Extraction of Tin (Sn) from Solder Dross by Using Hydrochloric Acid Leaching Treatment

This project deals with the experimental results of leaching of Sn from solder dross by means of leaching using different concentration of hydrochloric acid (HCl). Solder dross was sieved to obtain a mean particle size of 75 μm. The solder dross powder obtained was leached by using HCl acid aqueous solution. To optimize the parameter required for recovery of Sn from solder dross, initially the bench scale studies were carried out using varying acid concentration, stirring time and temperature. The experimental indicate that 98.7% of Sn was leached out from solder dross using 0.1M of HCl, 24 hours of stirring time at60°C solution temperature.

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Extraction of Tin (Sn) from Solder Dross by Using Citric Acid Leaching Treatment

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.754-755.571 ◽

2015 ◽

Vol 754-755 ◽

pp. 571-575

Author(s):

Syarifah Aminah Ismail ◽

Noorina Hidayu Jamil ◽

Kamarudin Hussin ◽

Mohd Arif Anuar Mohd Salleh

Keyword(s):

Citric Acid ◽

Acid Concentration ◽

Acid Leaching ◽

Suggested Method ◽

Solution Temperature ◽

Stirring Time ◽

Temperature Recovery

Solder dross containing Sn, Ni, Cu, Zn, Fe and other impurities was leached with 0.1-1.0 M citric acid at 60 °C for 24 hours stirring times. Parameter affecting the tin recovery of suggested method such as acid concentration, stirring time and temperature were investigated. Results obtained revealed that the optimum leaching parameter were achieved using 250ml of citric acid (C6H8O7) and 10 acid/g drossfor 24 hours at 60°Cof solution temperature. Recovery of tin from solder dross was 99.0%.

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Removal of Iron (Fe) in Rice Husk via Citric Acid Leaching Treatment

Materials Science Forum ◽

10.4028/www.scientific.net/msf.857.540 ◽

2016 ◽

Vol 857 ◽

pp. 540-546

Author(s):

Nur Haslinda Mohamed Muzni ◽

Noorina Hidayu Jamil ◽

Cheow Keat Yeoh

Keyword(s):

Citric Acid ◽

Acid Concentration ◽

Rice Husk ◽

Agricultural Waste ◽

Acid Leaching ◽

Industrial Applications ◽

Solution Temperature ◽

Process Conditions ◽

Optimum Conditions ◽

Stirring Time

Rice husk (RH) is an agricultural waste which has been utilized as useful renewable resources to produce energy with high-purity silica (SiO2) contents. With such a large availability of rice husk, it becomes economical to industrial applications. This paper was study about the removal of iron from rice husk in aqueous citric acid by using acid leaching treatment. The parameters chosen were reaction temperature, stirring speed, acid concentration and stirring time. The optimum conditions for the maximum removal of 0.14% of iron with citric acid leaching treatment were observed at solution temperature of 70°C; thermostat magnetic stirrer hotplate, 150 W; acid concentration 0.1M-1.0M; stirring time 6h-12h. This method resulted the removal efficiency of iron increasing considerably with the increasing leach C2H7O8 acid concentration. The optimization of the process conditions of the citric acid leaching treatment under the optimum conditions with 6h of stirring time and acid concentration of 1.0M were conducted to remove the metallic impurities of Fe from husks and shows remarkable result.

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Separation of Cu, Sn, Pb from photovoltaic ribbon by hydrochloric acid leaching with stannic ion followed by solvent extraction

Hydrometallurgy ◽

10.1016/j.hydromet.2017.05.003 ◽

2017 ◽

Vol 171 ◽

pp. 123-127 ◽

Cited By ~ 10

Author(s):

Gyeonghye Moon ◽

Kyoungkeun Yoo

Keyword(s):

Solvent Extraction ◽

Hydrochloric Acid ◽

Acid Leaching ◽

Hydrochloric Acid Leaching

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Hydrochloric acid leaching behaviour of mechanically activated Panxi ilmenite (FeTiO3)

Separation and Purification Technology ◽

10.1016/j.seppur.2010.03.022 ◽

2010 ◽

Vol 73 (2) ◽

pp. 173-178 ◽

Cited By ~ 15

Author(s):

Li Zhang ◽

Huiping Hu ◽

Liangping Wei ◽

Qiyuan Chen ◽

Jun Tan

Keyword(s):

Hydrochloric Acid ◽

Acid Leaching ◽

Hydrochloric Acid Leaching ◽

Leaching Behaviour

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Experimental Study on Concentrating Scandium by Leaching from Associated Scandium Ore

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.734-737.1033 ◽

2013 ◽

Vol 734-737 ◽

pp. 1033-1036

Author(s):

Gui Fang Zhang ◽

Peng Yan ◽

Qing Rong Yang

Keyword(s):

Experimental Study ◽

Particle Size ◽

Hydrochloric Acid ◽

Acid Concentration ◽

Hydrochloric Acid Concentration ◽

Leaching Rate ◽

Optimal Conditions ◽

Research Results ◽

Solid Ratio ◽

Leaching Residue

Based on the benefication of the complex silicate ore containing scandium, the research about aid-leaching agent used in the leaching of the scandium concentrate was been conducted. And the suitable leaching agent and aid-leaching agent which the useful ions entered into leaching liquid and the harmful ions were kept in leaching residue were been found according to the experiment results. For the scandium of sample existed various complex silicate ore as isomorphism form, the research has adopted hydrochloric acid with aid-leaching agent to dissociate the silicate ore and make scandium entering into solution. The research results has shown that the scandium leaching rate could reach 92.06% under the optimal conditions which the hydrochloric acid concentration is 22.8%, the dosage of aid leaching agent is 6%, liquid solid ratio is 4:1, particle size of leaching material totally is less than 0.15mm and leaching time is 8h.

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