Chemistry and Technology of Fuels and Oils

, Volume 4, Issue 11, pp 802–806 | Cite as

Structure and properties of greases based on mixed lithium-calcium soaps

  • G. I. Svishevskaya
  • N. E. Shchipina
  • V. A. Prokopchuk
  • L. K. Bakun
Article
  • 27 Downloads

Conclusions

  1. 1.

    Stable greases based on lithium and calcium stearates can be obtained if these compounds are present in molar ratios of 19 ∶ 1 to 3 ∶ 1 in the thickener.

     
  2. 2.

    An increase in the Ca soap concentration within these limits has little effect on the thickening capacity of the combined soaps, the structure, and rheological properties of the greases.

     
  3. 3.

    The critical concentration of the Ca soap in the thickener corresponds to 35–40%; above this value the structure changes markedly and the rheological properties and colloidal and mechanical stabilities of the greases deteriorate.

     
  4. 4.

    Addition of Ca soaps to Li greases improves the water resistance and leads to a steady fall in the dropping point of the greases.

     

Keywords

Calcium Lithium Structure Change Rheological Property Stearate 

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Literature cited

  1. 1.
    D. S. Velikovskii, V. N. Poddubnyi, V. V. Vainshtok, and B. D. Gotovkin, Greases [in Russian], Izd-vo Khimiya (1966).Google Scholar
  2. 2.
    K. Boner, Manufacture and Use of Greases [Russian translation], Gostoptekhizdat (1958).Google Scholar
  3. 3.
    A. Morway, NZGI Spokesman,3, No. 12, 23 (1960).Google Scholar
  4. 4.
    R. Butcosk, USA Pat. 2,842,493; 2,842,494, July 8 (1958).Google Scholar
  5. 5.
    R. O'Halloran, Canad. Pat. 511,444, March 29 (1955).Google Scholar
  6. 6.
    A. Beerbower, R. O'Halloran, and H. Vesterdal, USA Pat. 29,299,781, March 22 (1960).Google Scholar
  7. 7.
    R. O'Halloran, H. Vesterdal, and A. Beerbower, USA Pat. 2,959,548, February 8 (1960).Google Scholar
  8. 8.
    V. V. Sinitsyn, Foreign Greases [in Russian], Gostoptekhizdat (1963).Google Scholar
  9. 9.
    J. W. Wilson, NLGL Spokesman,27, No. 12, 372 (1964).Google Scholar
  10. 10.
    F. Vamos, F. Guba, and A. Fehérvári, Magyar a'svanyolaf-es földgaz Kiserl int Kozl, No. 2, 151 (1961).Google Scholar
  11. 11.
    G. Guba and F. Vamos, Acta Chim. Hung.,25, 85 (1960).Google Scholar

Copyright information

© Consultants Bureau 1969

Authors and Affiliations

  • G. I. Svishevskaya
    • 1
  • N. E. Shchipina
    • 1
  • V. A. Prokopchuk
    • 1
  • L. K. Bakun
    • 1
  1. 1.Berdyansk NMZ, All-Union Scientific Research Institute for the Processing of Petroleum and Gas and for the Production of Synthetic Liquid FuelUSSR

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