Method and equipment for rectifying and purifying iodine pentafluoride
A technology of iodine pentafluoride and rectification, which is applied in the direction of interhalogen compounds, etc., can solve the problems of inability to separate hydrogen fluoride, high viscosity, blockage of valves and pipelines, etc.
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[0059] The equipment and method of the present invention are used to separate the crude product with a mass fraction of iodine pentafluoride of 98%. The rectification device has a tower diameter of φ20mm, a built-in tray with 20 trays, and the feeding position is the tower kettle. Control the temperature at the bottom of the tower to 130°C, the temperature at the top of the tower to 115°C, and the reflux ratio to 5. Among them, the gas phase product from the gas phase extraction outlet at the top of the tower is cooled to a liquid phase product (colorless), with a content of 99.8%, and a metal ion content of 40ppm (total).
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