More noise and storm in Europe.It is serious,specially now during election time in Spain
If Cataloniawill separate from Spain whatever way,than Spain will be bankrupt,Catalonia is richeast area in Spain
Any EU money will not be able to keep Spain away from be bankruptcy
The Catalan parliament has voted to formally begin the process of breaking away from Spain, deepening its standoff with the central government in Madrid as the region begins one of the most decisive weeks to date in its push for independence.
http://www.theguardian.com/world/2015/nov/09/catalonia-mps-to-vote-on-secession-plan-in-showdown-with-spains-government
I don't think that Catalonia will vote for the secession. But even will happen this fact you are in big wrong about the possible problems of Spain. It is true that Catalonia is one of the most richest area of Spain but Spain is much more bigger than Catalonia and have to many resources. You can learn everything about the Spain's economy here: https://en.wikipedia.org/wiki/Spain#Economy
Then if the countries of Europe has not allowed the go out of Greece from Eurozone it is out of mind to not act in the same way for Spain which is much more important and big country compared to Greece. And at the end, as I know (even I am not very informed about the situation there) the Spain is away from the situation in Greece. Have problems with the debt but that's all. Greece had and continue to have big problems not only with the debt but with the structure of the state, with the overall wealth which is not supported at all by its economy and its revenues, with various big privileges had from structures and even Greek people, with the big corruption, with the enormous tax evasion by almost all the Greek businesses etc. etc.
So have no comparison between the two situations. And this mean no problem of "Spainexit" from Eurozone.