Product description:
Indium vacuum distillation furnace, which is a metal distillation furnace, is used to refine metal Indium. This vacuum distillation furnace vaporize the impurity like lead, zinc, thallium to refine the metal Indium through taking advantage of the different boiling points of those impurities.
The graphite crucible and the metal inside the crucible are heated employing induction heating principle.The hearth temperature gradually reaches to 1000℃ and keep the temperature for 4~5 hours.
In, Zn, Cd, Tl and Pb will vaporize at different temperature and turn into the solid state, while most In metal keeps as liquid state; in this way, the Impurities like Zn and Cd are separated from the In metal.
Technical index for distillation furnace
S/N |
Item |
Index |
Remarks |
1 |
Handle capacity |
300 kg/batch |
|
2 |
Handling method |
Discontinuous distillation |
|
3 |
Operation cycle |
8~12 hours/batch |
|
4 |
Heating method |
Middle frequency induction heating |
|
5 |
Power supply |
120kW |
|
6 |
Distilling temperature |
650~800 ℃ for removing Zn & Cd, 950~1050 ℃ for removing Tl & Pb. Design max distilling temperature: 1600℃. |
|
7 |
Crucible |
Enclosed distillation crucible |
|
8 |
Crucible Material |
Graphite |
|
9 |
Lifetime |
≥ 1 year |
|
10 |
Condensation method |
Vacuum radiative transfer, furnace casing water cooling. |
|
11 |
Output material chemical composition |
||
In content |
After refining distillation, In≥99.1% |
||
Impurities like Zn, Tl, Pb |
The Inpurities like Tl, Pb, Sb can be partly or totally removed through controlling distillation temperature and reflux ratio. |
||
12 |
Refining rate (In) |
After removing Zn & Cd, In >98%. |
|
13 |
Vacuum degree |
Vacuum degree inside furnace body:0~100 Pa |
|
14 |
Vacuum pump |
rotary-vane vacuum pump (Power=3kW) |
|
15 |
Staffs/ shift |
2 persons/ shift |
|
16 |
Circulating water |
20t/h (Water consumption: 1t/24h) |
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