Apparatus for the continuous on-site chemical reprocessing of ultrapure liquids

US5354428A · kind A · utility

Assignee

• Athens Group Holdings LLC · US

Inventors

• R. Scot Clark · Fallbrook, US
• Joe G. Hoffman · Irvine, US
• John B. Davison · Amherst, US
• David W. Persichini · Oceanside, US
• Wallace I. Yuan · Irvine, US
• Bruce A. Lipisko · Carlsbad, US
• Alan Henry Jones · Arlington, US
• Alan W. Jones · San Clemente, US

Key dates

• Filing date: Jul 25, 1989
• Grant date: Oct 11, 1994
• Expiry date: Jul 25, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S203/23
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Method and apparatus for the distillation of liquids which is particularly suited for the removal of soluble impurities and insoluble and non-volatile particles of 10 microns to 0.2 micron or less in size. A substantially elongated distillation chamber having walls equipped with axially disposed concentric boiling rings spaced from the walls near the bottom, and a packing stop, packing redirector rings for condensed vapor, and a reflux condenser in the upper part of the distillation chamber provide, during distillation, a smooth convective upward flow of distilling liquid and vapor proximate the walls and boiling rings and a smooth convective downward flow of distilling liquid and vapor substantially centrally of the distillation chamber.