Recovery of Ammonium Metavanadate from Spent Catalyst

Lienda Aliwarga, Maya Ramadianti Musadi

Abstract


Utilization of spent catalysts serves to meet the needs of vanadium and to overcome the environmental problem since vanadium is categorized as a hazardous, toxic material. Vanadium from the spent catalysts can be recovered in the form of V2O5 or NH4VO3. However, vanadate compounds (NH4VO3) are considered to be more valuable due to their higher price and easier production process, compared with V2O5. This study aims to find adequate operating conditions to obtain high yields and high purity of NH4VO3 crystals. The results showed that the presence of iron compounds in the extract made the crystals contaminated by brownish colour, so it decreased its purity. Therefore, iron compounds need to be separated first with precipitation. Crystals of NH4VO3 with yield of 60% on spent catalysts and purity of 75% were obtained by extraction using solvent Na2CO3 1.887 M for 60 minutes at room temperature with weight ratio of V2O5 in spent catalyst toward solvent volume (Rvp), 0.006 gram V2O5/mL Na2CO3. It was then continued by precipitation of iron compounds at pH of 12 for 2 hours and crystallization of NH4VO3 using NH4Cl 11.215 M for 4 - 5 hours at 60oC.


Keywords


vanadium; vanadate; catalyst; waste; extraction

Full Text:

PDF

References


Ayres, D., & Hellier, D. (1998). Dictionary of Environmentally Important Chemicals. London: Blackie Academic & Professional.

Baker, R. H., Zimmerman, H., & Maxson, R. N. (1950). Ammonium Metavanadate. In Inorganic Sytheses Vol III (pp. 117-118). New York: McGraw Hill Book Company, Inc.

Ifa, L., & Nurjannah, N. (2017). Ekstraksi Vanadium Pentaoksida (V2O5) dari Katalis Bekas. Prosiding Seminar Nasional Teknologi IV. Samarinda.

Kar, B., Murthy, B., & Misra, V. (2005). Extraction of molybdenum from spent catalyst by salt-roasting. International Journal of Mineral Processing, 76, 143-147.

Kleinberg, J., Argersinger, W. J., & Griswold, E. (1960). Inorganic Chemistry. Boston: Heat.

Nordberg, G. (1998). Metal: Chemical Properties and Toxicity. In Encyclopaedia of Occupational Health and Safety, Volume 3 (p. 63.43). Jenewa: International Labour Organization.

Pourbaix, M. (1974). Atlas of Electrochemical Equilibria in Aqueous Solution, 2nd English ed. Texas: National Association of Corrosion Engineers.

Rokukawa, N. (1988). Recovery and Separation of Rare Metals (Molybdenum, Vanadium, Nickel, Cobalt) from Spent Catalyst by Fractional Precipitation. Kogai Shigen Kenkyusho Iho, 17(3), 7-12.

Sun, D., Li, X., Brungs, M., & Trimm, D. (1998). Encapsulation of heavy metals on spent fluid catalytic cracking catalyst. Water Science and Technology, 38, 211-217.

Sun, D., Tay, J., Cheong, H., Leung, D., & Qian, G. (2001). Recovery of heavy metals and stabilization of spent hydrotreating catalyst using a glass–ceramic matrix. Journal of Hazardous Materials B, 87, 213-223.

Van den Berg, J., Yang, Y., Nauta, H., van Sandwijk, A., & Reuter, M. (2002). Comprehensive processing of low grade sulphidic molybdenum ores. Minerals Engineering, 15, 879–883.

Zeng, L., & Cheng, C. (2009). A literature review of the recovery of molybdenum dan vanadium from spent hydrodesulphurisation catalyst part 1: metallurgical processes. Hydrometallurgy, 98, 1-9.

Zhang, P., Inoue, K., Yoshizuka, K., & Tsuyama, H. (1995). Recovery of metal values from spent hydrodesulfurisation catalyst by solvent extraction with PIA-8. Japan Chemistry 5, 412.

Zhang, P., Inoue, K., Yoshizuka, K., & Tsuyama, H. (1996). Extraction and selective stripping of molybdenum (VI) and vanadium (IV) from sulphuric acid solution stripping of molybdenum (VI) and vanadium (IV) from sulphuric acid solution containing aluminium (III), cobalt (II), nickel (II) and iron (III) by LIX 63 . Hydrometallurgy, 41, 45-53.




DOI: https://doi.org/10.23955/rkl.v15i1.12375

Article Metrics

Abstract view : 0 times
PDF - 0 times

Refbacks

  • There are currently no refbacks.


Copyright (c) 2020 Lienda Aliwarga, Maya Ramadianti Musadi

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

JURNAL REKAYASA KIMIA & LINGKUNGAN

Jurusan Teknik Kimia Universitas Syiah Kuala, Jl. Tgk. Syech Abdur Rauf No.7, Kopelma Darussalam, Banda Aceh, INDONESIA

 

PRINCIPAL CONTACT

Nasrul Arahman, Prof. Dr. S.T., M.T.
Phone: +62813-6092-7917
E-mail: rkl@che.usk.ac.id, nasrular@usk.ac.id

 

SUPPORT CONTACT

Mirna Rahmah Lubis
E-mail: mirna@che.usk.ac.id
Wahyu Rinaldi, ST, M.Sc.
E-mail: wahyu.rinaldi@che.usk.ac.id

 

VISITORS