Mineral Processing and Extractive Metallurgy, Vol. 131, No. 2, ready to read
This issue looks at classification and regression models in copper refineries, alternatives for grinding circuits, and the relation between particle size and transformation temperature of gibbsite to αLPHA-alumina.

This issue contains the following articles, which are available to members via My IOM3.
Investigation of classification alternatives for grinding circuits
Ozgur Ozcan
Pages: 87-98
DOI: 10.1080/25726641.2020.1793048
Effect of the CaO/SiO2 ratio on the controlled solidification of ‘Fe2O3’-CaO-SiO2 melts in air
S. Nicol, E. Jak & P. C. Hayes
Pages: 99-110
DOI: 10.1080/25726641.2020.1815269
The relation between particle size and transformation temperature of gibbsite to αLPHA-alumina
Mohsen Nasiri Ahmadabadi, Ali Nemati, Kaveh Arzani & Saeid Baghshahi
Pages: 111-121
DOI: 10.1080/25726641.2020.1815504
Variable importance assessments of an innovative industrial-scale magnetic separator for processing of iron ore tailings
A. Tohry, M. Jafari, M. Farahani, M. Manthouri & S. Chehreh Chelgani
Pages: 122-129
DOI: 10.1080/25726641.2020.1827674
Thermodynamic modelling of spodumene decrepitation
C. A. Pickles & O. Marzoughi
Pages: 130-144
DOI: 10.1080/25726641.2020.1827675
Potassium-bearing species in fertiliser obtained by hydrothermal modification of glauconitic siltstones with calcium hydroxide
Rodrigo A. O. Peixoto, Kátia D. Oliveira & Cícero N. Ávila-Neto
Pages: 145-157
DOI: 10.1080/25726641.2020.1843383
An approach to measuring and modelling the residence time distribution of cement clinker in vertical roller mills
Kianoush Barani, M. R. Azadi & Rasoul Fatahi
Pages: 158-165
DOI: 10.1080/25726641.2021.1898266
A systematic study on extraction and separation of scandium using phosphinic acid by both solvent extraction and hollow fibre membrane
P. C. Rout & K. Sarangi
Pages: 166-176
DOI: 10.1080/25726641.2021.1908079
Geometallurgical characterisation of a Channel Iron Deposit (CID) Ore
Huibin Li, D. J. Pinson, P. Zulli, L. Lu, R. J. Longbottom, S. J.
Chew, B. J. Monaghan & G. Zhang
Pages: 177-186
DOI: 10.1080/25726641.2021.1908105
Classification and regression models in Copper refinery
L. A. Perez
Pages: 187-193
DOI: 10.1080/25726641.2021.1908080