A review on approaches for hazardous organics removal from Bayer liquors

Y Zhang, R Xu, H Tang, L Wang, W Sun - Journal of hazardous materials, 2020 - Elsevier
Alumina is a valuable raw material for the production of adsorbents, abrasives, polishing
agents, refractory materials, and aluminum. It is generally produced from bauxites through …

Review on alumina trihydrate precipitation mechanisms and effect of Bayer impurities on hydrate particle growth rate

R Sonthalia, P Behara, T Kumaresan… - International Journal of …, 2013 - Elsevier
The Bayer process used for refining bauxite to smelting grade alumina serves as the
linchpin of the Aluminum production industry worldwide. Even though the process is well …

Stability of Pt/γ-Al2O3 Catalysts in Model Biomass Solutions

RM Ravenelle, JR Copeland, AH Van Pelt… - Topics in …, 2012 - Springer
The stability of a Pt/γ-Al 2 O 3 catalyst in liquid water and aqueous solutions of 5 wt%
glycerol or sorbitol at 225° C is examined using a variety of physicochemical methods. It is …

Molecular simulation study of the effect of various additives on salbutamol sulfate crystal habit

Y Yani, PS Chow, RBH Tan - Molecular pharmaceutics, 2011 - ACS Publications
The effects of polyvinylpyrrolidone (PVP), hydroxypropyl methyl cellulose (HPMC), and
lecithin additives on salbutamol sulfate (SS) crystal growth are studied using molecular …

Organic compounds in the processing of lateritic bauxites to alumina Part 2: Effects of organics in the Bayer process

G Power, JSC Loh, C Vernon - Hydrometallurgy, 2012 - Elsevier
This review is the second of a series examining the history and current state of knowledge of
the science related to organic compounds in the Bayer process for the extraction of alumina …

Growth of boehmite particles in the presence of xylitol: morphology oriented by the nest effect of hydrogen bonding

D Chiche, C Chizallet, O Durupthy… - Physical Chemistry …, 2009 - pubs.rsc.org
The ability to design nanoparticles size and shape through the addition of simple and
commercially available organic molecules is of particular interest in the catalytic domain …

Development of a versatile laboratory project for scale formation and control

S Muryanto, AP Bayuseno, W Sediono… - Education for Chemical …, 2012 - Elsevier
Development of a laboratory rig to provide graduate students with versatile equipment for
final year projects is discussed in this paper. The laboratory demonstrated scale formation …

Increasing precipitation rate from sodium aluminate solution by adding active seed and ammonia

G Liu, G Wu, W Chen, X Li, Z Peng, Q Zhou, T Qi - Hydrometallurgy, 2018 - Elsevier
Remarkably increasing precipitation rate of sodium aluminate solution was studied by
adding active seed and ammonia. The fine active gibbsite seed with irregular edge, large …

Intensification of precipitation of gibbsite from seeded caustic sodium aluminate liquor by seed activation and addition of crown ether

J Zeng, Z Yin, Q Chen - Hydrometallurgy, 2007 - Elsevier
New methods were explored to intensify the precipitation of gibbsite from seeded caustic
sodium aluminate liquor: gibbsite crystal seed was activated by boiling in distilled water and …

Preparation of a nano-sized α-Al2O3 powder from a supersaturated sodium aluminate solution

H Li, H Lu, S Wang, J Jia, H Sun, X Hu - Ceramics International, 2009 - Elsevier
Nano-sized α-Al2O3 particles with an average size of 30–40nm were prepared successfully
from supersaturated sodium aluminate solution with liquid-attached aluminum hydroxide …