Preparation of calcium stannate from lead refining slag by alkaline leaching-purification-causticization process

2019 ◽  
Vol 212 ◽  
pp. 119-125 ◽  
Author(s):  
Wei Liu ◽  
Wenhua Li ◽  
Junwei Han ◽  
Dixiu Wu ◽  
Zihan Li ◽  
...  
Keyword(s):  
Refining Slag ◽  
Alkaline Leaching ◽  
Lead Refining ◽  
Calcium Stannate

scholarly journals Preparation of Calcium Stannate from Lead Refining Dross by Roast–Leach–Precipitation Process

Minerals ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 283 ◽  
Author(s):  
Dixiu Wu ◽  
Junwei Han ◽  
Wei Liu ◽  
Fen Jiao ◽  
Wenqing Qin
Keyword(s):  
Precipitation Process ◽  
Lead Smelter ◽  
Solid Ratio ◽  
Lead Refining ◽  
Average Grain Size ◽  
Naoh Solution ◽  
Leaching Solution ◽  
Leaching Parameters ◽  
Optimized Conditions ◽  
Calcium Stannate

Lead refining dross containing plenty of tin and other heavy metals, such as lead and antimony, is considered a hazardous waste generated in large quantities in lead smelter plants. In this study, calcium stannate was synthesized from lead refining dross using sodium carbonate roasting and alkaline leaching followed by precipitation with CaO. The effect of roasting and leaching parameters on the extraction efficiency of tin was investigated. The leaching efficiency of tin reached 94% under the optimized conditions: roasting with 60% Na2CO3 at 1000 °C for 45 min, and leaching using 2 mol/L NaOH solution for 90 min at 85 °C and 8 cm3/g liquid/solid ratio. Furthermore, more than 99% of tin in the leaching solution was precipitated using CaO. Finally, XRD, SEM, and ICP-OES analyses indicated that the final CaSnO3 product had a purity of 95.75% and its average grain size was smaller than 5 μm. The results indicated that the developed method is feasible to produce calcium stannate from lead refining dross.

Comparison of oxidative roasting and alkaline leaching for removing chloride and fluoride from brass ashes

2021 ◽  
pp. 105619
Author(s):  
Júlia Mont'Alverne Martins ◽  
Achilles Junqueira Bourdot Dutra ◽  
Marcelo Borges Mansur ◽  
Alexandre Silva Guimarães
Keyword(s):  
Alkaline Leaching ◽  
Oxidative Roasting

Silicon and aluminum removal from ilmenite concentrates by alkaline leaching

2009 ◽  
Vol 96 (4) ◽  
pp. 327-332 ◽  
Author(s):  
G. Mazzocchitti ◽  
I. Giannopoulou ◽  
D. Panias
Keyword(s):  
Alkaline Leaching

Kinetic modelling of alkaline leaching of thorium hydroxide (Th(OH)4) from monazite

2021 ◽  
Author(s):  
Sanjith Udayakumar ◽  
Norlia Baharun ◽  
Sheikh Abdul Rezan ◽  
Aznan Fazli Ismail ◽  
Khaironie Mohamed Takip
Keyword(s):  
Kinetic Modelling ◽  
Alkaline Leaching ◽  
Thorium Hydroxide

Effects of mechanical activation on physicochemical properties and alkaline leaching of boron concentrate

2017 ◽  
Vol 173 ◽  
pp. 32-42 ◽  
Author(s):  
Yingzhe Xu ◽  
Tao Jiang ◽  
Mi Zhou ◽  
Jing Wen ◽  
Wanying Chen ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Mechanical Activation ◽  
Alkaline Leaching

Effect of Al2O3content on metallurgical characteristics of refining slag

2016 ◽  
Vol 43 (8) ◽  
pp. 607-615 ◽  
Author(s):  
H. Yu ◽  
J. Xu ◽  
J. Zhang ◽  
X. Wang
Keyword(s):  
Refining Slag

scholarly journals Application of Alkali Oxides in LF Refining Slag for Enhancing Inclusion Removal in C96V Saw Wire Steel

2018 ◽  
Vol 58 (7) ◽  
pp. 1232-1241 ◽  
Author(s):  
Yang Li ◽  
Changyong Chen ◽  
Zhouhua Jiang ◽  
Meng Sun ◽  
Hao Hu ◽  
...  
Keyword(s):  
Refining Slag ◽  
Inclusion Removal ◽  
Alkali Oxides ◽  
Wire Steel ◽  
Lf Refining

scholarly journals Effect of Medium Basicity Refining Slag on the Cleanliness of Al-killed Steel

2021 ◽  
Vol 61 (12) ◽  
pp. 2882-2888
Author(s):  
Huixiang Yu ◽  
Guangyuan Qiu ◽  
Jiaming Zhang ◽  
Xinhua Wang
Keyword(s):  
Refining Slag
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