Experimental Study of Floatation on Non-Independent Copper Oxide Ore from Jilin Province in China

Through the processing of mineralogical study on a copper ore from Jilin province in China, it found that the copper exist mostly with the form of chalcopyrite, and others exist with the form of copper oxide minerals which with complex ingredient. The copper oxide minerals are due to the altered of the edge of chalcopyrite, and have not formed the independent copper oxide ore. It belongs to unconventional hard-to-beneficiate copper ore. Coarse grinding fineness and bulk floatation was used to recover the copper oxide ore and copper sulfide ore by using amino double phosphoric acid and butylamine dithiophosphate as the collector. This process was similar to the carrier flotation and achieved an effective processing of the copper oxide ore and obtained a high-grade copper concentrate assaying 15.8% with a high recovery of 82.4%.

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Recovery Copper from a Complex Copper Sulfide Ore of Yunnan by Using Flotation

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.737.839 ◽

2015 ◽

Vol 737 ◽

pp. 839-842

Author(s):

Yi Jie Wang ◽

Shu Ming Wen ◽

Dan Liu ◽

Chuan Fa Cui ◽

Bin Zhang

Keyword(s):

Copper Sulfide ◽

Sodium Sulfide ◽

Optimal Conditions ◽

Copper Ore ◽

Copper Concentrate ◽

Sulfide Ore ◽

Open Test ◽

Copper Sulfide Ore ◽

Complex Copper ◽

Large Deposits

Copper ore is the main mineral for the large deposits. Copper minerals are mostly consisting of chalcopyrite, secondly consisting of bornite, there are traces of processing copper blue and malachite, the mineral is disseminated by coarse granularity. This mineral is easy to processing. Production process was using by the process of grinding-flotation. After grinding fineness, lime dosage, sodium sulfide dosage, collector and frother dosage, were determined by the open test. Closed circuit experiment was conducted by those optimal conditions identified in the above test, the recovery of copper concentrate is 88.38% and the grade of copper concentrate is 14.37%.

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BIOLEACHING OF COPPER FROM CARAIBA MINE ORE (BRAZIL)

Latin American Applied Research - An international journal ◽

10.52292/j.laar.2019.281 ◽

2019 ◽

Vol 49 (1) ◽

pp. 25-29

Author(s):

L. A. BERNARDEZ ◽

L.R. P. DE ANDRADE LIMA ◽

L.E. L. DE OLIVEIRA

Keyword(s):

Low Temperature ◽

Mine Tailings ◽

Copper Sulfide ◽

Gold Mine ◽

Copper Ore ◽

Chemical Leaching ◽

Sulfide Ore ◽

Gold Mine Tailings ◽

Acid Mining Drainage ◽

Copper Sulfide Ore

The bioleaching of copper ore from the Caraiba Mine was assessed. A microorganism, Acidiothiobacillus ferrooxidans, was isolated from samples collected directly in acid mining drainage in a gold mine tailings pound and used in the bioleaching of the copper sulfide ore. This ore is composed mainly of 28% of oxidized species, 43% of secondary sulfides and 24% of primary sulfide. The shaking flasks experiments with the Caraiba ore showed copper chemical leaching of about 37% and copper bioleaching of about 60% within 60 days at low temperature and native microorganism.

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Characterization of microbial community in industrial bioleaching heap of copper sulfide ore at Monywa mine, Myanmar

Hydrometallurgy ◽

10.1016/j.hydromet.2016.07.007 ◽

2016 ◽

Vol 164 ◽

pp. 355-361 ◽

Cited By ~ 14

Author(s):

Yan Jia ◽

Heyun Sun ◽

Defang Chen ◽

Hongshan Gao ◽

Renman Ruan

Keyword(s):

Microbial Community ◽

Copper Sulfide ◽

Sulfide Ore ◽

Copper Sulfide Ore

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Investigation of Bioleaching of a Low Grade Nickel-Cobalt-Copper Sulfide Ore with High Magnesium as Olivine and Serpentine from Lao

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.825.396 ◽

2013 ◽

Vol 825 ◽

pp. 396-400 ◽

Cited By ~ 2

Author(s):

Bo Wei Chen ◽

Liu Lu Cai ◽

Biao Wu ◽

Xue Liu ◽

Jian Kang Wen

Keyword(s):

Copper Sulfide ◽

Nickel Sulfide ◽

Low Grade ◽

Nickel Cobalt ◽

Nickel Silicate ◽

Copper Leaching ◽

Sulfide Ore ◽

Initial Ph ◽

Copper Sulfide Ore ◽

Cobalt Copper

Shake flask bioleaching of a low-grade nickel-cobalt-copper sulfide ore from Lao was investigated to test the technical feasibility to recovery metals from this ore. The mineralogical results indicated that the valuable minerals were disseminated finely and the ore had a low content of sulfur and high content of iron and magnesium, which was very harmful for bioleaching. The effects of different parameters such as the amount of acid addition, inoculation volume, initial pH, temperature and leaching time on the bioleaching performance of the ore were evaluated after pre-leaching with dilute acid. The results showed that nickel, cobalt, copper leaching rates reached 81.61%, 80.75%, 70.97% at 33 °C and 83.40%, 82.13%, 70.34% at 45 °C. The mineralogical analysis of the leaching residues revealed that the leaching rate of nickel sulfide was more than 92% and the unleached nickel was mainly present as nickel silicate.

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Research on Flotation of Copper Sulfide Ore in Yunnan Province

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.522-524.1471 ◽

2014 ◽

Vol 522-524 ◽

pp. 1471-1475

Author(s):

Tie Min Zhang ◽

Jian Jun Fang ◽

Tai Guo Jiang ◽

Shan Wang ◽

Ying Bo Mao

Keyword(s):

Experimental Research ◽

Copper Sulfide ◽

Yunnan Province ◽

Separation Process ◽

Process Conditions ◽

Successful Recovery ◽

Sulfide Ore ◽

Test Requirements ◽

Copper Sulfide Ore

Floatation experimental research is carried out on a certain complicated ore containing mixed sulphides in Yannan province. For the characteristics of the mine and the scene of the test requirements, the use of mixed flotation-separation process has achieved a successful recovery of useful elements. Combination inhibitors can effectively achieve the separation of copper and sulfur .Under the proper process conditions ,the good technical indexes were obtained.

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Bio-Heap Leaching of Primary Copper Sulfide Ore by JOGMEC

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.262.99 ◽

2017 ◽

Vol 262 ◽

pp. 99-102

Author(s):

Tatsuya Shinkawa ◽

Tadashi Chida ◽

So Furukawa ◽

Taro Kamiya

Keyword(s):

Copper Sulfide ◽

Heap Leaching ◽

Sulfide Ores ◽

High Iron Content ◽

Iron Oxidizing Bacteria ◽

Acid Consumption ◽

Sulfide Ore ◽

Leaching Solution ◽

Sulfur Oxidizing ◽

Copper Sulfide Ore

JOGMEC has been carrying out the study on primary copper sulfide ores leaching for recovering copper economically and efficiently by heap leaching. In our study, we have been using the primary copper sulfide ore produced in an IOCG deposit. The ore is characterized by high iron content and high acid consumption in leaching. For the optimization of the leaching, the conditions such as ore size, agglomeration, pH and irrigation rate of leaching solution were examined with column leach tests. The best result was over 80 % extraction of copper in 150 days with leaching solution of 1 M sulfuric acid and temperature of 45 °C. In this experiment, the fines of the ore sample were removed before putting it into the column to keep the permeability of the ore bed. In these column leach tests, the Fe2+/total-Fe ratio of PLS decreased gradually by the activity of naturally grown iron-oxidizing bacteria. The bacteria in PLS, which have the ability of iron-oxidizing and sulfur-oxidizing, were identified by next-generation sequencing as Acidithiobacillus caldus and Sulfobacillus thermosulfidooxidans. We also carried out bench-scale tests with about 200 tons of the primary copper sulfide ores. Iron-oxidizing and sulfur-oxidizing bacteria were identified in the leaching solution as same with column leach tests. It is considered that the bacteria worked in the leaching solution and on the surface of the ores.

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