METHOD FOR PROCESSING OF IRON-LADEN SPENT SULFURIC ACID OR IRON-LADEN SULFURIC MATERIALS

摘要

The invention concerns a method for processing heavy metal-laden spent sulfuric acid. For this, iron-laden spent sulfuric acid or iron-laden sulfuric materials obtained therefrom are reacted with a material that contains iron chloride and optionally other metal chlorides, producing iron (ІІ) sulfate. The spent sulfuric acid preferably derives from titanium dioxide production.