Electronics help changing a soldered processor

[Cal_stir]

If the chip is discrete component (has legs thru the board) you could solder in a chip holder then insert the chip, no chance of overheating.
If surface mount then flux the contact points and solder a few pins at a time, there may be a chip holder available for surface mount as well.
Yes wear anti-static, copper wire around your wrist and grounded will work.