TY - CHAP
T1 - Surface behavior of iron sulfide ore during grinding with alumina media
AU - Martín Reyes, P.
AU - Elia Palãcios, B.
AU - Francisco Patiño, C.
AU - Ramiro Escudero, G.
AU - Mizraim Uriel Flores, G.
AU - Reyes D., Iván A.
AU - Palazuelos, Laura Angeles
N1 - Publisher Copyright:
© 2016 by The Minerals, Metals & Materials Society.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - This research was conducted to study the oxidation and surface modification of pyrite in an inert mill and alumina grinding media at different pH values. The extent and progress of the oxidation function of milling time, by measuring some physicochemical variables, zeta potential (ZP), infrared analysis and monitoring. The results indicate pyrite oxidation during grinding, releasing iron and sulfur ions to the solution increasing its concentration with the initial pH and the milling time, the ORP and DO decrease the grinding time, on the other hand presents negative values ZP pH of 9, 11 and 12, whereas at pH 5, 7 and 13, the ZP is positive, FTIR generally detect the presence of free sulfate ion molecule 1084 cm-1, goethite with the absorption band at about 794 cm-1, also occurs in a band assigned to 470 cm-1 lepidocrocite oxy iron hydroxide γ- FeOOH, nucleated species or formed during milling.
AB - This research was conducted to study the oxidation and surface modification of pyrite in an inert mill and alumina grinding media at different pH values. The extent and progress of the oxidation function of milling time, by measuring some physicochemical variables, zeta potential (ZP), infrared analysis and monitoring. The results indicate pyrite oxidation during grinding, releasing iron and sulfur ions to the solution increasing its concentration with the initial pH and the milling time, the ORP and DO decrease the grinding time, on the other hand presents negative values ZP pH of 9, 11 and 12, whereas at pH 5, 7 and 13, the ZP is positive, FTIR generally detect the presence of free sulfate ion molecule 1084 cm-1, goethite with the absorption band at about 794 cm-1, also occurs in a band assigned to 470 cm-1 lepidocrocite oxy iron hydroxide γ- FeOOH, nucleated species or formed during milling.
KW - Alumina
KW - Grinding
KW - Oxidation
KW - Pyrite
KW - Surface
UR - http://www.scopus.com/inward/record.url?scp=85015152026&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-48210-1_96
DO - 10.1007/978-3-319-48210-1_96
M3 - Capítulo
SN - 9781119264392
SP - 761
EP - 769
BT - Characterization of Minerals, Metals, and Materials 2016
PB - Springer International Publishing
ER -