The iridium waste and refining process is a key process for converting iridium-containing waste into pure iridium and involves a variety of technologies and methods. Here are some of the main refining methods:
1.Induction melting method: This method uses induction heating to melt the waste material and separate the iridium. However, this method is cumbersome, energy-intensive, and may cause environmental pollution.
2.Oxidative distillation: The separation of iridium through oxidation reaction and distillation process also has the problems of high energy consumption and environmental pollution.
3.Chemical precipitation: The use of chemical reactions to produce precipitate to extract iridium is relatively simple to operate, but it is often not possible to do it in a single step and requires further processing to complete**.
4.Extraction: The use of specific organic solvents to extract iridium from waste is a short-cycle method that also requires a secondary step.
5.Adsorption method: the use of adsorbents to adsorb iridium from solution, simple and short cycle, but also requires a second **.
6.Biological method: As an emerging technology, biological method uses microorganisms or biological materials to **iridium, which is a green and sustainable method, which is still in the research and development stage.
7.High-temperature furnace heating method: the waste is heated many times in the high-temperature furnace to remove other impurities and metals such as copper, iron, titanium, etc., which is suitable for the production of scrap produced by high-purity ruthenium-iridium alloy.
The refining and refining of iridium waste is a complex process that involves a variety of techniques and methods. With the development of technology and the improvement of environmental protection requirements, new methods such as biological methods are constantly being studied and explored. The choice and application of these methods depends on factors such as the specific composition of the waste, the purity required, and cost-effectiveness.