I have some technical questions about geological sample milling processes.
1. Which types of balls are best for grinding different hardness minerals, for example: hardmetal tungsten carbide or zirconium oxide or other.
2. After milling process, how to clean the mill to avoid contamination as much as possible. and if there is recommended any other equipment for lab. operator to avoid contamination.
3. If 300 minerals were milled, each weight would be 30 grams, about how many balls it would take to be enough for this? also to take into account the reserve stock.
1. Tungsten Carbide and Zirconia are the best
https://unionprocess.com/grinding-media.html
2. Use bath sonicator
3. It depends on your vessel volume
Regarding 2., if there are solid residues on the balls and the mill, which are difficult to remove, you can mill some sand + a little bit of water. After that, you can easily rinse the mill and balls with water or in a bath sonicator as Hassan recommended.
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