Dead-end membrane adsorbers

US5618418A · kind A · utility

Assignee

• Sartorius AG · DE

Inventors

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

Key dates

• Filing date: Sep 7, 1995
• Grant date: Apr 8, 1997
• Expiry date: Sep 7, 2015

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J20/28052
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A dead-end filtration unit without a housing comprising at least one filter cassette, each cassette comprising a plurality of laminar sections of porous adsorptive membrane, which have been rendered fluid-impermeable on their peripheries, the cassettes being sealingly compressed between two filter retainers fitted with feed inlet and permeate outlet and wherein the laminar sections are made of the same or different membrane adsorber types.