Brine purification

US8343328B2 · kind B2 · utility

Assignee

• DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

• Bruce D. Hook · Lake Jackson, US
• Dan Tirtowidjojo · Lake Jackson, US
• Frank Koester · Bremervörde, DE
• Sunil K. Chaudhary · Missouri City, US
• Anil Mehta · Lake Jackson, US
• Jean P. Chauvel, Jr. · Lake Jackson, US
• Christopher P. Christenson · Lake Jackson, US
• Timothy C. Frank · Midland, US
• Celio Lume Pereira · Eilsleben, DE
• Steve Gluck · Lake Jackson, US
• Glenn Lord · Lake Jackson, US
• David H. West · Houston, US
• Christine Lundstroem · Drochtersen, DE
• Annett Horn · Hammah, DE
• Istvan Lengyel · Lake Jackson, US

Key dates

• Filing date: Aug 18, 2008
• Grant date: Jan 1, 2013
• Expiry date: Jan 22, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C02F2209/20
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Process and apparatus for reducing organic content of brine comprising subjecting a brine solution to at least two purification treatments selected from electrochemical treatment, chlorinolysis, or other chemical oxidation treatment, carbon adsorption, extraction, biological treatment and chrystallizing treatment; wherein the organic content of purified brine is sufficiently low to enable sense of the purified brine in an industrial process.