What are the specifications and standards used in selection of high grade quartz used in optical glass and metallurgy? (grain size, SiO2 and impurities contents...)
Hello dear Wissem;
Yes Silica should have both chemical and physical properties in order to meet market requests;
For glass industry: Particle size distribution (PSD); moisture and chemical composition are very important.
For foundry sand basically AFS number (GFN: grain fines number) ad ADV (acid demand value) are very important.
Please check the attached file.
I am working for processing of silica since 10 years ago and if I can assist you I will be happy.
Regards,
Hamed
Dear Hamed,
I appreciate your response to my request
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