Patent · US Expired

Method for purifying contaminated liquids

US6656364B1 · kind B1 · utility

1Cited by

7References

42Claims

0Family size

Assignee

OHMI Forschung und Ingenieurtechnik GmbH · DE

Inventors

Peter Transfeld · Magdeburg, DE
Gunter Borner · Radevormwald, DE
Matthias Schneider · Heidesheim, DE
Rainer Wetzel · Uenglingen, DE

Key dates

Filing date	Sep 17, 1999
Grant date	Dec 2, 2003
Priority date	—
Expiry date	Sep 17, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11B3/10
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a method for cleaning liquids containing impurities. Adsorbents are added to the liquid, which adsorb the impurity. Several particles of adsorbent are agglomerated with the impurities adsorbed therein/thereon to form greater particles of adsorbent. The now greater particles of adsorbent are suspended in the liquid once again. The liquid containing the greater particles of adsorbent is then filtered.An apparatus possesses at least one agglomerator with a feed inlet, an outlet each for the separated components (clear runnings, concentrated suspension) and an apparatus for producing the agglomeration. The latter is preferably an apparatus for producing an electric field. A pressure filter with a feed inlet for the concentrated suspension and an outlet each for the separated components is further provided.

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