What is it that you have two items one thing that starts off Kosher and ends up non Kosher by putting something that starts off non kosher and ends up Kosher?
closed as not constructive by Isaac Moses Jun 17 '11 at 21:53
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Note that the salt is non-kosher only because of the blood it absorbed; for instance, while non-kosher flavorings are not nullified in large mixtures, this salt would be nullified because it's the blood (a non-flavoring) not the salt that's actually non-kosher.
Similarly, the Shach and Taz debate whether a halachic status of chezkas unsalted exists; as the change from before salting to afterwards is a physical one, not a halachic one.
Furthermore, bloody meat is not subject to the rule of "something that can be made permissible [davar sheyeish lo matirin] is not nullified", as what you really have here is meat (that's always kosher) mixed with blood (that's always non-kosher). All that salting does is unmix the two, it doesn't halachamagically permit the blood.