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Article
Peer-Review Record

Study on Reductive Smelting of High-Iron Red Mud for Iron Recovery

Metals 2022, 12(4), 639; https://doi.org/10.3390/met12040639
by Xuewei Yang 1,*, Xin Chen 2, Tingan Zhang 1, Jiayuan Ye 3, Guozhi Lv 1 and Jinshan Zhang 3
Reviewer 1: Anonymous
Reviewer 2: Anonymous
Reviewer 3: Anonymous
Metals 2022, 12(4), 639; https://doi.org/10.3390/met12040639
Submission received: 2 March 2022 / Revised: 2 April 2022 / Accepted: 5 April 2022 / Published: 8 April 2022
(This article belongs to the Special Issue Advances in Slag Metallurgy)

Round 1

Reviewer 1 Report

Dear authors,

  1. The numbers of the reactions in Figures 2.1 and 2.2 do not agree with the rections numbers. Please correct it.
  2. You metion alkalinity but you never defines it. I know it but for clarity reasons you have better to define it.
  3. Axis in Figure 2.6 is in Chinese. Please all must be in English.
  4. 4. From lines 438 to 443 you started to talkabout Figures 15, etc instead of 2.15. Please decide the way you wnt to number the figures.
  5. In table 3 please write Fe instead of Fe.

 

Author Response

Point 1:The numbers of the reactions in Figures 2.1 and 2.2 do not agree with the rections numbers. Please correct it.

Response 1: Thank you for your reminder. I have modified the article from 2.1~2.20 to 3.1~3.20.

 

Point 2:You metion alkalinity but you never defines it. I know it but for clarity reasons you have better to define it.

Response 2: Thank you for your advice. I have defined the alkalinity in the article. The definition of the alkalinity is as follows:

The basicity of slag is an index of slag characteristics. It is the symbol of the free oxygen ion concentration in slag and the main index of the chemical properties of slag. It is also one of the important bases for determining the slag formation system of a blast furnace. Usually, it is expressed by the ratio of the mass percentage concentration of alkaline oxides to acidic oxides.

Point 3:The axis in Figure 2.6 is in Chinese. Please all must be in English.

Response 3:  Thank you for your reminder. I have modified the text.

Point 4:From lines 438 to 443 you started to talkabout Figures 15, etc., instead of 2.15. Please decide the way you wnt to number the figures.

Response 4: Thank you for your reminder. I have corrected Figure 2.15. In addition, I want to remind the number of figures as in the article.

Point 5:In table 3 please write Fe instead of Fe.

Response 5:Thank you for your reminder. I have modified the text.

Reviewer 2 Report

Xue'wei Yang1 , Xin Chen2 , Ting'an Zhang1 , Jia'yuan Ye3 ,

Guo'zhi Lv 1, Jin'shan Zhang3 Where name number poz. 4, 5, 6?

Key words: Red mud1; Iron extraction2; Melting3; Reduction4; Thermokinetics of reaction5

Table 2 Red mud content/% 3.1010  6.67.67
Calcified slag content/% 15.325.32

Table 3 As in table 2

Table 5 As in table 2

Fig. 2 (a), (b), (c) What are these parentheses for?

Fig. 2 Do the inscriptions 100 micrometers have to be placed twice?

Line 544 Use a semicolon; instead comma.

References: The names of authors are written sometimes with capital letters and other times with lowercase letters

Author Response

Point 1:Xue'wei Yang1, Xin Chen2, Ting'an Zhang1, Jia'yuan Ye3,

Guo'zhi Lv 1, Jin'shan Zhang3 Where name number poz. 4, 5, 6?

Response 1: OK, Thank you for your reminder. I have modified the text.

Point 2:Key words: Red mud1; Iron extraction2; Melting3; Reduction4; Thermokinetics of reaction5

Response 2: OK,Thank you. I have modified the text.

Point 3:Table 2 Red mud content/% 3.1010 6.67.67
Calcified slag content/% 15.325.32

Response 3: Thank you for your reminder. I have modified the text.

Point 4:Table 3 As in table 2

Response 4:Thank you for your reminder. I have modified the text.

Point 5:Table 5 As in table 2

Response 5:Thank you for your reminder. I have modified the text.

Point 6:Fig. 2 (a), (b), (c) What are these parentheses for?

Response 6:Fig. 2.15 shows three pictures of the reduced metal and tailings in the optimal group. The brackets have no practical meaning and only distinguish them from the letters in the text.

Point 7:Fig. 2 Do the inscriptions 100 micrometers have to be placed twice?

Response 7:Thank you for your reminder. I have double checked the pictures, and the second picture of the inscriptions micrometers has been modified to 40.

Point 8:Line 544 Use a semicolon; instead comma.

Response 8:Thank you for your reminder. I have modified the text.

Point 9:References: The names of authors are written sometimes with capital letters and other times with lowercase letters

Response 9:Thank you for your reminder. I have modified the text.

Reviewer 3 Report

The work is very intersting. The authors should specify wh/kg of reduced iron. It is not mandatory but recommended.

Author Response

Point 1:The work is very intersting. The authors should specify wh/kg of reduced iron.

Response 1:Thank you,I have specified this in the article. Under this condition, we can obtain 400 kg of iron and 500 ~ 600 kg of water quenched slag per ton of red mud.

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