Does a higher mesh size for pyrite result in a higher amount of available sulfur upon combustion?
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Generally, the higher the mesh size of pyrite, the greater the amount of available sulfur obtained after firing. However, in my experiments, when the mesh size exceeded 300, the amount of available sulfur produced was actually lower. I’m not sure if there is something wrong with my experiments; I would appreciate advice from those who are more experienced. Thank you!
No, it depends on the amount of sulfur contained in the ore
That’s not the case; everything has its limits. A higher mesh number means the material is finer, and if the material is too fine it can easily be blown away by the air at the bottom of the furnace, which is not conducive to production... Our factory uses 200 mesh as standard
The incineration of pyrite involves processes such as ore preparation, drying, and crushing, in order to ensure the proper sulfur content, moisture level, and particle size of the pyrite.
The higher the mesh size, the greater the specific surface area, which is favorable for the reaction. But this is only a necessary condition; there are several other factors that affect the speed of the reaction. Just as having a large number of troops and better weapons is a necessary condition for winning battles, it does not guarantee victory.
Generally speaking, a higher mesh number results in smaller particle size of the mineral powder, which facilitates contact with oxygen and allows S to be converted into sulfur dioxide; as a result, the effective sulfur content is high. However, if the particle size of the mineral powder is small, it is easily blown away, resulting in sulfur loss; this leads to a decrease in the so-called effective sulfur content. Therefore, it is best to select the optimal particle size based on tests in order to increase the utilization rate of S