Patent · US Expired

Centrifugal filtration onto membrane adsorbers

US6017454A · kind A · utility

8Cited by

8References

9Claims

0Family size

Assignee

Sartorius AG · DE

Inventors

Hans-Heinrich Horl · Bovenden, DE
Wolfgang Demmer · Göttingen, DE
Dietmar Nussbaumer · Göttingen, DE

Key dates

Filing date	Apr 14, 1997
Grant date	Jan 25, 2000
Priority date	—
Expiry date	Apr 14, 2017

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D15/1892
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filtration unit for the separation of substances from liquids utilizes a rotatable cylindrical module with a permeable wall disposed within a housing. A filter element which has at least one band of microporous membrane adsorber having a specific adsorption affinity for the substances to be separated is disposed within the cylindrical module so that the membrane absorber is abutted to the cylindrical module. The filter element encircles the feed inlet and can be in the form of an endless loop. A permeate plenum lies between the cylindrical module and the housing. The cylindrical module includes a liquid impermeable end cap which is provided with a coupling member adapted for connection to a drive of variable rotational speed.

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