Upgradation of low-grade ferruginous chromite ore by reduction roasting using conventional and microwave heating

Sunil Kumar Tripathy; S. Prasad; S. Z. Khan; Y. Rama Murthy; Veerendra Singh; Gajanan Kapure

Upgradation of low-grade ferruginous chromite ore by reduction roasting using conventional and microwave heating

Sunil Kumar Tripathy, S. Prasad, S. Z. Khan, Y. Rama Murthy, Veerendra Singh, Gajanan Kapure

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this study, a low-grade ferruginous low-grade chromite ore was subjected to reduction roasting by using conventional heating as well as microwave heating. Sukinda chromite ore deposit contains majorly iron-bearing minerals as gangue phase. The magnetic susceptibility of these minerals enhances effectively after reduction roasting. Alteration of crystalline structure and magnetic property of these metals enables separation of low-grade ore by using magnetic separation. Conventional roasting studies by varying the temperature, time of reduction and reductant dosage were changed for low-grade ferruginous chromite ore. Similarly, microwave power, retention/exposure time and reductant dosage varied for reduction roasting studies under microwave environment. It is found that low-grade ferruginous chromite ore can be upgraded by reduction roasting and 61.2% Cr ₂ O ₃ was recovered with a chromium-to-iron ratio of 1.93 from feed chromium-to-iron ratio of 1. Microwave reduction roasting studies resulted in upgradation of chromium-to-iron ratio to 1.73

Original language	English (US)
Title of host publication	IMPC 2018 - 29th International Mineral Processing Congress
Publisher	Canadian Institute of Mining, Metallurgy and Petroleum
Pages	4073-4082
Number of pages	10
ISBN (Electronic)	9787030227119
State	Published - 2019
Externally published	Yes
Event	29th International Mineral Processing Congress, IMPC 2018 - Moscow, Russian Federation Duration: Sep 17 2018 → Sep 21 2018

Publication series

Name	IMPC 2018 - 29th International Mineral Processing Congress

Conference

Conference	29th International Mineral Processing Congress, IMPC 2018
Country/Territory	Russian Federation
City	Moscow
Period	9/17/18 → 9/21/18

Bibliographical note

Publisher Copyright:
© IMPC 2018 - 29th International Mineral Processing Congress. All rights reserved.

Keywords

Ferruginous chromite ore
Magnetic separation
Microwave heating
Reduction roasting

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Tripathy, S. K., Prasad, S., Khan, S. Z., Rama Murthy, Y., Singh, V., & Kapure, G. (2019). Upgradation of low-grade ferruginous chromite ore by reduction roasting using conventional and microwave heating. In IMPC 2018 - 29th International Mineral Processing Congress (pp. 4073-4082). (IMPC 2018 - 29th International Mineral Processing Congress). Canadian Institute of Mining, Metallurgy and Petroleum.

Upgradation of low-grade ferruginous chromite ore by reduction roasting using conventional and microwave heating. / Tripathy, Sunil Kumar; Prasad, S.; Khan, S. Z. et al.
IMPC 2018 - 29th International Mineral Processing Congress. Canadian Institute of Mining, Metallurgy and Petroleum, 2019. p. 4073-4082 (IMPC 2018 - 29th International Mineral Processing Congress).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Tripathy, SK, Prasad, S, Khan, SZ, Rama Murthy, Y, Singh, V & Kapure, G 2019, Upgradation of low-grade ferruginous chromite ore by reduction roasting using conventional and microwave heating. in IMPC 2018 - 29th International Mineral Processing Congress. IMPC 2018 - 29th International Mineral Processing Congress, Canadian Institute of Mining, Metallurgy and Petroleum, pp. 4073-4082, 29th International Mineral Processing Congress, IMPC 2018, Moscow, Russian Federation, 9/17/18.

Tripathy SK, Prasad S, Khan SZ, Rama Murthy Y, Singh V, Kapure G. Upgradation of low-grade ferruginous chromite ore by reduction roasting using conventional and microwave heating. In IMPC 2018 - 29th International Mineral Processing Congress. Canadian Institute of Mining, Metallurgy and Petroleum. 2019. p. 4073-4082. (IMPC 2018 - 29th International Mineral Processing Congress).

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abstract = " In this study, a low-grade ferruginous low-grade chromite ore was subjected to reduction roasting by using conventional heating as well as microwave heating. Sukinda chromite ore deposit contains majorly iron-bearing minerals as gangue phase. The magnetic susceptibility of these minerals enhances effectively after reduction roasting. Alteration of crystalline structure and magnetic property of these metals enables separation of low-grade ore by using magnetic separation. Conventional roasting studies by varying the temperature, time of reduction and reductant dosage were changed for low-grade ferruginous chromite ore. Similarly, microwave power, retention/exposure time and reductant dosage varied for reduction roasting studies under microwave environment. It is found that low-grade ferruginous chromite ore can be upgraded by reduction roasting and 61.2% Cr 2 O 3 was recovered with a chromium-to-iron ratio of 1.93 from feed chromium-to-iron ratio of 1. Microwave reduction roasting studies resulted in upgradation of chromium-to-iron ratio to 1.73",

keywords = "Ferruginous chromite ore, Magnetic separation, Microwave heating, Reduction roasting",

author = "Tripathy, {Sunil Kumar} and S. Prasad and Khan, {S. Z.} and {Rama Murthy}, Y. and Veerendra Singh and Gajanan Kapure",

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AU - Singh, Veerendra

AU - Kapure, Gajanan

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N2 - In this study, a low-grade ferruginous low-grade chromite ore was subjected to reduction roasting by using conventional heating as well as microwave heating. Sukinda chromite ore deposit contains majorly iron-bearing minerals as gangue phase. The magnetic susceptibility of these minerals enhances effectively after reduction roasting. Alteration of crystalline structure and magnetic property of these metals enables separation of low-grade ore by using magnetic separation. Conventional roasting studies by varying the temperature, time of reduction and reductant dosage were changed for low-grade ferruginous chromite ore. Similarly, microwave power, retention/exposure time and reductant dosage varied for reduction roasting studies under microwave environment. It is found that low-grade ferruginous chromite ore can be upgraded by reduction roasting and 61.2% Cr 2 O 3 was recovered with a chromium-to-iron ratio of 1.93 from feed chromium-to-iron ratio of 1. Microwave reduction roasting studies resulted in upgradation of chromium-to-iron ratio to 1.73

AB - In this study, a low-grade ferruginous low-grade chromite ore was subjected to reduction roasting by using conventional heating as well as microwave heating. Sukinda chromite ore deposit contains majorly iron-bearing minerals as gangue phase. The magnetic susceptibility of these minerals enhances effectively after reduction roasting. Alteration of crystalline structure and magnetic property of these metals enables separation of low-grade ore by using magnetic separation. Conventional roasting studies by varying the temperature, time of reduction and reductant dosage were changed for low-grade ferruginous chromite ore. Similarly, microwave power, retention/exposure time and reductant dosage varied for reduction roasting studies under microwave environment. It is found that low-grade ferruginous chromite ore can be upgraded by reduction roasting and 61.2% Cr 2 O 3 was recovered with a chromium-to-iron ratio of 1.93 from feed chromium-to-iron ratio of 1. Microwave reduction roasting studies resulted in upgradation of chromium-to-iron ratio to 1.73

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KW - Microwave heating

KW - Reduction roasting

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Upgradation of low-grade ferruginous chromite ore by reduction roasting using conventional and microwave heating

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