Preparation of Ultrafine Al(OH)3 Powders from Scrap Aluminum

Jing Xu

doi:10.4028/www.scientific.net/KEM.544.13

Paper Titles

Preface

Synthesis of Dispersed Y₂O₃ Nanopowder from Yttrium Stearate
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Preparation and Characterization of Gd₂Zr₂O₇ Nanoparticles via the Citric Acid Chelating Agent Method
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Preparation of Ultrafine Al(OH)₃ Powders from Scrap Aluminum
p.13

Synthesis of LaFeO₃ Nano-Powders by Self-Propagating Combustion Method of Sol-Gel
p.17

Synthesis and Photo-Catalytic Properties Characterization of Graphene/TiO₂ Nanotube Composites
p.21

Preparation of the Ceramic Hollow Balls of Aluminium Titanate-Based by Rolling-Ball Method
p.25

Preparation of Porous Silicon by Magnesiothermic Reduction from Serpentine
p.29

Effect of Ball Milling on the Properties of Zirconia Powder Prepared by Alcohol-Aqueous Coprecipitation Method
p.34

HomeKey Engineering MaterialsKey Engineering Materials Vol. 544Preparation of Ultrafine Al(OH)3 Powders from...

Preparation of Ultrafine Al(OH)₃ Powders from Scrap Aluminum

Abstract:

The homogeneous precipitation pathway was explored to synthesize ultrafine powders of Al(OH)₃. In the experiment, the scrap aluminum were used as raw material . The effects of reaction time, reaction temperature, stirring speed, concentration of sulphuric acid and dispersant on the preparation process were investigated. The results showed that ultrafine Al(OH)₃ powders can be yielded and well-controlled under the following optimal conditions: the concentration of sulphuric acid 3.0 mol•L^-1, reaction temperature 0-4 °C, stirring speed 900 r.min^-1 and reaction time 15 min. The diameter less than 100nm of sphericity Al(OH)₃ particles with the narrow distribution were successfully obtained. The Al(OH)₃ powders was analyzed with scanning electron microscopy , infrared spectrometer. The Al(OH)₃ powders have good dispersancy and purity is more than 90%. The operation of the experiment was very simple, and the particles were separated easily.

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Periodical:

Key Engineering Materials (Volume 544)

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13-16

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.544.13

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Online since:

March 2013

Authors:

Jing Xu

Keywords:

Dispersancy, Homogeneous Precipitation, Scrap Aluminum, Ultra-Fine Al(OH)₃ Powders

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