Gold recovery from ammonia-thiosulfate leaching solution assisted by PEI-functionalized magnetite nanoparticles

2019 ◽  
Vol 189 ◽  
pp. 105128 ◽  
Author(s):  
Juan C. Betancur ◽  
Paula M. Montoya ◽  
Jorge A. Calderón
Keyword(s):  
Magnetite Nanoparticles ◽  
Gold Recovery ◽  
Leaching Solution ◽  
Thiosulfate Leaching

Research Status of Gold Recovery from Thiosulfate Leaching Solution

2013 ◽  
Vol 734-737 ◽  
pp. 977-981 ◽  
Author(s):  
Qi Meng ◽  
Yi Qi Cui ◽  
Xiong Tong ◽  
Peng Dong ◽  
Kai Wang
Keyword(s):  
Solvent Extraction ◽  
Gold Recovery ◽  
Research Status ◽  
Carbon Adsorption ◽  
Leaching Solution ◽  
Resin Adsorption ◽  
Thiosulfate Leaching ◽  
Recovery Methods

The main recovery methods of gold from thiosulfate leaching solution are introduced, such as replacement precipitation, carbon adsorption, ionexchange resin adsorption, and solvent extraction. Research status of different process and their advantages/disadvantages are reviewed briefly. The research prospects on the methods are also given.

Gold recovery from shredder light fraction of E-waste recycling plant by flotation-ammonium thiosulfate leaching

2018 ◽  
Vol 77 ◽  
pp. 195-202 ◽  
Author(s):  
Sanghee Jeon ◽  
Mayumi Ito ◽  
Carlito Baltazar Tabelin ◽  
Rongrit Pongsumrankul ◽  
Naho Kitajima ◽  
...  
Keyword(s):  
Waste Recycling ◽  
Light Fraction ◽  
Gold Recovery ◽  
Ammonium Thiosulfate ◽  
Thiosulfate Leaching

Gold recovery from copper anode slime by means of magnetite nanoparticles (MNPs)

2014 ◽  
Vol 143 ◽  
pp. 54-59 ◽  
Author(s):  
R. Ranjbar ◽  
M. Naderi ◽  
H. Omidvar ◽  
Gh. Amoabediny
Keyword(s):  
Magnetite Nanoparticles ◽  
Gold Recovery ◽  
Anode Slime ◽  
Copper Anode ◽  
Copper Anode Slime

scholarly journals Flotation of Carbonaceous Matter from a Double Refractory Gold Ore: The Effect of MIBC on Flotation Performance and Kinetics

Minerals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1021
Author(s):  
Sugyeong Lee ◽  
Charlotte E. Gibson ◽  
Ahmad Ghahreman
Keyword(s):  
Bubble Size ◽  
Gold Recovery ◽  
Carbonaceous Matter ◽  
Flotation Kinetics ◽  
Pressure Oxidation ◽  
Gold Ore ◽  
Refractory Gold ◽  
Flotation Performance ◽  
Thiosulfate Leaching

The use of alkaline pressure oxidation to pretreat refractory gold ore often results in insufficient gold recovery (<60%) in downstream thiosulfate leaching. To improve gold recovery, flotation was considered for the separation of carbonaceous matter (C-matter). In this study, the effect of MIBC on C-matter flotation was investigated to understand the role of the frother in bubble and froth formation and on flotation kinetics. MIBC dosages between 30 and 150 g/t were used in combination with 500 g/t of kerosene as a collector. The results showed that the recovery and selectivity of C-matter were improved with increasing MIBC dosages. Improved selectivity at higher MIBC dosages was attributed to faster C-matter recovery as bubble size decreased to the critical coalescence concentration (CCC) and to changes to the foam structure. Analysis of flotation kinetics showed that the flotation rate increased as the MIBC dosage increased due to the decreasing bubble size and the reduced induction time caused by the interaction between the collector and the frother. The results of this study explain the role of MIBC in C-matter flotation and can be used as a design basis for scavenger-cleaner flotation testing. Overall, the results show the potential for flotation as a means to improve gold recovery in thiosulfate leaching through the removal of C-matter.

scholarly journals A Review of Thiosulfate Leaching of Gold: Focus on Thiosulfate Consumption and Gold Recovery from Pregnant Solution

Metals ◽  
2017 ◽  
Vol 7 (6) ◽  
pp. 222 ◽  
Author(s):  
Bin Xu ◽  
Wenhao Kong ◽  
Qian Li ◽  
Yongbin Yang ◽  
Tao Jiang ◽  
...  
Keyword(s):  
Gold Recovery ◽  
Thiosulfate Leaching ◽  
Pregnant Solution
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