Patent · US Expired

Removal of contaminants

US5281339A · kind A · utility

4Cited by

7References

10Claims

0Family size

Assignee

ICI Australia Operations Proprietary Limited · AU

Inventors

David Mainwaring · Melbourne, AU
Ian H. HARDING · Melbourne, AU
Peter Sanciolo · Morgan, AU

Key dates

Filing date	Dec 6, 1991
Grant date	Jan 25, 1994
Priority date	—
Expiry date	Dec 6, 2011

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S210/914
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A method of recovering contaminants from suspension or solution in a liquor comprises the steps of forming a foam of the liquor, displacing said foam onto a drainage device to dry said foam and separate the liquor said contaminants being retained in the dried foam and the drained liquor being reduced in contaminant content.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.