Ionsiv F-80 and Ionsiv W-85: Molecular Sieve Zeolite NH4+ Ion Exchangers for Removal of Urea Nitrogen

  • John D. Sherman


New molecular sieve zeolite ion exchangers with high NH4 + exchange selectivities and capacities have been discovered and developed for use in a variety of applications. Preliminary tests show the LINDE IONSIV F-80 and IONSIV W-85 ion exchangers provide high NH4 + capacities in synthetic solutions similar in composition to blood serum or dialysate solutions.

The use of these new IONSIV NH4 + exchangers in conjunction with urease enzyme hydrolysis promises to provide significant improvements in urea removal for use in treatment of chronic renal disease.


Chronic Renal Disease Zirconium Phosphate Urease Enzyme Molecular Sieve Zeolite Urea Removal 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. (1).
    Maxwell, M.H., A. Lewin, and A. Gordon, “Sorbents in the Treatment of Chronic Renal Disease”, Kidney International 7, S-383-S-386 (1975).Google Scholar
  2. (2).
    Sherman, J.D., “Ion Exchange Separations with Molecular Sieve Zeolites”, Paper presented at the 83rd National Meeting, American Institute of Chemical Engineers, Houston, Texas (March 20–24, 1977).Google Scholar
  3. (3).
    Breck, D.W., “Zeolite Molecular Sieves: Structure, Chemistry, and Use”, Wiley-Interscience, New York (1974).Google Scholar
  4. (4).
    Breck, D.W., “Process for Removal of Ammonia from Waste Water Streams”, U.S. Patent 3,723,308 (March 27, 1973).Google Scholar
  5. (5).
    Sherman, J.D., and R.J. Ross, “Separations of Ammonium Ions from Aqueous Solutions”, Ger. Offen. 2,531,338 (Feb. 12, 1976).Google Scholar
  6. (6).
    Union Carbide Corp., Linde Div., “LINDE IONSIV F-80 Ion Exchanger”, Ion Exchange Bulletin F-4092, and “LINDE IONSIV W-85 Ion Exchanger”, Ion Exchange Bulletin F-4093 (1977).Google Scholar

Copyright information

© Plenum Press, New York 1978

Authors and Affiliations

  • John D. Sherman
    • 1
  1. 1.Molecular Sieve Department, Linde Division, Union Carbide Corp.Tarrytown Technical CenterTarrytownNew YorkUSA

Personalised recommendations