Characterization of Filtrate Cakes. Aluminum Hydroxycarbonate

Abstract Aluminum hydroxycarbonate gel suspensions have been filtered at constant pressure and the experimental data used to analyze and discuss the different procedures for obtaining design parameters such as specific resistance and compressibility of the cake, and resistivity of the filtration med...

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Bibliographic Details
Published in:Drug development and industrial pharmacy 1997, Vol.23 (2), p.183-191
Main Authors: López Campos, Raúl G., Villarreal Cárdenas, Luis A., Martínez, Ramiro Infante, María, L., Quintanilla, López, Peralta Rodríguez, René D., Valdés Silva, Isabel C., Wisniak, Jaime
Format: Article
Language:English
Subjects:
Biological and medical sciences
General pharmacology
Medical sciences
Pharmaceutical technology. Pharmaceutical industry
Pharmacology. Drug treatments
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Summary:Abstract Aluminum hydroxycarbonate gel suspensions have been filtered at constant pressure and the experimental data used to analyze and discuss the different procedures for obtaining design parameters such as specific resistance and compressibility of the cake, and resistivity of the filtration medium. It is shown that different algorithms yield different values for these parameters, and the possible pigalls in the analysis of the data are discussed. The compressibility data of the cake of aluminum hydroxycarbonate have been adjusted to the nonlinear model α = α0(-ΔP)s. The value of s obtained by different mathematical algorithms, 0.34, indicated that the cake is moderately compressible.
ISSN:0363-9045
1520-5762
DOI:10.3109/03639049709149792