I have friends on my personal profile. How do I get them to my business page?
Unfortunately, you are not able to "migrate" the friends you have from your personal profile over to your business page.
But by using some of the tips under "How can I get more "Likes" on my Facebook page?" it will allow you to show your friends your new page and encourage them to "Like it".
The main key here is: don't be shy about using your personal profile to promote your business page or about inviting people to your new page. However, with regard to moving your friends to the business page, there is no easy "migrate" option.