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Thermal Behavior of Chemical Fertilizers

  • C. Giavarini

Abstract

The fertilizers industry is one of the major industries of the world, with a total output in 1970 of a-bout 200 million tons of products and a growth rate of about 8,5% per year (1). Among the main directions of research to be taken into consideration in this field are a) the study of the thermal behavior of fertilizers and b) the research of a method for a sufficiently rapid and simple characterization of such products (2):
  1. a)

    thermal reactions may occur, after manufacture or mixing, during drying, storage and handling (3,4,5);

     
  2. b)

    the rapid determination of the chemical compound a-ctually present at the various stages of production and in the finished products allows to act promptly in directing the process underway in the desired sense

     

Keywords

Chemical Fertilizer Ammonium Nitrate European Economic Community Dicalcium Phosphate Ammonium Phosphate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    United Nations: “Recent developments in the fertilizer industry”, Report of the Second Interregional Fertilizer Symposium held at Kiev and New Delhi, 21 sempt. to 13 oct. 1971. New York 1972.Google Scholar
  2. 2.
    G. Scaramelli: “Present aspects and presumable developments in the technology of complex fertilizers”, in G. Fauser: “Chemical Fertilizers”, Pergamon Press-Tamburini Publ., New York-Milano, 133–160, 1968.Google Scholar
  3. 3.
    V. Sauchelli: “Chemistry and technology of fertilizers”, Reinhold Publ., New York, 1960.Google Scholar
  4. 4.
    K.S. Barclay, J.M. Crewe, J.B. Dawson, K.P.J. Thatcher: “The cause of self-heating of NEK compound fertilizers containing nitrates”. J. Appl. Chem. 15, 531–540, 1965.CrossRefGoogle Scholar
  5. 5.
    K.S. Barclay: “Physical-chemical studies on decomposition reactions and the safe handling of ammonium nitrate-bearing fertilizers”, in G. Pauser:“Chemical Fertilizers”, 31–48, 1968.Google Scholar
  6. 6.
    W.A. Mitchell: “An investigation into the caking of granular fertilizers”, J. Sci. Pood Agriculture, 9, 455–456, 1954.CrossRefGoogle Scholar
  7. 7.
    Commission des Communautés Européennes: “Méthodes pour l’analyse des engrais”, 10.388/III 67-F. Rev. I 10 dec. 1968, Add.I 3 dec. 1969, Add.II 3 march 1970, Add.III 16 apr. 1970.Google Scholar
  8. 8.
    Assoc. Official Agr. Chemists: “Official Methods of Analysis“. 8th. Ed. Washington, 195, 1955.Google Scholar
  9. 9.
    M. Sekiya, Y. Sugiyama, S. Okamoto: “Effects of some inorganic salts on the dehydration of calcium sulfate dihydrate”. Gypsum and lime, 61, 263–271, 1962.Google Scholar
  10. 10.
    V.L. Hill, S.B. Hendricks, E.J. Pox, J.G. Cady: “Acid pyro- and metaphosphates produced by thermal decomposition of monocalcium phosphate”, Ind. Eng. Cham., 39, 12, 1667–1672, 1947.CrossRefGoogle Scholar
  11. 11.
    C. Giavarini, P. Pochetti: “Applicazione di tecniche termoanalitiche allo studio dei superfosfati normali”, Annali di Chimica, 61, 682–694, 1971.Google Scholar
  12. 12.
    I.S.M.A. (Intern. Super. Manuf. Ass.): Report LP/ 65/69 (Annex I), 1965.Google Scholar
  13. 13.
    P. Pascal: “Nouveau traité de chimie minérale”, Tome X, 209, Masson ed., 1956.Google Scholar

Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • C. Giavarini
    • 1
  1. 1.Institute of Applied and Industrial ChemistryUniversity of RomeItaly

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