Deflocculation apparatus and methods thereof

US6797342B1 · kind B1 · utility

Assignee

• Xerox Corporation · US

Inventors

• J Michael Sanchez · Fairport, US
• Paul C. Lincoln · Rochester, US
• John M. Hammond · Ontario, US
• Thomas A. Trabold · Pittsford, US
• Cindy C. Chen · Rochester, US
• Jian Cai · Bellerose Terrace, US

Key dates

• Filing date: Sep 15, 2000
• Grant date: Sep 28, 2004
• Expiry date: Oct 2, 2021

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2311/04
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method including: sonicating a stream containing a dispersion comprised of agglomerated primary particles; and filtering the resulting sonicated stream containing a dispersion comprised of de-agglomerated primary particles. An apparatus including: an ultrasonic adapter to ultrasonicate a stream of a liquid dispersion of agglomerated primary particles; and a filter member adapted to filter the resulting ultrasonicated stream containing a dispersion of de-agglomerated primary particles; and optionally a coater adapted to coat the resulting filtered stream containing a dispersion of de-agglomerated primary particles onto a receiver.