In the present work, the synthetic-contaminated soils were prepared for the study could be a sustainable approach for efficient bioremediation of copper, cobalt and nickel contaminants, respectively. Current tested methods are helpful in streamlining the natural compliance of fragile elements and its uptake into the microbial system under in ...

The growth and magnetic properties of films of fcc cobalt on Cu(100) substrates has been characterized by a multitechnique approach. The films are ferromagnetically ordered in-plane at ...

Combes formed a copper-Schiff base complex by reacting ethylenediamine with two equivalents of acetylacetone. The use of a Schiff base as a ligand in a coordination complex was the first [5] . Since then, a variety of applications for Schiff base metal complexes have been discovered, Schiff base Coordination or metal complexes (MCs) …

This decreased activity of the reduced cobalt and promoted reduction of cobalt oxide. As a result, the cobalt yield had a significant increase from 66.2% to 90.1% by adding 2% pig iron. Similarly, the copper also accelerated tin recovery through the formation of a copper-tin alloy. The copper and tin yields reached 94.4% and 95.0%, respectively.

Hence, the suggested combined approach could be a viable alternative to aforementioned CPS stage in Cu-Co oxide-sulphide mixed ores flotation plants, especially in operations where the mixed ore contains significant proportions of carbonate gangue minerals. ... The floatability of oxide copper-cobalt minerals is affected more by the …

Abstract. Cu-Co alloy is an intermediate product from the pyrometallurgical processing of cobalt oxide ores, which mainly contains metallic components of Cu, Co, Fe and Si. This research involves ...

The morphology and chemical composition of cobalt ferrite and copper-substituted cobalt ferrite nanoparticles (Cu x Co 1−x Fe 2 O 3, with x = 0.0, 0.3, 0.5, 0.7, and 1.0) were examined via FESEM coupled with EDX, and the results are presented in Fig. 1.Samples with x = 0.0 and 0.3 exhibited irregular particles, where the agglomeration …

Copper and cobalt mine in the DRC. CMOC is the second largest cobalt producer and a leading copper producer in the world. Covering an area of over 1,500 square kilometers, our Tenke Fungurume Mine (TFM) in the DRC specializes in exploration, mining, extraction, processing, and sales of copper and cobalt, boasting a complete set of techniques and …

The developed copper‐cobalt co‐catalyzed system provides a promising approach to selectively prepare high‐value benzoquinone compounds under mild reaction conditions. Discover the world's ...

Copper-cobalt deposits in the Central African Copperbelt belong to the Sediment-Hosted Stratiform Copper (SHSC) type and are situated in the Neoproterozoic Katanga Supergroup. ... The PCA approach ...

Novel approach for processing complex carbonate-rich copper-cobalt mixed ores via reverse flotation. Dehaine, Quentin. ; Filippov, Lev O. ; Filippova, Inna V. ; Tijsseling, …

The most recent nonlinear approach and variance decomposition and impulse response have been employed. We focused on the top-one country in cobalt production and the highest copper reserves on the globe for the period 1990 to 2016. ... Secondly, though, the cobalt-copper production effect degree is weaker related to other …

Recovery efficiencies could be attained as follows: for copper; 99.2% for manganese, 97.8% for cobalt, 99.1% for nickel and 95.8% for lithium under their optimized exptl. conditions. McCabe-Thiele …

In this regard, a global proteomic approach has revealed that the chaperones, HspA and GroES, are specifically upregulated in the presence of high concentrations of nickel and cobalt, respectively . These data suggest that these chaperones may be directly involved in the tolerance for these metals. ... copper, cobalt …

Abstract In this study, we propose a novel temperature-programmed ammonium chloride (NH4Cl) roasting–water-leaching process to extract nickel (Ni), cobalt (Co), and copper (Cu) from polymetallic sulfide minerals in a synchronous, efficient, and environment-friendly manner. During the roasting process, several vital parameters were …

Abstract. Large amounts of solid wastes are produced in copper and aluminum smelting processes, which not only cause losses of valuable resources but …

Scenario analysis was conducted to estimate the potential of urban cobalt mines in China in 2007–2016, considering the final cobalt-bearing product lifespan distributions; the recycling rate of ...

Cobalt (III) is present in most of the minerals in the Congolese Copperbelt deposits. Its hydrometallurgical treatment requires to be reduced to Co2+, using a …

Integrating different components into a heterostructure is a novel approach that increases the number of active centers to enhance the catalytic activities of a catalyst. This study uses an efficient, facile hydrothermal strategy to synthesize a unique heterostructure of copper cobalt sulfide and tu …

The copper and cobalt deposits in the Congo (DRC) section contain 58 million tons of copper and 4.6 million tons of cobalt. Geochemical studies show that the cobalt-copper ratio of cobalt-rich deposits in the DRC has a cobalt-copper ratio of 3:1, with an average of 1:13 . Therefore, copper-cobalt resources in the DRC are …

Optimal band gap structure, high light absorbance, and low thermal emittance offer a wide range of potential uses because of the distinctive electrical and optical characteristics of copper oxide. Doping with transition metals such as cobalt could affect and enhance those characteristics. In this work, undoped copper oxide (CuO) and …

Large amounts of solid wastes are produced in copper and aluminum smelting processes, which not only cause losses of valuable resources but also threaten the ecology and environment. In this study, a reduction–sulfurization smelting method was used for recovering Cu and Co from converter slags by using spent pot lining (SPL) as the …

Clean processing of copper converter slag to reclaim cobalt and copper could be a challenge. An innovative and environmentally sound approach for recovering valuable metals from such a slag has been developed in the present study. Curing the slag with strong sulphuric acid, without re-smelting or ro …

Novel approach for processing complex carbonate-rich copper-cobalt mixed ores via reverse flotation - ScienceDirect. Abstract. Introduction. References (46) …

Herein, we describe a novel approach for the synthesis of conducting electrocatalysts derived from copper/cobalt-containing polypyrrole (PPy) hydrogel. This strategy relies on a pervasive supramolecular way toward controlled in situ synthesis of one-dimensional nanostructured conductive hydrogels using a reasonable dopant …

Novel approach for processing complex carbonate-rich copper-cobalt mixed ores via reverse flotation. January 2021. Minerals Engineering. DOI: …

Abstract. A full cobalt-copper material library was successfully prepared from a single experiment by galvanostatic electrodeposition using a modified Hull cell. …

Africa's Copper Belt is a mining region located between Democratic Republic of Congo (DRC) and Zambia, and it's the world's largest cobalt producer, which holds almost half of the world reserves.

Cobalt (III) is present in most of the minerals in the Congolese Copperbelt deposits. Its hydrometallurgical treatment requires to be reduced to Co2+, using a reducing agent. Using the Principal Component Analysis (PCA) approach, a 16 × 7 matrix was built to identify groups of ores/reducers with similar metallurgical performance. The study was …

In this study, we propose a novel temperature-programmed ammonium chloride (NH4Cl) roasting–water-leaching process to extract nickel (Ni), cobalt (Co), and copper (Cu) from polymetallic sulfide minerals in a synchronous, efficient, and environment-friendly manner. During the roasting process, several vital parameters were investigated …