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artificial cryolite

product details

 molecular formula: na3aif6 also as 3naf·alf3

it is mainly used as the flux in the aluminium electrolyzing a flux in reducing the melting point of alumina during the electrolytic process of primary aluminium smelting with the following features:

1.      adjustable molecular ratio. the low-molecular ratio cryolite (ratio: 1.3-1.8) can replace aif3 partly or completely with high yield in the aluminium electrolyzing. the mid-molecular ratio cryolite (ratio 1.8-2.5) can increase the electrolyte level. the high-molecular ratio cryolite (ratio 2.5-3.0) quickly starts up aluminium electrolyzing bath and turn to normal operation.

2.      lower cost. it can economies the power and reduce the cost in aluminum electrolyzing. it has a strong competitive ability.

3.      good fluidity. suitable for automatically feeding in the aluminium smelters and promoting the technology reformation and progress.

4.      high contents of f, al, less contents of residues like sio2、 fe2o3 、so42-、 p2o5.

5.      low free-water and loss of ignition.

--chemical properties

item

chemical composition  (%)

na3alf6

f

al

na

sio2

fe2o3

so3

cao

p2o5

h2o

loss on ignition (550℃,30min)

naf/alf3 by weight

 

1st grade

97%

53

12.5

33.0

0.35

0.08

0.50

0.4

0.02

0.30

1.0

1.25-1.55

2nd grade

96%

53

12.0

33.0

0.40

0.10

0.60

0.5

0.03

0.40

2.0

1.25-1.55

--physical properties  

density                  2.95-3.05g/cm3

bulk density            1.0-1.55 g/l

colour              white, shaded white or pink

--packing

 pp.bag with pe shrink lining. the capacity will be 25kg、50kg、1000kg or according to the requirement.

 

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email: [email protected]
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