Patent ID: 9683270
Date: 2017-06-20
CPC Classifications: B01D,C02F,C14C,C22B

Claim:
1. A chrome recovery process comprising the steps of: steam sparging and mixing oil and solid byproducts from a chrome tannery process forming a steam sparged mixture; heating the steam sparged mixture and pumping into a three phase centrifuge separating a separated oil byproduct; acid washing and agitating the separated oil byproduct and thereby reacting an acid and chrome of the separated oil byproduct and solubilizing the chrome of the separated oil byproduct in a remaining water of the separated oil byproduct; ceasing agitation and allowing an acid washed oil byproduct to separate; heating the acid washed oil byproduct and removing water from the acid washed oil byproduct using a clarifier forming a clarified oil byproduct; and capturing the clarified oil byproduct for reuse.