I work with e-waste, we crush, grind and filter the gold and copper out or the rest of the junk.
I think that could be i good way to recycle electronic circuit in the same way that ore is turned to dust then clumps electronic circuit could be turns into electronic circuit bust then filtered into copper and iron clumps, a better way of recycling but you can't recycle blue to red then red to green, it's all just one big mic of copper and iron sludge.

Hi big guy.
Cool to see players with irl competences come here to suggest me stuff!

And I must say that enhanced efficiency on Fulgora (the first scenario that your post makes me think of) recycling or something dedicated on circuits could really be interesting to explore as a field.
I'll definitively keep that in mind, thank you!
_77

🚀 Version 4.0.0 of Extended Vanilla: Refining is LIVE! 🚀

The mod now fully supports Factorio 2.1, but the news don't finish here:
🛢️ Advanced Oil Processing: We are officially extending the mod's philosophy to fluids with Advanced Coal Liquefaction and Elite Oil Processing.
⚙️ Deterministic Scrap Refining: Tired of dealing with the Recycler's RNG on Fulgora? Now you can build a dedicated, fully deterministic refining chain.
🎨 Visual Upgrades: Updated the sprites to better match the core game and added immersive new graphical details.

You can as always check out the full details in the in-game changelog.