How is the C700 boron-selective resin? How effective is it? Which company uses it?
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How is the C700 boron-selective resin? How effective is it? Which company uses it?
The C700 boron-selective resin is mainly used to remove B impurities from crude trichlorosilane. It is said that a certain polysilicon plant has seen good results using it.
Reply to 2# kitewxg: Can resin be recycled? What is its price? What is the usage amount?
I’m not entirely sure about the specifics, so I hope to consult with those who are more experienced. I wonder if the senior has any materials on this topic?
It seems that this resin can only be recycled by the manufacturer, and the recycling cost is very high; the operating costs are also high. It might be a way for the manufacturer to make money, but it’s not yet clear what the actual results will be
I inspected several manufacturers, and all said the performance was good; some silicon trichloride plants use it and don’t need any other equipment
You said the results are very good; would it be possible to share the specific figures?
The manufacturer claims that boron can be reduced to around 5 ppt (distillation can also achieve such a level), and in that case it is suitable for use in the synthesis of trichlorosilane; however, it is still some distance away from meeting the requirements for electronic-grade materials.