Mineralogical study and enhanced gravity separation of gold-bearing mineral, South Eastern Desert, Egypt

• Autorzy: El-Sayed Samah , Abdel-Khalek N. A. , El-Shatoury E. H. , Abdel-Motelib A. , Hassan M. S. , Abdel-Khalek M.A.

Identyfikatory

DOI

10.37190/ppmp/125977

• Języki publikacji: EN

Abstrakty

EN

El-Hudi gold deposit, located in the South Eastern Desert of Egypt, represent large vein- type gold occurrence. The representative sample revealed the abundance of quartz as main constituent with minor amounts of mineral impurities. Gold was detectable (12 g/t) as determined using atomic absorption. The petrographic study revealed that the gold grains ranged from 10-40 μm. The grain boundaries of quartz are highly stained with iron minerals as hematite and limonite. Sericite mineral is common in discrete gold-bearing veins. Eroded pyrite was detected with high alteration leaving only cubic-shaped cavities behind. Different techniques for gravity separation were used to separate gold from the quartz mineral. After crushing and grinding of the sample, shaking table was used to upgrade the coarser fractions while Falcon concentrator was employed to upgrade the fine fraction. The best concentrate was obtained through grinding the whole sample to less than 0.2 mm, followed by cleaning steps. The gold content is increased from 12 to 145 g/t with total recovery of 78%.

Słowa kluczowe

EN

gold; mineralogy; petrography; gravity separation; Falcon concentrator

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2020
• Tom: Vol. 56, iss. 5
• Strony: 839--848
• Opis fizyczny: Bibliogr. 27 poz., rys., tab.

Twórcy

autor

El-Sayed Samah

• Central Metallurgical Research and Development Institute (CMRDI), P.O. Box 87 Helwan 11421, Cairo, Egypt

autor

Abdel-Khalek N. A.

• Central Metallurgical Research and Development Institute (CMRDI), P.O. Box 87 Helwan 11421, Cairo, Egypt

autor

El-Shatoury E. H.

• Microbiology Department, Faculty of Science, Ain Shams University, Egypt

autor

Abdel-Motelib A.

• Geology Department, Faculty of Science, Cairo University

autor

Hassan M. S.

• Central Metallurgical Research and Development Institute (CMRDI), P.O. Box 87 Helwan 11421, Cairo, Egypt

autor

Abdel-Khalek M.A.

• Central Metallurgical Research and Development Institute (CMRDI), P.O. Box 87 Helwan 11421, Cairo, Egypt

Bibliografia

• ABDEEN, M.M., ABDEL-GHAFFAR, A.A., 2011. Syn- and post-accretionary structures in the Neoproterozoic central Allaqi-Heiani suture zone, southeastern Egypt. Precambrian Research 185, 95-108.
• ABDEL-RAHIM, S.H., EL-NASHAR, E.R., OSMAN, A.F., ABDEL-GHAFFAR, N.I., 2013. Gold-Bearing sulfides associated with granitic wall-rock alterations at Fawakhir Area, Central Eastern Desert, Egypt, Journal of Applied Sciences Research, 9(11): 5878-5903.
• ABDEL-SALAM, M.G., ABDEEN, M.M., DOWIDAR, H.M., STERN, R.J., ABDEL-GHAFFAR, A.A., 2003. Structural evolution of Neoproterozoic Western Allaqie Heiani suture, South Eastern Egypt. Precambrian Research 124, 87-104.
• ADAMS, M., 2016. Gold Ore Processing: Project Development and Operations (2nd ed). Fugue Pet Ltd, Singapore.
• AL-HWAITI, M., ZOHEIR, B., LEHMANN, B., RABB, I., 2010. Epithermal gold mineralization at Wadi Abu Khushayba, southwestern Jordan. Ore Geology Reviews, 38, 1–2, 101-112.
• ANDERSON, R.S., ANDERSON, S.P., 2010. Geomorphology: The Mechanics and Chemistry of Landscapes, Cambridge University Press., 187.
• DUCKENFIEL, M., 2016. Monetary History of Gold: A Documentary History, 1660-1999 1st ed. Kindle Edition, ISBN-13: 978-1851967858, Amazon Digital Services LLC.
• EL-SHAMI, A.M., 2005. Structural control of the gold bearing quartz veins, Sci. Bull., Minia Univ., 16(2): 45-62.
• ERNAWATI, R., IDRUS, A., PETRUS, H.T.B.M., 2019. Study of the optimization of gold ore concentration using gravity separator (shaking table): case study for LS epithermal gold deposit in Artisanal Small scale Gold Mining (ASGM) Paningkaban, Banyumas, Central Java IOP Conf. Ser.: Earth Environ. Sci. 212 012019
• GUARINO, V., FEDEL, L., FRANCIOSI, L., LONIS, R., LUSTRINO, M, MARRAZZO, M., MELLUSO, L., MORRA, V., ROCCO, I., RONGA, F., 2011. Mineral compositions and magmatic evolution of the calcalkaline rocks of northwestern Sardinia, Italy. Periodico di Mineralogia, 80, 3 (Spec. Issue), 517-545.
• GUL, A., KANGAL, O., SIRKECI, A.A., ONAL, G., 2012. Beneficiation of the gold bearing ore by gravity and flotation. International Journal of Minerals, Metallurgy and Materials, 19, 2, 106.
• HARRAZ, H.Z., 2000. A genetic model for a mesothermal Au deposit: evidence from fluid inclusions and stable isotopic studies at El Sid Gold Mine, Eastern Desert, Egypt. J. African Earth Sci., 30(2): 267-282.
• HELMY, H.M., KAINDL, R., FRITZ, H., LOIZENBAUER, J., 2004. The Sukari gold mine, Eastern Desert-Egypt: Structural setting, mineralogy and fluid inclusion study. Mineralium Deposita 39, 495-511.
• JENA, M.S., MOHANY, J.K., SAHU, P., VENUGOPAL, R., MANDRE, N.R., 2017. Characterization and Preconcentration of Low Grade PGE Ores of Boula Area, Odisha using Gravity Concentration Methods. Trans. Indian Inst. Met., 70, 287–302.
• MC-GRATH, T.D.H., CONNOR, L.O., EKSTEEN, J.J., 2015. A comparison of 2D and 3D shape characterization of free gold particles in gravity and flash flotation concentrates. Miner. Eng., 82, 45–53.
• MEUNIER, A., VELDE, B., 2013. Illite: Origins, Evolution and Metamorphism, Springer, ISBN 978-3-662-07850-1.
• NESSE, W.D., 2012. Introduction to mineralogy (2nd ed.) New York: Oxford University Press. ISBN:978-0199827381.
• ONEL, O., TANRIVERDI, M., 2016. Use of Falcon Concentrator to Determine the Gravity Recoverable Gold (GRG) Content in Gold Ores. Journal of the Polish Mineral Engineering Society, 17(1): 189-194.
• RAMESH, S.L., SUNDER, RAJU, P.V., ANJAIAH, RAMAVATHI MATHUR K.V., GNANESWARA, RAO T.,
• DASARAM, B., NIRMAL, CHARAN S., SUBBA, RAO D.V., SARMA, D.S., RAM, MOHAN M., BALARAM, V., 2001. Determination of Gold by Atomic Absorption Techniques. PerkinElmer Instruments LLC, 22(1).
• RASLAN, M.F., ALI, M.A., 2010. Mineral chemistry of polymetallic mineralization associated with altered granite, Hangaliya area, South Eastern Desert, Egypt. GEOLOGIJA 53/2, 129-138, Ljubljana.
• RHODES, M., PENNA, F., 2009. Flowsheet development for the Sukari gold project in Egypt, World Gold Conference 2009, The Southern African Institute of Mining and Metallurgy. U.S. Geological Survey, Mineral Commodity Summaries, 2019. https:prd-wret.s3-us-west-2. Amazonaws.com/assets/palladium/production/atoms/files/mcs2019-all.pdf.
• WANG, X., QIN, W., JIAO, F., YANG, CUI, Y., LI, W., ZHANG, Z., SONG, H., 2019. Mineralogy & Pretreatment of a Refractory Gold Deposit in Zambia, Minerals, 9, 406.
• WILLS, B.A., FINCH, J.A., 2016. FRSC, FCIM, P. Eng., in Wills' Mineral Processing Technology (18th ed).
• ZOHEIR, B.A., 2008. Characteristics and genesis of shear zone-related gold mineralization in Egypt: a case study from the Um El Tuyor mine, South Eastern Desert. Ore Geology Reviews 34, 445-470.
• ZOHEIR, B.A., 2011. Transpressional zones in ophiolitic mélange terranes: potential exploration targets for gold in the South Eastern Desert, Egypt. Journal of Geochemical Exploration 111, 23-38.
• ZOHEIR, B.A., 2012. Controls on lode gold mineralization, Romite deposit, South Eastern Desert, Egypt. Geoscience Frontiers 3(5) 571-585.