Rebellious Gold Extraction from Gravity Concentrates and Placer Tailings by Chemical Reagents

Alekseev, V. S.; Banshchikova, T. S.

doi:10.1134/s1062739117042741

Cited by 4 publications

(4 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In Russia the most common agent used in flotation processing of gold-bearing raw material is butyl xanthate. There is a positive experience of re-flotation of the tailings containing noble metals in our country and abroad [3,[15][16][17][18].…”

Section: Resultsmentioning

confidence: 99%

Dressability of Old Gold-Bearing Tailings by Flotation

et al. 2018

View full text Add to dashboard Cite

The research results on floatability of old gold-bearing tailings are presented. The complex material composition and process features of processing waste are governed by difference in treatment of various ore types (sulfide, oxidized and mixed) at processing plant, as well as with supergene processes in the tailings pond. Feasibility of re-flotation of tailings is discussed. It is found that short-term mechanical activation of tailings in a mill with the subsequent flotation (at the adjusted reagent mode as against the current technology) results in gold recovery of 29.0 to 45.4% in flotation concentrate at the residue content of metal in rejects at the level of 0.2-0.3 g/t.

show abstract

Section: Resultsmentioning

confidence: 99%

Dressability of Old Gold-Bearing Tailings by Flotation

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Over the years, there have been rapid advancements in gold mining and extraction methods. New machines and methods [13][14][15][16] have been developed in our modern society to enable more precise excavation while minimizing environmental impact. Thus, this article will also thoroughly explore the extensive progression of devices throughout centuries, highlighting their notable advancements and drawing comparisons between them.…”

Section: The Historical Progression Of Alluvial Gold Mining and Processimentioning

confidence: 99%

“…A total of 60-70% of the 0.25 mm metal fraction is lost during the hydroelevation and dredging processes used to process waste sands, while gold particles smaller than 0.1 mm are actually entirely washed away into the tailings. The so-called "rebellious" gold [13], which consists of medium-sized gold particles with a high flattening factor and deformed surface, is entrained by water flow. A grade of ore-preparation wastes contains tens or even hundreds of grams of metal per ton, which supports this claim.…”

Section: The Gold Dredgesmentioning

confidence: 99%

Alluvial Gold Mining Technologies from Ancient Times to the Present

Mathioudakis,

Xiroudakis,

Petrakis

et al. 2023

Mining

View full text Add to dashboard Cite

This article provides a comprehensive and chronological account of the technological advancements in alluvial gold mining. Gold has been a highly prized commodity throughout history and has played a significant role in humanity’s economic and cultural progress. The primitive methods of extracting gold from riverbeds were carried out in Ancient Anatolia and Ancient Greece. The earliest references to the extraction of gold from riverbeds can be traced back to the Argonautic expedition and the myth of the “Golden Fleece”. In this myth, fine gold particles were believed to be trapped within the skin of the fleece, thus alluding to the early practices of gold recovery from rivers. Since then, gold extraction and processing technologies have evolved. During the Roman Empire period, Emperor Augustus made significant advancements in hydraulic gold mining. He developed the “ground sluicing” method, which used water to wash away the overlying soil and expose the bedrock where gold deposits were located. Subsequently, the revolutionary pumps described by Georgius Bauer (Agricola) gained significant popularity during the Renaissance. Additionally, Spanish colonialists in America enhanced their techniques by observing the efficient methods employed by the indigenous populations. Finally, the “gold rush” era was perhaps the most crucial period in alluvial gold mining and took place in the rivers of America during the 19th–20th centuries. Today, technologies have evolved significantly, and exploring the evolution of primitive methods to the present is considered essential.

show abstract

“…However, when gold is found in the dumps for a long time -dense films of iron, manganese hydroxide, copper sulphide, silver, sericite powders and clay particles appear on the surface of its particles, which significantly complicates separation of gold during the gravity enrichment. An effective way to remove such coatings from the surface of valuable minerals is to treat technogenic formations with a chemical agent based on a halogen-containing mixture [4]. Oxidized iron compounds, observed in the tailings as iron oxides, hydroxides, sulfates and carbonates were formed as a result of prolonged exposure of natural conditions [5].…”

Section: Introductionmentioning

confidence: 99%

Choice of Efficient Technology for Aged Enrichment Tailings Processing

Kozhonov

Maymanova

Kritskii

2019

MSF

View full text Add to dashboard Cite

The article is devoted to the development of an efficient technology for the processing of aged tailings of the «Solton-Sary» enrichment plant in Kyrgyzstan. Based on the detailed investigation of initial material, authors select most appropriate technology for processing of technogenic material, considering through gravity separation, flotation and hydrometallurgical methods of processing. The methods of sequential gravity separation/flotation scheme of enrichment and direct cyanidation of initial ore at different regimes are analyzed; advantages of aged tailings agitation leaching are established. Research, presented in the article, could be useful for enrichment plants, which are developing technologies of the waste products processing in order to increase the raw material base.

show abstract

Rebellious Gold Extraction from Gravity Concentrates and Placer Tailings by Chemical Reagents

Cited by 4 publications

References 1 publication

Dressability of Old Gold-Bearing Tailings by Flotation

Dressability of Old Gold-Bearing Tailings by Flotation

Alluvial Gold Mining Technologies from Ancient Times to the Present

Choice of Efficient Technology for Aged Enrichment Tailings Processing

Contact Info

Product

Resources

About