Contemporary Research and Developments in the Low-Toxic Chelating Reagents for the Extraction of Non-Ferrous and Noble Metals from Poor Polymetallic Ores and Processing Tailings

Matveeva, T. N.; Getman, V. V.; Gromova, N. K.; Karkeshkina, A. Yu.

doi:10.3390/su142316262

Cited by 4 publications

(2 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The use of a new reagent-a pyrazolone derivative-in combination with potassium butyl xanthate in the process of the flotation beneficiation of copper-zinc sulfide ores enables an increased recovery and content of copper and zinc in the concentrates of both copper and zinc flotations [13].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Novel Submicronic Solid Activators on Sphalerite Flotability

Turysbekov,

Tussupbayev,

Kenzhaliev

et al. 2024

Minerals

View full text Add to dashboard Cite

In this study, we examine the effect of novel submicronic activators made from copper minerals and copper-rich concentrate on sphalerite flotability. The copper minerals and copper concentrate are ground in a vibratory micromill and ultrasonically treated to obtain submicronic sphalerite activators. Histograms show that the concentration of copper particles in the activator after treatment is 92%–94%, with particle sizes of 105–115 nm. The results concerning monomineral flotation showed that sphalerite flotation is possible with the use of submicronic copper particles as an activator. At the same time, the consumption of mineral copper is much lower (by 10 times) than that of copper sulfate. The best results are achieved when submicronic particles of covellite and bornite (with a 60% concentration of particles 300–500 nm in size) were used. Sphalerite recovery amounted to 80%, which is higher than the recovery obtained with the use of copper sulfate by 2% but is 2% lower compared to the use of copper oxyhydroxide. The flotation effect of the submicronic activators on sphalerite was tested in laboratory conditions using polymetallic ore from one of Kazakhstan’s deposits. It is shown that the novel submicron activators based on bornite and copper concentrate exhibit much lower consumption rates and can replace the more expensive copper sulfate at the same Zn content (54.8%–54.9%), obtaining recovery rates of 95.69%–96.57%.

show abstract

Section: Introductionmentioning

confidence: 99%

The Effect of Novel Submicronic Solid Activators on Sphalerite Flotability

Turysbekov,

Tussupbayev,

Kenzhaliev

et al. 2024

Minerals

View full text Add to dashboard Cite

show abstract

“…Further laboratory and pilot tests showed that the best results were obtained by separate processing of slag and ore [13]. It has become possible to extract molybdenum from a collective concentrate obtained from ore and use slag flotation tailings containing 35-37% iron [10,12].…”

Section: Introductionmentioning

confidence: 99%

Processing of waste (tails) after flotation of copper production slag to obtain iron oxide pigment

Samadov,

Askarova,

Toshkodirova

et al. 2024

E3S Web of Conf.

View full text Add to dashboard Cite

At this work, the processing of waste after flotation of copper production slag to obtain iron oxide pigment is presented. Based on the results of the experiments, the influence of various factors and parameters on the processing of iron-containing waste (tailings) of the copper concentration plant-2 of the AMMC was studied; This approach is both uncomplicated and efficient for extracting Fe2O3, which is regarded as a primary ingredient in the manufacturing of iron pigment. It was found that when caustic soda is used for alkaline roasting, the iron oxides in the tailings react with nitrates and hydrates to form an insoluble solid phase. Additionally, it was discovered that firing temperatures above 350 °C result in the formation of a sodium aluminate compound. This compound and the iron compounds dissolve in solutions and negatively affect the quality of the resulting Fe2O3 pigment.

show abstract

Substantiation of New Reagent Compositions for the Effective Extraction of Rhenium in the Processing of Complex Molybdenum Ores

et al. 2023

View full text Add to dashboard Cite

Modern trends in technological improvement for producing high-quality rhenium-containing molybdenum concentrates are aimed at developing environmentally friendly solutions com-pared to traditional ones, involving a reduction in consumption or complete replacement of toxic substances and the use of plant reagents and microorganisms and make it possible to eliminate energy-intensive processes of steaming and roasting. It is known that up to 25%–30% of Mo, Cu and Re goes to rough flotation tailings and is lost in wastes. Those losses are a consequence of the ore composition variability, chalcopyrite–molybdenite ratio, an increase in the proportion between primary copper sulfide and finely disseminated molybdenite and the recovery of floating pyrite. High rates of valuable metal recovery into bulk concentrate can be achieved by using new compositions of flotation reagents that selectively change the hydrophobic properties of the target minerals. The application of new reagent compositions, including novel chemicals—dithiopyrylmethane (DTM), composite reagent (CR) and conventional butyl xanthate (ButX)—was theoretically and experimentally substantiated for the effective rhenium extraction in the processing of hard-to-beneficiate complex molybdenum ores. It is identified that DTM forms a complex DTM–Re compound and chemically adsorbed on rhenium-containing molybdenite providing an increase in Re recovery into the bulk Cu–Mo–Re concentrate by 17%, reducing by two times the loss of rhenium with flotation tailings, and the subsequent 97.6% Re extraction of the molybdenum concentrate by autoclave leaching.

show abstract

Contemporary Research and Developments in the Low-Toxic Chelating Reagents for the Extraction of Non-Ferrous and Noble Metals from Poor Polymetallic Ores and Processing Tailings

Cited by 4 publications

References 57 publications

The Effect of Novel Submicronic Solid Activators on Sphalerite Flotability

The Effect of Novel Submicronic Solid Activators on Sphalerite Flotability

Processing of waste (tails) after flotation of copper production slag to obtain iron oxide pigment

Substantiation of New Reagent Compositions for the Effective Extraction of Rhenium in the Processing of Complex Molybdenum Ores

Contact Info

Product

Resources

About