There are actually two adaptations of "Kryptonite Nevermore" I can think of off the top of my head - though neither is particularly high profile.
One was from
Superman Adventures # 54 /
55, and adapted the story for the
Superman the Animated Series tie-in comic. That one is pretty straightforward.
The other was from
Superman Special vol 2 # 1, and that one is more infamous. The most surface level element of that small controversy is that the story didn't fit in with the continuity of Superman titles at the time, as it was meant to be published a few years prior.
But the other, more intriguing element is the
urban legend that Superman was going to be revealed as having secretly been the Sand Superman for years, in a precursor to Marvel's "Ben Reilly was the Original Peter All Along" reveal from Spider-Man's Clone Saga! The theory also includes the supposition that Superman having been the Sandman was the cause for his gradually increasing powers, and that that detail was a potential way for Superman to return from the dead after Doomsday killed him!
Despite the fact that this was apparently never intended by the creators, I couldn't help but to think about it when at the end of "The Final Days of Superman," Kal collapsed into a pile of sand after dying. Fascinating!
Er, anyway, neither of those stories were written in the Bronze Age, just adapted from the story that kicked off its start, so I guess my post is ultimately tangential to the original prompt, but I thought it was interesting enough to bring up!