Method for refining metal silicon
A metal silicon, refined technology, applied in the direction of non-metallic elements, chemical instruments and methods, silicon compounds, etc., can solve the problems of large environmental pollution, high heating temperature, environmental pollution, etc.
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[0033] Embodiment 1: The specific embodiment 1 of the present invention provides a refining method for metal silicon. The technical scenario of this embodiment is that the metal silicon used in this embodiment is 441# silicon block. Of course, it can also be selected according to the actual situation Silicon blocks of different types; the degreasing solution selected in this embodiment is acetone, and the complexing agent solution selected is 2.5% mannitol water. The method as image 3 Shown: includes:
[0034] Step 31, grind the 441# silicon block and screen to obtain silicon powder of 150-250 mesh (30-75 μm);
[0035] The method for realizing this step can be as follows: crush the silicon block with a jaw crusher or use a hammer to break it into small pieces of 10-40mm, put it into an agate ball mill for dry grinding; put the silicon powder directly into a ball mill for ball milling. 20-30 large ball milling beads and 30-50 small ball milling beads are used for ball millin...
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