Fusion is used to prepare a wide range of samples for analysis by x-ray fluorescence, atomic absorption, inductively coupled plasma-atomic emission spectrometry and a variety of classical chemical techniques.
Many of the ores and concentrates in the mining and metallurgy industry comprise of sample types that include oxides, sulphides and aluminosilicates.
Samples are usually mixed with
borate fluxes and dissolved or fused in
crucibles at temperatures between 900°C to 1250°C.
The typical lithium borate fusion temperature is 1050°C.
The molten glass is then poured into the mould (casting dish) for XRF analysis.
Precise control of cooling is essential to produce flat glass discs and to avoid cracking or crystallisation.
Phoenix automated fluxers are designed to consistently produce fused beads under accurately reproducible fusion conditions for x-ray fluorescence (XRF), ICP and AA.
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Phoenix |
This fluxer can operate 24 hours per day and can produce up to 550 beads per day.
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Pre-melt |
Main Fusion |
Glass Disk |
Phoenix fluxers use separate burners to heat the crucibles and the moulds for accurate, reproducable conditions.
After pouring, the moulds are retracted over separate air jets for precise cooling processes.
click on photo
to enlarge |
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Model |
No. of Burners
(Crucible & Mould) |
Beads per Cycle |
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2000/VFD |
4 |
2 |
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3000/VFD |
6 |
3 |
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4000/VFD |
8 |
4 |
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5000/VFD |
10 |
5 |
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6000/VFD |
12 |
6 | |
Phoenix VFD Series
This new series has the enhanced capability of clear and precise time setting using touch button control.
No special programming techniques are required. The straightforward instructions prompt the operator as required.
Recipe storage without the need for a separate control panel or module, allows for storage of up to 80 different types of sample preparations.
Each program can be readily loaded with the touch of a button.
Advantages
Oxygen enriched flames
- Oxidizing flames, no problem with reducing gases,
- Ability to heat heavy duty moulds,
- Accurate control of crucible and mould temperatures,
- Can fuse any type of sample - including sulfides,
- Achieve high temperatures, even in high altitudes.
Separate burners to heat the Moulds
- Precise (and separate) control of crucible and mould temperature,
- Heavy duty moulds can be used (> 100gms), reduced curvature, better durability,
- The crucible will pour into the mould in precisely the same position each time,
- The moulds retract outside the fusion area to set over separate air jets to accurately control the cooling process (this can be critical).
Swirling Motion
- A homogeneous mix is produced,
- The swirl speed is variable enabling samples of different viscosity to wash the sides of the crucible,
- Uses a simple autolocking crucible holder, which eliminates cross contamination.
Options
- Oxygen Injector
- Loss on Ignition
- Pre-melt
- Bi-level cooling
- Melt Loss
- Fully automatic Ammonium Iodide Injection
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Power |
Voltage |
110 or 240VAC 50/60 Hz |
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Wattage |
720 Watts |
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Gas |
Propane (LPG) |
15 to 100 kPa |
(2 to 14.5 psi) |
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Natural |
8 to 12 kPa |
(1.2 to 1.8 psi) |
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Air Supply |
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400 kPa minimum |
(58 psi) |
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Oxygen |
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400 kPa minimum |
(58 psi) |
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Dimensions |
Height |
310 mm |
(12 in.) |
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Width |
880 mm |
(34.5 in.) |
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Depth |
630 mm |
(24.8 in.) | |
March