scholarly journals Investigation of copper(I) sulphide leaching in oxidative hydrochloric acid solution

10.30544/71 ◽  
2015 ◽  
Vol 21 (4) ◽  
pp. 253-258 ◽  
Author(s):  
Branislav Marković ◽  
Miroslav Sokić ◽  
Željko Kamberović ◽  
Dragana Živković ◽  
Nada Štrbac ◽  
...  
Keyword(s):  
Sodium Chloride ◽  
Hydrochloric Acid ◽  
Acid Solution ◽  
Hydrochloric Acid Solution ◽  
Passive Layer ◽  
Chloride Ions ◽  
Elemental Sulphur ◽  
Gaseous Oxygen ◽  
Influence Of Temperature ◽  
Leaching Reaction

Present work is focused on the copper (I) sulphide leaching with sodium chloride in hydrochloric acid solution and with introduction of gaseous oxygen. Chemical reactions of leaching and their thermodynamic probabilities are predicted based on the literature data and products which were formed during the process and the overall leaching reaction was defined. The influence of temperature and time on the leaching degree of copper was experimentally determined. The quantity of dissolved copper increases with the increase of both investigated parameters. Elemental sulphur was formed as the main leaching product, precipitated at the particle surfaces and chloride ions have a role to disrupt the creation of this passive layer.

EIS study on pitting corrosion of 7150 aluminum alloy in sodium chloride and hydrochloric acid solution

2010 ◽  
Vol 61 (9) ◽  
pp. 783-789 ◽  
Author(s):  
G. S Peng ◽  
K. H. Chen ◽  
H. C. Fang ◽  
H. Chao ◽  
S. Y. Chen
Keyword(s):  
Aluminum Alloy ◽  
Sodium Chloride ◽  
Hydrochloric Acid ◽  
Acid Solution ◽  
Hydrochloric Acid Solution ◽  
Pitting Corrosion

A 35Cl magnetic resonance study of chloride exchange on indium(III) and thallium(III) in aqueous hydrochloric acid solution

1975 ◽  
Vol 28 (9) ◽  
pp. 1901 ◽  
Author(s):  
SF Lincoln ◽  
AC Sandercock ◽  
DR Stranks
Keyword(s):  
Exchange Rate ◽  
Magnetic Resonance ◽  
Hydrochloric Acid ◽  
Acid Solution ◽  
Hydrochloric Acid Solution ◽  
Magnetic Resonance Study ◽  
Aqueous Hydrochloric Acid ◽  
Chloride Exchange ◽  
Lower Limits ◽  
Aqueous Hydrochloric Acid Solution

The parameters describing chloride exchange on indium(III), determined by 35Cl N.M.R., are: k(298 K)= (8.8�0+4) x 106 s-1, ΔH? = 45.7�2.3 kJ mol-1 and ΔS? = 42�8 J mol-1 K-1; and k(298 K)= (2.0�0.1)x106 s-1, ΔH? = 37.7�1.9 kJ mol-1, and ΔS? = 3�6 J mol-1 K-1 in 10.95M and 7.00M aqueous hydrochloric acid respectively, calculated from the observed exchange rate kex4[InCl4(H2O)2-].��� For thallium(III) lower limits of kex(219 K) = 1.6 x 106 s-1 and 1.3 x 106 s-1 were obtained in 10.95M and 7.00M aqueous hydrochloric acid, respectively, where [TlCl6]3- is assumed to be the exchanging species.

scholarly journals Investigation of the corrosion inhibition of carbon steel in hydrochloric acid solution by using ginger roots extract

RSC Advances ◽  
2017 ◽  
Vol 7 (40) ◽  
pp. 24576-24588 ◽  
Author(s):  
H. S. Gadow ◽  
M. M. Motawea
Keyword(s):  
Carbon Steel ◽  
Hydrochloric Acid ◽  
Acid Solution ◽  
Corrosion Inhibition ◽  
Hydrochloric Acid Solution ◽  
Adsorption Behavior ◽  
Different Temperatures ◽  
Hcl Solution

The inhibitive effect and adsorption behavior of ginger roots extract (GRE) on the corrosion of carbon steel in 1.0 M HCl solution at different temperatures were investigated.

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