Diagnosis and Optimization of Gold Ore Flotation Circuit via Linear Circuit Analysis and Mass Balance Simulation

Han, Seongsoo; Jung, Minuk; Lee, Won–Jae; Kim, Seong–Min; Lee, Kyoungmun; Lim, Geun-tae; Jeon, Ho-Seok; Choi, Siyoung Q.; Han, Yosep

doi:10.3390/min11101065

Cited by 5 publications

(5 citation statements)

References 37 publications

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“…휘수연석에 소수화 강화를 위해 비이온성 포수제인 등 유를 포수제로 활용하였다 4,6,14) . 광액의 분산성 향상 및 맥 석인 규산염광물의 부유 억제를 위해 규산나트륨을 억제 제로 선택하였다 15) .…”

Section: Sem-edsunclassified

“…광액의 분산성 향상 및 맥 석인 규산염광물의 부유 억제를 위해 규산나트륨을 억제 제로 선택하였다 15) . 기포제는 폴리프로필렌 계통의 AF65 를 사용하였다 6) . 부유선별 실험 조건은 선행연구를 참고 하여, 등유 150 g/t, AF65 75 g/t, 규산나트륨 1000 g/t로 설정하였으며, 몰리브덴 원광 500g, 광액농도 30 v/v%로 수행하였다 4,6,14,16) .…”

Section: Sem-edsunclassified

“…기포제는 폴리프로필렌 계통의 AF65 를 사용하였다 6) . 부유선별 실험 조건은 선행연구를 참고 하여, 등유 150 g/t, AF65 75 g/t, 규산나트륨 1000 g/t로 설정하였으며, 몰리브덴 원광 500g, 광액농도 30 v/v%로 수행하였다 4,6,14,16) . 속도상수 산출을 위해 부유선별 정광 은 0.…”

Section: Sem-edsunclassified

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Evaluation of Basic Beneficiation Characteristics for Optimizing Molybdenum Ore Flotation Process

Han,

Seo

2024

Resour. Recycl.

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Molybdenum is used in various industries because of its high heat and corrosion resistance. It was selected as a critical mineral in Korea. However, there have been recent challenges in production because of the increased depth and decreased grade of molybdenum veins. Consequently, it is necessary to enhance the effectiveness of the molybdenum beneficiation process. In this study, a basic evaluation of beneficiation characteristics was conducted to enhance the effectiveness of the domestic molybdenum ore beneficiation process. The properties of the beneficiation process were assessed using mineralogical analysis, work index, and flotation kinetics. The results revealed that the allowable particle size of the molybdenum ore for liberation was ~100 μm. In addition, the work index was calculated to be 14.57 kWh/t. The operating conditions in the flotation units were achieved by determining the optimal flotation time for each process based on flotation kinetics. Finally, the characteristics of molybdenum ore beneficiation provided in this study can be utilized to diagnose the grinding and flotation processes of large-scale molybdenum beneficiation plants.

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Section: Sem-edsunclassified

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Evaluation of Basic Beneficiation Characteristics for Optimizing Molybdenum Ore Flotation Process

Han,

Seo

2024

Resour. Recycl.

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“…Existing flotation plants need simple but effective tools for diagnosis and optimization as the mined sulphide ore becomes more complex and lean of valuable minerals. In this Special Issue, a study by Han et al [11] showed that linear circuit analysis (LCA) and mass balance (MB) simulation are simple yet powerful tools that can be used to diagnose and optimize the gold ore flotation circuit. From their simulation results, they showed that the current process flotation circuit can be changed to an alternative circuit to obtain the current recovery while improving the gold grade of the concentrate by 128%.…”

Section: Flotationmentioning

confidence: 99%

Editorial for Special Issue “Sustainable Production of Metals for Low-Carbon Technologies”

Park

Silwamba

2023

Minerals

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“…Obviously, for the ore of the technological sample of the deposit, a combined enrichment scheme, including gravity processes for capturing free gold, will be more promising, and flotation to recover fine free gold and gold associated with sulfide minerals. In relation to the above problems, it was decided to stop prospecting experiments on the original ore and continue research on flotation on gravity tailings [31].…”

Section: Investigation Of the Deposit Ore Dressability By Flotation M...mentioning

confidence: 99%

Technology for Processing Low-Sulfide Gold-Quartz Ore

et al. 2022

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Link for citation: Fedotov P.K., Senchenko A.E., Fedotov K.V., Burdonov A.E., Vlasova V.V. Technology for processing low-sulfide gold-quartz ore. Bulletin of the Tomsk Polytechnic University. Geo Аssets Engineering, 2022, vol. 333, no. 6, рр.178-189. In Rus. The relevance of the research is caused by the necessity to acquire new knowledge about the enrichment of gold-bearing ores and the need to develop the resource base of the Russian Federation, namely involve subsoil use objects in economic circulation. The purpose of the study is to study the processing of low-sulfide gold-quartz ore using an integrated technology for the enrichment of mineral raw materials. Object: gold ore raw materials with an average gold grade of 11,88 g/t. The silver content is negligible – 2,43 g/t. The main ore minerals in the sample are pyrite and pyrrhotite. The average content of these minerals in the ore, according to mineralogical and X-ray diffraction analysis, was about 6 % (in total). The main rock-forming minerals of the original ore are: quartz – 60,1 %; quartz-chlorite-mica aggregates – 3,8 %; carbonates – 7,1 %. Methods. The research methodology was based on the theoretical foundations of mineral processing. The study of the material composition of the ore, and enrichment products, was carried out using chemical, assay, thermal, spectrometric methods, as well as atomic emission spectrometry and other methods. The study of washability was carried out by the methods of gravity and flotation enrichment, namely: GRG test, stage test of the Institute TOMS (Russia) (determination of the optimal size of ore grinding and the number of enrichment stages), modeling of gold extraction in the grinding cycle, determination of the optimal degree of grinding, study of the choice of flotation reagents, study of the kinetics of the process and the implementation of a complex of technological studies. Results. It was found that the gold recovery when performing the GRG test was 72,75 % with a total concentrate yield of 1,34 % and a content of Au 664,78 g/t. At the same time, the gold content in the tailings was 3,29 g/t. A stage test showed that for ore processing only by gravity technology, it is advisable to use a two-stage scheme. The first stage is in the grinding cycle with the ore size of 60–70 % and the second stage – with the final size of the discharge of the classification 90 % size of –0,071 mm. Centrifugal separation, as a free gold recovery operation in a grinding cycle, works efficiently. A concentrate with a gold content of 2426 g/t was obtained with an output of 0,31 % and an extraction of 63,74 %. The enrichment of the first stage tailings crushed to 90 % size of –0,071 mm at the KC-CVD concentrator (modeling) made it possible to extract gold into a total gravity concentrate (KC-MD+KC-CVD) of 87,25 % with a concentrate yield of 22,63 %. The gold content in the tailings was 1,97 g/t. The results of gravity and flotation concentration of the original ore indicate the feasibility of using a combined gravity-flotation technological scheme. In a closed experiment of the initial ore beneficiation according to the gravity-flotation scheme at a natural pH of the pulp (without adding acid), the following products were obtained: gravity concentrate with a gold content of 2426 g/t at a yield of 0,31 % and an extraction of 64,06 %; flotation concentrate (after the II cleaning) with a gold content of 122 g/t with a yield of 2,90 % and recovery of 33,01 %; the total gold recovery in the gravity-flotation concentrate was 94,07 % with a yield of 3,21 % and Au content of 345,87 g/t, the gold content in the flotation tailings was 0,72 g/t.

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Diagnosis and Optimization of Gold Ore Flotation Circuit via Linear Circuit Analysis and Mass Balance Simulation

Cited by 5 publications

References 37 publications

Evaluation of Basic Beneficiation Characteristics for Optimizing Molybdenum Ore Flotation Process

Evaluation of Basic Beneficiation Characteristics for Optimizing Molybdenum Ore Flotation Process

Editorial for Special Issue “Sustainable Production of Metals for Low-Carbon Technologies”

Technology for Processing Low-Sulfide Gold-Quartz Ore

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