[Andy]

Well....7-6-P wouldn't apply, since the catcher is not throwing or catching a ball.

7-6-S probably doesn't apply since there is no play at the plate as I read your description.

7-6-Q could be used to call the interference, since the batter is activey moving and kicks the ball away, hindering the catcher from retrieving it.

I need to know a bit more, however. Was there a play that was being interferred with by the batter contacting the ball? From your description, it doesn't seem that R1 is trying to advance home until after the ball is kicked away. If F2 was able to retrieve the ball would there be a play on R1 at third? If not, could you just kill the ball, put R1 back at third and play from there? 7-6-S has an exception similar to this, but specifically mentions a batter making contact with a return throw from the catcher to the pitcher.