Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1985-03-14
1987-03-17
Cintins, Ivars
Liquid purification or separation
Processes
Ion exchange or selective sorption
210917, 210927, B01D 1500
Patent
active
046505890
ABSTRACT:
Blood products and other substances colored by tetrapyrrole compounds such as porphyrins or metalloporphyrins, in an aqueous solution, are decolored by contacting the aqueous solution with an adsorbent selected from among alumina, magnesia, and magnesium silicate, and the resulting colorless solution is then collected. The solution to be decolored can be adjusted to a pH of 2 to 6, and can be at a temperature in the range of 0.degree. to 60.degree. C., but is usually decolored at ambient temperature.
REFERENCES:
patent: 3998732 (1976-12-01), Solbach et al.
patent: 4216084 (1980-08-01), Ikari et al.
patent: 4411794 (1983-10-01), Schwinn et al.
Charet Pierre
Guillochon Didier
Piot Jean-Marie
Thomas Daniel
Centre National de la Recherche Scientifique "CNRS"
Cintins Ivars
Universite des Sciences et Techniques (Lille I)
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