I don't understand how the "purification" process would be substantially more difficult than distilling neon from air. If the waste blend has a higher percenta

I don't understand how the "purification" process would be substantially more difficult than distilling neon from air. If the waste blend has a higher percentage of neon than air, it should probably be cheaper/easier than buying new. I suspect that the real inconvenience is in the capture systems, another set of tubes in the chip fab needing servicing and occasional downtime.