Hello Berri Rouge,
One must normally wait 4 years from the time they obtain permanency before they can apply for Ordinary Naturalization. That waiting period is reduced to 1 year for anyone who is married to a Brazilian citizen or is the parent of a Brazilian born child.
When applying for naturalization you must report all absences from Brazil during that waiting period. It is likely that any absence greater than 90 days would extend your wait. Even though you are permitted to be outside of Brazil for up to 2 years once you've received permanency, I would not recommend absences longer than 90 day during your waiting period and processing of naturalization.
The naturalization process itself takes around 1 year. So in practical terms you would be looking at 2 years or more from the time you get permanency until you could be granted citizenship.
Cheers,
James
expat.com Experts Team