I don't have experience with this, but I have heard reports that Buxton paper can make a very successful pure pt print through the conventional printing methods.

As for not getting a print to appear, that shouldn't happen with a pure pt print, I don't believe. The biggest problem that I understand is that the coating will be uneven, and have a poor quality tone, and also uneven dmax. So I suspect you may have had something else that went wrong during the trial.

Some people call palladium prints palladiotypes, but I don't distinguish between the two, because that adds to the naming confusion. I am very forthright about the platinum content of my prints, but I don't like the idea that one print may be a platinotype, and another a palladiotype, simply because of the presence of trace amounts of platinum. I think that is drawing a somewhat arbitrary line in the sand.

Most platinum printers use at most 50% or so platinum, the rest palladium. Some use as little as 10% platinum. I generally call my prints platinum/palladium prints, or pt/pd prints, and in the details will provide the information on the platinum/palladium content.

I consider the term 'platinum print' to be more a description of the process, not the specific metals in the print itself.