Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1986-07-18
1988-06-28
Spear, Frank
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
210637, 210651, 21032169, B01D 1300
Patent
active
047537337
ABSTRACT:
Plasmapheresis by filtration can be carried out with high efficiency for long periods by conducting blood over a surface of a membrane and passing plasma at an accelerating rate until the threshold level is attained, maintaining the rate of passing plasma until the ceiling system transmembrane pressure difference is attained and then reducing the passing of plasma and the system transmembrane pressure difference and allowing the membrane to clear before repeating the cycle.
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patent: 4191182 (1980-03-01), Popovich et al.
patent: 4212743 (1980-07-01), Van Meter et al.
Castino, F. et al., "The Filtration . . . ", in Art. Kid., Art. Liver and Art. Cells, edit. by T. M. S. Chang, Plenum Press, N.Y. (1978).
Asanuma, Y. et al, "Membrane Plasmapheresis . . . ", Proc. Eur. Soc. Artif. Intern. Organs, 6, 308-312, 1979.
Werynski, A. et al, "Membrane Plasma Separation . . . ", T.A.S.A. Intern. Organs, vol. 27, pp. 539-543, May 6-8, 1981.
E. I. Du Pont de Nemours and Company
Spear Frank
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