Fabrication of Ferrous Sulfate from Waste Like Condensed Milk Containing Can and its Characterization

  • Juliya Khanam Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka -1205, Bangladesh
  • Lutfor Rahman Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka -1205, Bangladesh
  • Bristy Biswas Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka -1205, Bangladesh
  • Salina Rahman Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka -1205, Bangladesh
  • Nahid Sharmin Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka -1205, Bangladesh
  • Samina Ahmed Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka -1205, Bangladesh
  • Tahuran Neger Institute of Glass and Ceramic Research and Testing (IGCRT), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka -1205, Bangladesh
Keywords: Acid leaching, DSC/TGA, Ferrous sulfate, Waste iron, XRD.

Abstract

Ferrous sulfate is usually produced from the spent pickling liquor when the metal sheets are pickled in the processing of steel. In the present work ferrous sulfate was prepared by simple acid leaching method by using waste condensed milk can as a raw material. This can contains around 87 percent of iron which was successfully converted to greenish crystals of ferrous sulfate by simple acid leaching followed by crystallization. The process parameters like concentration of acid, molar ratio of iron to acid, period of reaction,effect of temperature and effect of occasional stirringwere optimized. Nearly 98% iron was leached out from iron containing can and converted to ferrous sulfate. The product was characterized by chemical analysis, thermo gravimetric analysis and X-ray diffraction analysis. On chemical analysis it was found that the produced product is highly pure, nearly 97 percent. According to the DSC/TGA studies, it is found that the prepared sample is hexahydrate. From X-ray diffraction pattern, it was confirmed that the prepared sample is ferrous sulfate with melanterite phase and have monoclinic crystal structure. Ferrous sulfate is usually produced from the spent pickling liquor when the metal sheets are pickled in the processing of steel. In the present work ferrous sulfate was prepared by simple acid leaching method by using waste condensed milk can as a raw material. This can contains around 87 percent of iron which was successfully converted to greenish crystals of ferrous sulfate by simple acid leaching followed by crystallization. The process parameters like concentration of acid, molar ratio of iron to acid, period of reaction,effect of temperature and effect of occasional stirringwere optimized. Nearly 98% iron was leached out from iron containing can and converted to ferrous sulfate. The product was characterized by chemical analysis, thermo gravimetric analysis and X-ray diffraction analysis. On chemical analysis it was found that the produced product is highly pure, nearly 97 percent. According to the DSC/TGA studies, it is found that the prepared sample is hexahydrate. From X-ray diffraction pattern, it was confirmed that the prepared sample is ferrous sulfate with melanterite phase and have monoclinic crystal structure.

References

[1] Alexander Kehrmann. “Method of producing ferrous sulfate heptahydrate.”U.S. Patent 7.097,816B2, August 29, 2006
[2] Mattila; Harri (Ulvila, FI), Kenakkala; Timo (Rydeback, SE), Konstari; Olli (Pori, FI), “Process for preparing ferric sulfate.” U.S .Patent 5,766,566, June 16, 1998
[3] https://en.wikipedia.org/wiki/Iron (II) _sulfate

[4] Mattia, Francis Joseph (Brooklyn, NY) ,Sakler, Stephen Alle (Bronx, NY) “Process for producing ferrous sulfate.” U.S. patent 3760069, September 18,1973
[5] Pedro Jorge Walburga Keglevich de Buzin , Eunice Maria Vigânico , Rodrigo de Almeida Silva , Nestor Cezar Heck, Ivo André Homrich Schneider and Jean Carlo Salomé dos Santos Menezes, 2014. “Prodution of Ferrous Sulfate From Steelmaking Mill Scale.”
[6] Lide, David R., ed.(2009)CRC Handbook of Chemistry and physics (90th ed.), Florida: CRC press
[7] http:www.chemicalbook.com/chemical Product property_EN_CB9232125.htm
[8]
Indian standard specification for ferrous sulfate , heptahydrate (2nd revision) , IS 262-1982
[9] B.S Bahll, G.D Tuli, Arun Bahl. “Essentials of Physical chemistry”
[10] F.C. Huber; E.Emmet Reid, “Influence of rate of stirring on reaction velocity.”Ind.Eng.Chem., 1926,18(5),pp535-538,May,1926.
[11] Tong Wang, Kenneth a.Debelak, John A. Roth, 2007. “Dehydration of iron (II) sulfate heptahydrate”
[12] Hanawalt, J.D., H.W. Rinn, L.K. Frevel ,1938. “Chemical analysis by X-ray diffraction.” Ind.Eng. Chem., Anal.Ed.10, 457-512
Published
2018-04-25
Section
Articles