Feasibility of Applying a Rotary Kiln to Roast Vanadium in Domestic Titanium-Magnetite Ore

Sang-hun Lee; Kyeong Woo Chung

doi:10.32390/ksmer.2021.58.1.030

All Issue

2021 Vol.58, Issue 1S Preview Page Next Page

Research Paper (Special Issue)

Feasibility of Applying a Rotary Kiln to Roast Vanadium in Domestic Titanium-Magnetite Ore 국내 티탄철광내 바나듐 염배소를 위한 로터리 킬른 이용 타당성 연구

28 February 2021. pp. 30-36

PDF XML

Abstract

We investigated the feasibility of roasting domestic vanadium titanium-magnetite ore in a rotary kiln as a pretreatment to effectively leach vanadium from the ore. Such feasibility analyses should consider the various mechanisms and aspects of rotary kilns such as structure, thermal fluid flow, heat/mass transfer, solid (ore particulate) bed behavior, and reaction/operation optimization. However, this study focused on critical process engineering factors such as the residence time of ores and temperature distributions in rotary kilns. The results show that if conventional rotary kilns are modified to resolve some issues such as possible unwanted suspension of fine solid particles and non-uniform distributions of ore bed temperatures in the kiln, an improved roasting performance can be expected. The modifications may include ensuring a sufficient roasting time by installing a circular dam at the end of the rotary kiln.

Keywords

Roasting

Rotary Kiln

Vanadium

Vanadium titanium-magnetite ore

Temperature

국내 바나듐함유 티탄철광내 바나듐을 효율적으로 침출시키기 위하여 전처리로서 로터리킬른을 이용한 염배소 공정의 타당성을 검토하였다. 이러한 적용 타당성 분석은 로터리 킬른 구조, 열유체 흐름, 열/물질전달, 광석의 이송, 운전 최적화 등 다양한 측면에서 고려되어야 하지만 본 논문에서는 공정상 핵심 인자 즉 로터리 킬른내 광석의 체류시간이나 온도분포 등에 중점을 두었다. 그 결과 미세입자 비산, 킬른내 온도구배 등의 문제가 해결된다면 통상적인 로터리 킬른의 개량을 통한 배소효과의 향상을 기대하며 이러한 개량에는 킬른 End 부위 Circular Dam 설치를 통한 킬른내 광석의 충분한 체류시간 확보 등이 포함될 수 있을 것이다.

키워드

배소

로터리킬른

바나듐

바나듐티탄자철광

온도

References

Biswas, D.K., Asthana, S.R., and Rau, V.G., 2003. Some studies on energy savings in sponge iron plants. Journal of Energy Resources Technology, 125, p.228-237. 10.1115/1.1577601

Boateng, A.A., 2008. Rotary Kilns - Transport Phenomena and Transport Processes. Elsevier Inc., United Kingdom.

Chatterjee, A., Sathe, A.V., Sprivastava, M.P., and Mukhopadhyay, P.K., 1983. Flow of materials in rotary kilns used for sponge iron manufacture: Part I. Effect of some operational variables. Metallurgical Transactions B, 14, p.375-381. 10.1007/BF02654356

Fan, X., Yang, G., Chen, X., Gao, L., Huang, X., and Li, X., 2015. Predictive models and operation guidance system for iron ore pelletinduration in traveling grate-rotary kiln process. Computers and Chemical Engineering, 79, p.80-90. 10.1016/j.compchemeng.2015.04.035

Gaurav, G.K. and Khanam, S., 2016. Analysis of temperature profile and % metallization in rotary kiln of sponge iron process through CFD. Journal of the Taiwan Institute of Chemical Engineers, 63, p.473-481. 10.1016/j.jtice.2016.02.035

KORES, 2020, Vanadium overview. KORES annual report.

Kramers, H., and Croockewit, P., 1952. The passage of granular solids through inclined rotary kilns. Chemical Engineering Science, 1, p.259-265. 10.1016/0009-2509(52)87019-8

Liu, C., Zhang, Y., and Bal, S., 2017. Vanadium recovery from stone coal through roasting and flotation. Transactions of Nonferrous Metals Society of China, 27, p.197-203. 10.1016/S1003-6326(17)60022-0

Lmtiaz, M., Rizwan, M.S., Xiong, S., Li, H., Ashraf, M., Shahzad, S.M., Shahzad, M., Rizwan, M., and Tu, S., 2015. Vanadium, recent advancements and research prospects: A review. Environment International, 80, p.79-88. 10.1016/j.envint.2015.03.01825898154

Mujumdar, K.S. and Ranade, V.V., 2006. Simulation of rotary cement kilns using a one-dimensional model. Chemical Engineering Research and Design, 84, p.165-177. 10.1205/cherd.04193

Nam, C., 2020. KIGAM workshop report 2020, p.42-51.

Runkana, V., Kumar, Natekar, P.V., Bandla, V., and Pothal, G., 2010. Mathematical modelling of sponge iron production in a rotary kiln. Steel Tech, 5, p.9-17.

Tang, J., Zhang, Y., Bao, S., and Liu, C., 2016. Pre-concentration of vanadium- bearing mica from stone coal by roasting- flotation. Physicochemical Problems of Mineral Processing, 53, p.402-412.

Wang, J., Wang, S., Zhang, Lin., Du, G., and He, W., 2017. Industrial application of large rotary kiln for recovery of vanadium from vanadium slag added MnVO₄ in calcium roasting process. The Iron and Steel Institute of Japan International, 57, p.2252-2262. 10.2355/isijinternational.ISIJINT-2017-097

Wang, M., Huang, S., Chen, B., and Wang, X., 2018. A review of processing technologies for vanadium extraction from stone coal. Mineral Processing and Extractive Metallurgy, p.1-9.

Zhang, C., Sun, C., Li, H., Yin, W., and Zhou, J., 2020. Blank roasting kinetics of illite type vanadium bearing stone coal. Journal of Materials Research and Technology, 9, p.7363-7369. 10.1016/j.jmrt.2020.05.010

Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
Journal Title(Ko) :한국자원공학회지
Volume : 58
No :1
Pages :30-36
Received Date : 2021-01-20
Revised Date : 2021-02-15
Accepted Date : 2021-02-23
DOI :https://doi.org/10.32390/ksmer.2021.58.1.030

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

All Issue