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Year 2022
 
Issue 6 [12 - 2022], Year XXXI

Technology to process Diatomite earth mineral of An Xuan mine, Tuy An district, Phu Yen province to become soil amendments

https://mij.hoimovietnam.vn/en/archives?article=22065

  • Affiliations:

    National Institute of Mining - Metallurgy Science and Technology

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  • Received: 22nd-Oct-2022
  • Revised: 10th-Nov-2022
  • Accepted: 10th-Dec-2022
  • Online: 31st-Dec-2022
Pages: 31 - 37
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Abstract:

Phu Yen diatomite is bio-origin sediment formed in fresh water areas due to the decomposition of diatomeae algae. Diatomeae algae absorb water-soluble silicic acid and convert it into opal form, amorphous SiO2 form. With special algae frame structure, Diatomite has great adsorption capacity, high porosity. Therefore, Diatomite has many applications in agriculture (soil amendments; …). The technology used to create soil amendments is the calcining method. The results accessible with the target are equivalent to the standards on soil amendments in the world: bulk density 0.52 g/cm3; density 2.26 g/cm3; porosity 76.99%; 115% saturated water absorption; Cation Exchange Capacity (CEC) 26.42 meq / 100g.

How to Cite
Tran, A.Ngoc, Tran, H.Thi and Dinh, D.Son 2022. Technology to process Diatomite earth mineral of An Xuan mine, Tuy An district, Phu Yen province to become soil amendments (in Vietnamese). Mining Industry Journal. XXXI, 6 (Dec, 2022), 31-37. .
References

1.Bộ Công Thương (2008), Quy hoạch phân vùng thăm dò, khai thác, chế biến và sử dụng nhóm khoáng chất công nghiệp (serpentin, barit, grafit, fluorit, bentonit, Diatomit và talc) đến năm 2015, có xét đến năm 2025.

2.Guilong Zhang, Dongqing Cai, Min Wang, Caili Zhang, Jing Zhang, Zhengyan Wu (2013), “Microstructural modification of Diatomit by acid treatment, high-speed shear, and ultrasound”, Microporous and Mesoporous Materials, 165, pp. 106–112.

3.Y. Jia, W. Han, G. Xiong, W. Wang (2007), “Diatomit as high performance and environmental friendly catalysts for phenol hydroxylation with H2O2”, Sci. Technol. Adv. Math, 8, pp 106-109.

4.Thomas D. Kelley and Thomas P. Dolley (2020), Diatomit Statistics.

5.www.cnDiatomit.com

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