scholarly journals Investigation of the kinetics of the dissolution of minerals by the rotating disk method

2020 ◽  
Vol VIII(233) (28) ◽  
pp. 17-21
Author(s):  
L. V. Ivanchenko ◽  
V. Ya. Kozhukhar ◽  
V. V. Brem
Keyword(s):  
Rotating Disk ◽  
Kinetics Of ◽  
Disk Method ◽  
Dissolution Of Minerals

Study of the kinetics of dissolution of copper ferritic by the rotating disk method

2018 ◽  
pp. 29-32
Author(s):  
D. S. Reutov ◽  
◽  
B. D. Khalezov ◽  
L. A. Ovchinnikova ◽  
A. S. Gavrilov ◽  
...  
Keyword(s):  
Rotating Disk ◽  
Kinetics Of Dissolution ◽  
Kinetics Of ◽  
Disk Method

Kinetics of Aqueous Polysulfide Solutions: Part III . Investigation of Homogeneous and Electrode Kinetics by the Rotating Disk Method

1987 ◽  
Vol 134 (11) ◽  
pp. 2669-2677 ◽  
Author(s):  
Philip Lessner ◽  
Frank R. McLarnon ◽  
Jack Winnick ◽  
Elton J. Cairns
Keyword(s):  
Rotating Disk ◽  
Electrode Kinetics ◽  
Kinetics Of ◽  
Disk Method

To the Problem of Reducing the Amount of Harmful Emissions when Refining Silver

2018 ◽  
Vol 284 ◽  
pp. 877-881
Author(s):  
Sergey E. Polygalov ◽  
S.A. Mastugin ◽  
E.A. Shadrina
Keyword(s):  
Nitric Acid ◽  
Nitrogen Oxides ◽  
Dissolution Rate ◽  
Rotating Disk ◽  
Oxidation Potential ◽  
Solution Temperature ◽  
Harmful Emissions ◽  
Environmentally Friendly Process ◽  
Silver Dissolution ◽  
Kinetics Of

The work is devoted to the study of the possibilities of minimizing the release of nitrogen oxides during the dissolution of silver in nitric acid solutions during refining of the gold and silver alloy. Using a rotating disk, the maximum concentration of nitric acid is determined, at which the oxidation potential of the system is insufficient for the oxidation of silver. It has been established that at a temperature of 363 K and a concentration of HNO3 = 50 g/l, the dissolution rate of silver does not exceed 0.00022∙10-5 mol/(cm2∙s), and such conditions can be considered as background for an environmentally friendly process. To initiate dissolution, hydrogen peroxide was used as an alternative oxidizing agent. As a criterion for the rational use of the oxidant and the ecological purity of the process, the excess pressure over the solution was evaluated. The influence of the initial and current composition of the solution, temperature, and conditions of oxidant supply to the reactor on the kinetics of the target process was studied. It is shown that at a silver dissolution rate of 2.7∙10-6 mol/(cm2∙s), no release of nitrogen oxides was observed.

Investigation of Corrosion of Cement-Based Materials by Using of Rotating Disc Method

2012 ◽  
Vol 238 ◽  
pp. 153-156 ◽  
Author(s):  
Daniel Dobiáš
Keyword(s):  
Corrosion Rate ◽  
Rotating Disk ◽  
Rotating Disc ◽  
Liquid Solutions ◽  
Cement Based Materials ◽  
Scope Of Application ◽  
Aggressive Liquid ◽  
Disk Method

The paper introduces the rotating disk method, its features and the scope of application. It also describes the application of this technique in the research of corrosion of cement-based materials caused by aggressive liquid solutions and the effect of flow of solutions on the corrosion rate

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