Оборудование для лабораторных испытаний огнеупорных материалов Глобальный универсальный поставщик

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What is a cupellation furnace

Cupellation Furnaces — Cupellation furnaces are extremely essential instruments that aid in steel smelting. They are an integral part of the process of extracting and separating valuable metals such as gold and silver from the rest of the material. The separation of the metals is known as cupellation. A Купеляционная печь для анализа на огнестойкость is needed to make this process work correctly, and this furnace is ideal for work in this area. 

A key thing to realise about cupellation furnaces is they become quite hot. The inside of a furnace can get to 1200 degrees Celsius. To give some perspective on how hot that is, it is hotter than most volcanic lava. Such high temperatures are needed as they assist in the melting of the metals. Once the metals are melted, it is easier to separate them out from everything else. 


The process of separating precious metals

One more key fact — cupellation furnaces use a process of oxidization to assist in the separation of the precious metals. Oxidization is a chemical reaction that occurs when oxygen mixes with a substance. As the metals are heated in the furnace, they combine with oxygen in the air. This reaction [burns sulfonates and other unwanted materials or impurities away. Consequently, only the pure precious metals remain. 

Cupellation furnaces are very old and in use for many years. These furnaces were used by some of the earliest civilizations, the Egyptians and Greeks. Their early furnaces were made of clay and were heated by wood or charcoal fires. There early designs were simple but effective. During the Middle Ages the cupellation fire assay became too elaborate and were built with more robust materials, including brick or stone And this made them more durable and better able to play their part. 


Why choose Nanyang JZJ What is a cupellation furnace?

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