Mineral Materials Research Department

MINERAL MATERIALS RESEARCH DEPARTMENT

Functions: Conduct basic research, technology development, and applied research in the fields of mining, mineral processing, and other related areas.

Tasks:

• Conduct scientific research, technology development, and application of research results within the defined functions, including:
  • Research and development of mineral processing technologies and environmental protection;
  • Design, manufacture, installation, and supply of complete machinery and equipment for mineral processing technology lines, as well as related technical and scientific services in mineral utilization and environmental protection;
  • Inspection, testing, and evaluation of technological lines in the mining industry, scientific and technological projects, and machinery/equipment in the field of mineral processing;
  • Provide consultancy, peer review, and social assessment of strategies, master plans, projects, and research topics related to mineral processing and mineral resources;
  • Participate in training programs at college and university levels in Mineral Processing and other related disciplines in mineral resource development;
  • Engage in domestic and international cooperation under agreements signed by the Institute;
  • Manage human resources, assets, and materials in accordance with State and Institute regulations;
  • Perform other tasks assigned by the Director of the Institute.

Main Research Directions:

• Research and develop rational mineral processing technologies at laboratory, pilot, and industrial scales for various minerals, including non-metallic ores, non-ferrous metals, precious and rare metals. Participate in process adjustment and pilot testing of mineral processing plants;
• Conduct basic studies in areas serving mineral processing technology, including flotation reagents, design and development of mineral processing equipment, waste treatment, automation, and providing technical supervision and guidance for production at mineral processing plants;
• Provide consultancy in design, cost estimation for projects, technologies, and facilities; appraisal, verification, and supervision of design; supervision of equipment installation; technological sampling supervision; training and technology transfer; plant commissioning; as well as supervision and evaluation of technological lines and mineral processing plants.

Contact Information of the Head of Department:

Head of Department: MSc. Ho Ngoc Hung

• Academic title, full name: MSc. Hồ Ngọc Hùng
• Office address: Room 303, Building B2, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi
• Mobile phone: +84 917 116 659
• Email: hunghn@ims.(*) - Note: Replace (*) = vast.ac.vn

LIST OF ALL MEMBERS OF THE DEPARTMENT

MAIN ACHIEVEMENTS

1. Research on new flotation reagents applied to feldspar flotationThe research results showed that by using new flotation reagents, the obtained feldspar concentrate contained ∑ Na₂O + K₂O > 13%, meeting the requirements for raw materials in ceramic glaze production according to the Vietnamese Standard TCVN 6598:2000. The products can also be used in other industries such as abrasive powder, electrodes, etc. In addition, valuable by-products such as mica and quartz concentrates were recovered: quartz can be used as a construction material, while mica can be used in welding rod and paint production.

Key advantages of the technological scheme and research results include:

• Reduction of one mica cleaning stage.
• Application of new selective flotation reagents (Flotigam EDA, Flotinor FS2, Flotigam 4343). After mica flotation, the machine discharge can be directly floated without the washing stage for reagent removal, thus overcoming the drawbacks of the current washing process.

2. Research, renovation, and upgrading of the Lao Cai graphite processing lineFrom raw ore containing 12–14% Carbon (C), after improvements and the addition of some processing stages to the old plant’s line, graphite concentrate with 94–96% C was obtained. The renovation and upgrading of the processing line improved the quality of graphite concentrate to the maximum level, minimized resource and environmental waste, and enhanced the plant’s economic efficiency.

3. Research on technology for producing useful materials from fly ash and slag of Vinh Tan Thermal Power Plant – Binh Thuan

• Cleaned coal product after processing: C = 62.46%, calorific value Q = 5444 kcal/kg.
• Fly ash product: ∑ Al₂O₃ + SiO₂ + Fe₂O₃ > 80%. Fly ash meets the requirements for use as raw material in geopolymer concrete and road base layers.
• Cleaned coal can be used as fuel; processed slag can be used as an additive in cement and aggregate brick production.

4. Research on selective flotation technology for sericite ore in Son LaFrom raw ore containing SiO₂ 72.6%; Al₂O₃ 16.42%; K₂O 3.84%; Na₂O 1.52%, the flotation process produced concentrate with:

• Al₂O₃: 31.56% (recovery 74.34%)
• SiO₂: 50.14%
• K₂O: 7.65% (recovery 77.06%)
• Total (K₂O + Na₂O): 9.74%
• Fe₂O₃: 0.97%

The quality of the obtained concentrate makes it suitable as raw material for the paper, paint, and coating industries.

SELECTED PUBLICATIONS

[1] H. N. Hung, D. V. Dong, M. H. Duong, “Research on processing technology of fly ash and slag from Vinh Tan Thermal Power Plant, Binh Thuan,” Mining Science and Technology Journal, no. 6, pp. 1–3, 2017.

[2] N. T. Q. Lien, H. N. Hung, N. T. M. Giang, “Research on selective flotation technology for sericite ore in Son La,” Mining Science and Technology Journal, no. 6, pp. 25–27, 2017.

[3] N. T. M. Giang, M. H. Duong, “Research on bleaching technology of kaolin after processing in Ba Bo – Thanh Son – Phu Tho mine area,” Mining Science and Technology Journal, no. 2, 2019.

[4] H. N. Hung, D. V. Dong, “Research on selective flotation of illite ore in Son La,” Mining Science and Technology Journal, no. 4, 2019.

[5] H. N. Hung, D. V. Dong, M. H. Duong, “Research on material composition and processing technology orientation of sericite ore in Hang Chu, Son La,” Mining Science Journal, no. 2, pp. 32–34, 2020.

[6] H. N. Hung, D. V. Dong, M. H. Duong, “Study on beneficiation ability of sericite ore in Hang Chu Commune, Bac Yen District, Son La Province,” Mining Science Journal, no. 4, pp. 27–31, 2020.

[7] D. V. Dong, H. N. Hung, N. V. Trong, “Research on selective flotation of illite ore in Son La,” Proceedings of the 6th National Conference on Mineral Processing Science and Technology, 2023.

[8] N. T. Thuy, N. V. Trong, T. T. T. Thuy, “Research on processing technology to recover associated minerals from feldspar ore in Vinh Phuc,” Proceedings of the 6th National Conference on Mineral Processing Science and Technology, 2023.

[9] N. V. Trong, N. T. Thuy, T. T. T. Thuy, “Research results on beneficiation technology of antimony ore in Lang Son,” Proceedings of the 6th National Conference on Mineral Processing Science and Technology, 2023.

[10] V. M. Nguyen, T. T. Nguyen, H. M. Gioi, T. V. Phan, R. Siddique, “Optimizing aggregate grading and residual mortar coefficient in low-cement concrete by using crushed coal mine waste rock as base layers for low-traffic roads,” Construction and Building Materials, vol. 449, p. 138468, 2024.

MAIN EQUIPMENT