Transformer oil vs. kerosene: Selective collectors for C-matter flotation from a double refractory gold ore

Lee, Sugyeong; Gibson, Charlotte E.; Borschneck, Andrew; Ghahreman, Ahmad

doi:10.1016/j.mineng.2022.107951

Cited by 2 publications

(3 citation statements)

References 28 publications

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“…The cluster itself has a collector property for gold, forming carbon-oil-gold aggregates, thereby increasing the probability of gold-adhering bubbles, as shown in Figure 24 [35,36]. At the same time, this carbon-oil agglomeration can also reduce the amount of xanthate and avoid the adsorption of xanthate by graphite or organic carbon, thus reducing the collection effect [22,37]. However, this carbon-oil-gold cluster can enter the gold mining product together, and another part of the carbon and arsenic in the raw ore enters the concentrate, combined with mineralogy analysis; this is because another part of carbon is embedded in the sulfide ore and arsenopyrite, as a gold carrier, is difficult to be effectively separated via ordinary grinding and flotation [31,38].…”

Section: Property Analysis Of Flotation Concentrate and Tailingsmentioning

confidence: 99%

“…The commonly used flotation agent is generally xanthate, but in actual production, xanthate also has the shortcomings of a high price and strong pollution. Moreover, the carbon in the gold ore has adsorbability to the collector [22]. Therefore, in order to reduce the amount of xanthate, in the flotation industry experiment, a more economical agent is often selected, and useful minerals are recovered collaboratively through a combination of drugs to achieve the purpose of reducing costs [23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, in order to reduce the amount of xanthate, in the flotation industry experiment, a more economical agent is often selected, and useful minerals are recovered collaboratively through a combination of drugs to achieve the purpose of reducing costs [23][24][25][26]. Kerosene has received a lot of attention in recent years as a common flotation collector and auxiliary collector, and some studies have shown that kerosene can have a synergistic effect with the sulfide ore collector to improve the recovery rate of gold [22,[27][28][29].…”

Section: Introductionmentioning

confidence: 99%

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Using Kerosene as an Auxiliary Collector to Recover Gold from Refractory Gold Ore Based on Mineralogical Characteristics

Sun,

Yu,

Jin

et al. 2023

Separations

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Carbon–arsenic-bearing gold ore is a typical complex refractory gold resource. Traditionally, xanthate was often used as a flotation agent to separate gold minerals. But, in this paper, in order to reduce the cost of the agent, kerosene was used as an auxiliary collector, and the gold grade and recovery rate were increased by about 10 g/t and 5.5%, respectively. Through process mineralogy studies of the raw ore, it was found that the ore has an Au grade of 5.68 g/t, most of which is surrounded by sulfide ore, accounting for 79.46%. The main minerals are pyrite, arsenopyrite, and quartz, etc. Their content, shape, particle size distribution, and occurrence state were obtained via microscopic observation and statistical analysis. According to the results of process mineralogy, various flotation conditions were tested, including grinding fineness, kerosene dosage, collector dosage, foaming agent dosage, and the slurry pH value. The optimal chemical system and the process flow of “two roughing, three cleaning and two scavenging” were finally determined, and the concentrate product with a gold grade of 42.83 g/t and recovery of 91.02% was obtained, which verified the feasibility of the kerosene-assisted xanthate flotation of refractory gold.

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Section: Property Analysis Of Flotation Concentrate and Tailingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Using Kerosene as an Auxiliary Collector to Recover Gold from Refractory Gold Ore Based on Mineralogical Characteristics

Sun,

Yu,

Jin

et al. 2023

Separations

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The Distribution Regularity and Flotation Study of Niobium-Bearing Minerals in Baiyun Obo

et al. 2023

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The characteristics of Baiyun Obo niobium-bearing minerals are complex physicochemical properties that make the beneficiation of niobium minerals extremely difficult. In this paper, X-ray diffraction, X-ray fluorescence and mineral liberation analyzer (MLA) systems were used to study the niobium occurrence state and distribution of niobium-bearing minerals in the samples from Baiyun Obo. The results show that the chemical and mineral compositions of the sample are complex, with a Nb2O5 grading of 0.24%. There are many kinds of niobium minerals, including ilmenorutile, nioboaeschynite-Nd, baotite, latrappite, euxenite-Y, fergusonite and columbite-Mn, and the highest mass fraction of 0.55% is achieved with Nb in nioboaeschynite-Nd, followed by the mass fraction of ilmenorutile (0.33%). All of the niobium-containing minerals demonstrate a low degree of dissociation. Flotation experiments explored the optimal flotation conditions for HOBA (1-hydroxyoctyl-1,1-bisphosphonic acid) as a flotation collector for Baiyun Obo niobium minerals, which is able to increase the grade of Nb2O5 in the concentrate to 1.31%. The optimal use conditions of the reagent are pH 3.5–4.5, and the amount of the collector is 1000 g/t. By further optimizing the beneficiation process and reagent system, ilmenorutile and nioboaeschynite-Nd were significantly enriched in the concentrate, which suggested that HOBA can efficiently increase the grade of Nb2O5 in the concentrate.

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Transformer oil vs. kerosene: Selective collectors for C-matter flotation from a double refractory gold ore

Cited by 2 publications

References 28 publications

Using Kerosene as an Auxiliary Collector to Recover Gold from Refractory Gold Ore Based on Mineralogical Characteristics

Using Kerosene as an Auxiliary Collector to Recover Gold from Refractory Gold Ore Based on Mineralogical Characteristics

The Distribution Regularity and Flotation Study of Niobium-Bearing Minerals in Baiyun Obo

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