download pdf

Hydrated Alumina
A
KB30
Hydrate
ALCOA WORLD A LUMINA –
A USTRALIA
A/004-R05/0201 page 1 of 1
An easy to dissolve hydrated alumina for alumina chemicals production
Product Information
Product Description
KB 30 is a fine sized near white
hydrated alumina designed for
applications where an easy
dissolvi ng and clear solution is
desired.
The fine sizing helps make the hydrate easy
to dissolve and speeds up reaction times.
KB30 Hydrate is a hydrated alumina
precipitated in a dedicated process circuit.
Process chemistry is controlled to give a fine
product with low impurities and organics.
Applications
KB30 is used for the production
of aluminium chemicals, most
commonly:
• alum
• sodium aluminate
•?poly aluminium chloride
• zeolites
Typical Properties of KB30 Hydrated Alumina
Chemical Analyses, wt %
Al2 O3
Al(OH) 3
Na2 O
SiO2
Fe2 O3
CaO
Soluble Na2 O
Particle Size (cumulative)
(1)
Shipping Limits Typical Range
64.7 min
65.1 - 65.2
99.0 min
99.5 - 99.7
0.40 max
0.22 - 0.32
0.010 max
<0.004
0.012 max
0.005 - 0.008
0.050 max
0.020 - 0.031
0.03 max
<0.010
(2)
% on 100 mesh (150µm)
% on 325 mesh (45µm)
1 max
65 min
<0.2
>75
Brightness (Z%)
85 min
88 - 93
1) Approximately 2 standard deviations around the mean.
2) Electroform Screens
Information presented herein is believed to be accurate
and reliable but is not intended to meet any specification
and does not imply any guarantee or warranty by Alcoa.
Alcoa World Alumina – Australia
Cnr Davy and Marmion Streets, Booragoon, Western Australia 6154, Australia
Postal Address: P.O. Box 252, Applecross W.A. 6153, Australia
Phone:+61 8 9316 5111, Fax: +61 8 9316 5228
Similar pages