gold in our lab from sulphides - YouTube

    May 30, 2011 ... Thiobacillus thioxidans bacteria that mobilizes sulfur and zinc important bacteria for plant growth - Duration: 5:12. Earth Man Living Soil 331...

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  • Chemolithotrophic Bacteria in Copper Ores Leached at High Sulfuric ...

    examined, including those of Thiobacillus ferrooxidans. The bacteria with this ... copper extraction and ferric iron generation, measured in the efffuent from the...

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  • Biomining of copper using Halophilic Thiobacillus ferroxidans.N-9

    temperature,78% of copper can be extracted from 40 g/L of Chalcopyrite ... Key words: Biomining, Halophilic, Thiobacillus thiooxidans N-9, Chalcopyrite, copper.

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  • Transcriptional and Functional Studies of Acidithiobacillus ...

    The acidophilic Acidithiobacillus ferrooxidans can resist exceptionally high copper ... the resistance nodulation cell division family involved in the extraction of Cu from ... The putative A. ferrooxidans Cu resistance determinants were found to be...

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