Treatment of iron chloride from chlorination dust

US6511646B1 · kind B1 · utility

Assignee

• Tioxide Group Services Limited · GB

Inventors

• Barry Hooper · Melbourne, AU
• Martin Hirsch · Friedrichsdorf, DE
• Andreas Orth · Friedrichsdorf, DE
• Brian Bennett · Stockton-on-Tees, GB
• John F. Davidson · Cambridge, GB
• Martin Conduit · Hilden, DE
• Neil Fallon · Stockton-on-Tees, GB
• Peter J. Davidson · Darlington, US

Key dates

• Filing date: Jan 12, 2001
• Grant date: Jan 28, 2003
• Expiry date: Jan 12, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01G49/06
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for producing chlorine and iron oxide from iron chloride (which may be generated as a by-product of the direct chlorination of titaniferous ores) comprises the steps of converting ferrous chloride to ferric chloride by reaction with chlorine, separating the solids from the gaseous products, reacting the gaseous ferric chloride with oxygen, condensing unreacted ferric chloride onto iron oxide particles, separating the gaseous products from the iron oxide particles and recycling the iron oxide particles to the oxidation or condensation step.