You can definitely convert a personal account to a business account. Of course, you can create a separate business account if you wish to do that. Here is a good article to read over. I hope this will help you.
@bkrosson Glad you made it to the community!
I have created a video on this specifically on The Pinterest Chronicles....Geeking Out On All Things Pinterest & The PBC
I have a channel on Youtube if you're interested in checking it out - Its new but based on some of the responses I have had useful for exactly the kind of information your looking for. I am trying to help those who are seeking information and how to's on all things Pinterest & The PBC.
If you need anything else please ask here - I hope this helps you and I hope you keep coming back to the PBC.