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A soft sensor for the Bayer process [PDF]

Journal of Mathematics in Industry, 2017
A soft sensor for measuring product quality in the Bayer process has been developed. The soft sensor uses a combination of historical process data recorded from online sensors and laboratory measurements to predict a key quality indicator, namely ...
Vincent Cregan, William T Lee, Louise Clune   +2 more
doaj   +5 more sources

Predictive Modeling of Drug Product Stability in Pharmaceutical Blister Packs [PDF]

Pharmaceutics
Background/Objectives: The principal function of pharmaceutical blister packaging is to provide protection for the drug product. Moisture is regarded as a critical factor in the physical and chemical aging of drug products.
Jan Pech, Christoph Kaminski, Matthias Markus, Werner Hoheisel, Roman Heumann, Judith Winck, Markus Thommes   +6 more
doaj   +2 more sources

Global Competence Management for Process & Plant Safety at Bayer

Chemical Engineering Transactions, 2016
Excellence in the field of process and plant safety (PPS) is indispensable and a consistently high level of safety has to be achieved in all processes and facilities within the Bayer Group worldwide.
Hans-Erich Gasche, B. Buhn Jörn, Jürgen Kussi, Jan Weppelmann   +3 more
doaj   +2 more sources

Development of A Low-Cost Method for Determination of Sulfide Ions in Aluminate Solution of Bayer Process and Sulfide Removal Using Nitrate from It [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2023
Sulfide ions in the solution of the Bayer process can accelerate the corrosion of the equipment and increase the impurity of the final product. In the current investigation, sulfide ions concentration of the aluminate solution during the Bayer process ...
Mohammad Reza Ramazani, Mohammad Saber Tehrani, Mohammad Hadi Givianrad, Parviz Abroomand Azar   +3 more
doaj   +1 more source

Parametric Study of Residence Time Distributions and Granulation Kinetics as a Basis for Process Modeling of Twin-Screw Wet Granulation

Pharmaceutics, 2021
Twin-screw wet granulation is a crucial unit operation in shifting from pharmaceutical batch to continuous processes, but granulation kinetics as well as residence times are yet poorly understood.
Timo Plath, Carolin Korte, Rakulan Sivanesapillai, Thomas Weinhart   +3 more
doaj   +1 more source

Lanthanides as impurities in the Bayer production cycle of the aluminum hydroxide from Sierra Leone bauxite

Romanian Journal of Ecology & Environmental Chemistry, 2022
This paper is describing a careful study on content and distribution of rare elements in the fluid and solid phases involved in dry and classified aluminum hydroxide production through Bayer process at Alum SA, Tulcea, Romania.
Lidia Kim, Gheorghe Dobra, Raluca Isopescu, Sorin Iliev, Lucian Cotet, Alina Boiangiu, Gina Alina Catrina, Laurentiu Filipescu   +7 more
doaj   +1 more source

MACROMOLECULES IN THE BAYER PROCESS [PDF]

Reviews in Chemical Engineering, 2003
This is the publisher's version, also available electronically from http://www.degruyter.com/view/j/revce.2003.19.5/revce.2003.19.5.431/revce.2003.19.5.431.xml.
Whelan, Thelma J., Ellis, Amanda, Kannangara, G. S. Kamali, Marshall, Craig P., Smeulders, Damian, Wilson, Michael A.   +5 more
openaire   +2 more sources

Radiological assessment of the Bayer process [PDF]

Minerals Engineering, 2019
Abstract Naturally occurring radionuclides were studied through the Bayer process by calculating their mass flows. Aluminium of Greece (AoG) provided sample materials and plant data from several process stages. Measurements of radionuclide concentrations were carried out by gamma-ray spectroscopy. The performed measurements show that in the specific
Goronovski, Andrei, Vind, Johannes, Vassiliadou, Vicky, Panias, Dimitrios, Tkaczyk, Alan Henry   +4 more
openaire   +2 more sources

EFFECT OF METAL ADDITIVES IN HYDROCHEMICAL PROCESSING OF DIASPORE-BEMITE BAUXITE ON PHYSICOCHEMICAL PROPERTIES OF REDUCED MUDS

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2020
The work is devoted to study of the high-temperature hydrochemical decomposition of mineral complexes of diaspore-bemite bauxites by the Bayer method with the extraction of macro-components-aluminum and iron in the presence of metal reducing agents.
S.A. Bibanaeva, L.A. Pasechnik, V.M. Skachkov, V.T. Surikov, S.P. Yatsenko   +4 more
doaj   +1 more source

Highly efficient separation of titanium minerals from a modified bauxite residue through direct reduction: A comparison study

Journal of Materials Research and Technology, 2023
Bauxite residue, which is a solid waste generated during the production of alumina, contains significant amounts of iron (Fe) and titanium (Ti) resources.
Yuguan Zhang, Yilin Wang, Lingyun Yi, Tiangui Qi, Qiusheng Zhou, Zhihong Peng, Guihua Liu, Xiaobin Li   +7 more
doaj   +1 more source