Pyrolysed Carbon Black

Guys we are manufacturing pyrolysed oil from waste tyres.I want to remove all the ash content and Inorganic content from Carbon black,(that we are getting after pyrolysis).

Can any one suggest me how to remove ZnO and Sulfur from Carbon black,cheaply.I want to reduce both to around 0.03% by wt so that we can use it for steel manufacturing.

CR4 Admin - email address removed

From the CR4 Rules: Do not post phone numbers or email addresses. The CR4 Admin will delete all phone numbers and email addresses posted in threads or comments. You can share this information via the CR4 internal messaging system.