TY  - JOUR
T1  - Physical and Electrochemical Parameters Study in Kaolin’s Processing
AU - Osawaldo Bustamante, M. AU - M. Muñoz, Andres AU - F. Duque, Luis AU - E. Espitia, Martin AU - Hurtado-Morales, Mikel 
JO  - Journal of Engineering and Applied Sciences
VL  - 15
IS  - 12
SP  - 2536
EP  - 2541
PY  - 2020
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2020.2536.2541
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2020.2536.2541
KW  - Kaolin
KW  -bleaching
KW  -electrochemical potential
KW  -potentiometric
KW  -galvanic measures
AB  - In this research, a characterization of the
chemical bleaching process of Colombian kaolin by
potentiometric an galvanometric measures is shown.
Three samples from La Unión, Antioquia (Colombia),
were tested in laboratory taking into account the effect of
the amount of reducing agent (Na<sub>2</sub>SO<sub>4</sub>) and the resident
times. Phenomena description such as the variation in
electrochemical potential, iron concentration in solution
and the whiteness index evolution, contributes to the
phenomenological analysis of kaolin processing. These
results are important for future research works appointing
to efficiency of Colombian kaolin blenching that make
possible a reduction in precipitated iron species in mineral
surfaces.
ER  -