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Aug-25-22

Zircon Sand

$4.00K
MOQ: Not Specified
 
Zircon sand is generally found in land of ancient coastlines,some of which can be found very far inland,where the heavier mineral sands formed hardened deposits.These deposits are typically mined via dry or wet(dredge)mining techniques.
Typical chemical analysis:
ZrO2+HfO2:65.5-66.5%
Fe2O3:0.04-0.07%
TIO2:0.15-0.19%
Al2O3:0.40-0.90%
P2O5:0.06-0.09%
SiO2(Total):32.2-33.2%
Free SiO2:0.25-0.45%
Physical Properties
Refractive Index:1.93-2.01
Specific Gravity:4.6-4.71g/cm3
Mohs Hardness:7.5+
Melting Point:2340-2550
Packing:30/40kgs pvc bags+1mt big bag
Main Applications
Foundry Ceramic Chemical Glass Refractory abrasive washing/Cleaning/Blasting and nuclear industry etc
Available Sizes:60-100mesh  80-120mesh  100-200mesh 200-325mesh 200mesh 325mesh 2000mesh
Aug-27-19
 
South Africa chromite sand casting
South Africa chromite sand casting , Originally from South Africa ,is a special kind of sand for casting , chromite sand casting is a natural spinel mainly composed of chromite , Chromite sand casting used as a highly fireproof sharpener for moulds and cores.

Purpose
1 foundry industry
Its properties enable the material to be used in high duty grey iron and steel foundries as core and mould making sand.
2 steel industry
In steel production, Chromite Sand Casting is used as well filler for protection of the sliding gate in large steel holding ladles.
3 glass industry
When ground to a fine flour, Chromite Sand casting is used for the production of green glass beverage containers
Mar-17-20
 
South africa chrome ore lumpy is a highly fireproof sharpener for moulds and cores. Originally from South Africa. The sand is produced by crushing chrome ore and its washing in spiral concentrators, subsequent drying, dust cleaning, screening and sorting as per grain size.

Chemical composition
Cr2O3 46.0%min
SiO2 1.0%max
FeO 26.5%max
CaO 0.3%max
MgO 10.0%max
Al2O3 15.5%max
P 0.003%max
S 0.003%max
Cr/Fe 1.55/1

Physical composition
Bulk Density 2.5-3g/cm3
Specific Gravity 4.0-4.8g/cm3
PH Value 7-9
The amount of the acid 2ML max
Percent soil 0.1%max
The sintered 1600
Filling Density 2.6g/cm3
melting temperature 2180°C

Available size
AFS30-35 AFS35-40 AFS40-45 AFS45-50 AFS50-55 AFS55-60 AFS60-65
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