Application of FTA Analysis for Calculation of the Probability of the Failure of the Pressure Leaching Process

Round 1

Reviewer 1 Report

The reviewed article presents a scientific research work focused on FTA Analysis in the framework of the Pressure Leaching Process. In this article, there are several minor errors. For example, the references 16,17 are not in text in brackets, it is advisable to check all chemical symbols as well as the equations, as the superscripts and subscripts are incorrect.
Could the authors explain the difference between Methods and Measurement methods in rows 123 and 124? The authors could include 7M or even 8M in the Ishikawa diagram. It seems appropriate to add "Management" to manage the leaching process. Is the probability of each basic event long enough? Did you not intend to increase the number of samples in your research, especially for acidic environments (so far basic based on NaOH), but also for a wider range of working temperatures (120°C and 185°C) and leaching times (reaction time)? The use of statistical methods, such as hypothesis testing and analysis of variance (to determine the statistical significance of individual factors, such as temperature, leaching time, etc.) was not considered. 

I recommend publishing this article after the implementation of my comments.

Author Response

Thank you so much for comments and incorporated. All comments were accepted. No file is needed.

Reviewer 2 Report

1. What is the basic idea of work, because it is obvious that laboratory experiments are connected with errors refer to experiments conditions, materials or quality of equipments especially during leaching trials with high pressure and higher temperature.
2. The section introduction must be rebuilt, because the main aim of work is FTA not leaching of pyrite therefore paper in this form generate some confusions.
3. Why Authors present methodology of experiment for rotating autoclave Lampart. Did Authors perform leaching process in these autoclave? Moreover finally conclusions from submitted works should be compare with real laboratory experiments on leaching process e.g. arsenic pyrite or pyrite in the NaOH solution in accordance with section introduction.
4. How was calculated probability of each basic event from Table 2. Data on 1011 leaching experiments should be add to paper i.e. type of autoclave, type of materials, type of leaching conditions.
5. Line 62 L/S means rather liquid/solid than liquidus/solidus.
6. What means a legend in the figure 3.

Author Response

Thank you so much for comment. I add a file contain answers to individual comments.

Author Response File: Author Response.docx

Round 2

Reviewer 2 Report

Dear Authors,

Thank You very much for your responses. For Readers is required to add RW3 and RW4 to text of paper, off course in the suitable form. Additionally legend from figure 3 probably must be improve. Please check that comma is correct sign between numbers.

Best regards

Author Response

Thanks for your comments. All relevant comments were incorporated into the manuscript.