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Selection of an appropriate leaching method for light REEs from Esfordi flotation concentrate based on mineral characterization
of 17 chemical elements in the periodic table, specifically the 15 lanthanides plus scandium and yttrium. REEs and alloys that contain them are used in devices such as computer memory, rechargeableExpand
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A successful operational initiative in copper oxide flotation: Sequential sulphidisation-flotation technique
One of the main challenges in the copper oxide processing industry is implementation of flotation method to reduce operating costs. Sulphidising flotation is the most common used technique in which aExpand
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Regeneration of Sn-Pb solder from waste printed circuit boards: A hydrometallurgical approach to treating waste with waste.
A green approach was introduced to regenerate Sn-Pb solder from waste printed circuit boards (PCBs). For this purpose, waste Al-based heat sinks were used as cementing agent to precipitate Sn and PbExpand
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Leaching and recovery of phosphate and rare earth elements from an iron-rich fluorapatite concentrate: Part II: Selective leaching of calcium and phosphate and acid baking of the residue
Abstract Apatite concentrate is an important source of phosphate and contains significant amounts of rare earth elements (REEs). In this study, the possibility of selective phosphoric acid leachingExpand
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Leaching and recovery of phosphate and rare earth elements from an iron-rich fluorapatite concentrate: Part I: Direct baking of the concentrate
Abstract The present study is focused on the leaching and recovery of phosphate and Rare Earth Elements (REEs) from the Esfordi phosphate concentrate (Yazd province, Iran), which contains 16.31% P,Expand
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Selective Nitric Acid Leaching of Rare-Earth Elements from Calcium and Phosphate in Fluorapatite Concentrate
Esfordi phosphate concentrate (Yazd Province, Iran) contains 13.1% P, 34.6% Ca, and 1.09% rare-earth elements (REEs), being one of the most important sources of REEs in Iran. REEs can be extractedExpand
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Direct Leaching of Low-Grade Zinc Oxide Ore Containing High Amounts of Iron and Manganese
Consumption of zinc metal has been rapidly increased in the world. Zinc metal exists as oxide, sulfide, carbonate and silicate ores, among which zinc oxide ores have not been mined because it is veryExpand
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Optimization of Cu–Zn Massive Sulphide Flotation by Selective Reagents
Selective floatation of base metal sulphide minerals can be achieved by using selective reagents. Sequential floatation of chalcopyrite–sphalerite from Taknar (Iran) massive sulphide ore with 3.5 %Expand
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Taknar polymetal (Cu-Zn-Au-Ag-Pb) deposit and concentration flotation plant are located in the northeast of Iran. The flotation feed contains Chalcopyrite, sphalerite and pyrite with 4, 4 and 8Expand
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Leaching and solvent extraction purification of zinc from Mehdiabad complex oxide ore
An integrated hydrometallurgical process was used for the zinc leaching and purification from a zinc ore containing 9.75 wt% zinc. The zinc minerals in the ore were hemimorphite, willemite, andExpand