Drying Process Optimization and Efficiency of Aluminum Fluoride (AlF3) Plant

Hanifah Inas Nastiti, Ryan Anindya Affan, Elly Agustiani

Abstract


Aluminum Fluoride (AlF3) is a substantive material used to reduce the melting point temperature of the Aluminum from 1500oC to 600-850oC. The production applies a wet process using raw materials of Fluosilicic Acid and Aluminum Hydroxide with a by-product of Silica Dioxide. In this case, AlF3 products are expected to have a maximum H2O content of 2.6%. However, in the production process, the H2O content reached 3% due to the inoptimum drying process. Therefore, the optimization process was carried out by increasing the dry air temperature of the recycle from stage 2 to stage 1 in the drying process, so that the mass transfer of H2O from AlF3 crystals to the air can be maximized. After the optimization, it was found that the H2O content has met the quality standard of 1.8%.

Keywords


Aluminum Fluoride; Fluosilicic Acid; Aluminum Hydroxide; Drying Process

Full Text:

PDF

References


Aziz, AA, Kiryanto and Santosa, AWB, 2017, "Analysis of Tensile Strength, Bending Strength, Composition and Casting Defects of Flat Bar Aluminum Alloy and Brake Pad Waste by Using Sand Molds and Hydraulic Molds as Ship Window Component Materials," Journal of Marine Engineering, 5(1), p. 120.

PT X, 2021. Aluminum Fluoride Operation Synergy Material

Nielsen, A. E. (1984) “GROWTH AND DISSOLUTION KINETICS OF ALUMINIUM FLUORIDE TRIHYDRATE,” 69.

Torochkov, E. and Gorbovskiy, C. (2020) “Improvements in Technology of AlF3 from FSA,” SSRN Electronic Journal, 1(1), p. 0–4. doi: 10.2139/ssrn.3638919.

Himmelblau, D.M., “Basic Principles and Calculation in Chemical Engineering“, 1989, Fifth Edition, Singapore

Kern D.Q., “Process Heat Transfer“, 1950, Mc. Graw Hill Book Company, Inc., Kogakusha Company, Tokyo

Cabe, Mc, W.L, Smith, J.C Harriot P. 1985. “Unit Operation of Chemical Engineering”. Singapore: Mc Graw Hill International Book Coulson and Richardson, 2005, “Chemical Engineering Design vol 6”, New York: Elsevier

Perry, RH and CHChilton. 1973. “Chemical Engineers' Handbook” 7th ed. New York: McGraw Hill Book Co

Geankoplis, Christie J. 1993. “Transport Process and Unit Operations”, 3rd ed. USA: Prentice hall. Himmeblau, DM, 1982, “Basic Principles and Calculation in Chemical Engineering”, 4th edition, Englewood Cliff: Prentice Hall.

Ulrich, GD 1984. “A Guide to Chemical Engineering Process Design and Economics”. New York: John Willey & Sons.




DOI: http://dx.doi.org/10.12962/j23378557.v8i2.a13903

Refbacks

  • There are currently no refbacks.


Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License. IPTEK The Journal of Engineering published by Pusat Publikasi Ilmiah, Institut Teknologi Sepuluh Nopember. 

 

Please contact us for order or further information at: email: iptek.joe[at]gmail.com Fax/Telp: 031 5992945. Editorial Office Address: Pusat Riset Building 6th floor, ITS Campus, Sukolilo, Surabaya 60111, Indonesia.