Patent · US Expired

Process for the separation of biotechnologically produced valuable materials from a fermenter broth by crossflow micro- and/or ultrafiltration

US4886602A · kind A · utility

11Cited by

1References

9Claims

0Family size

Assignee

Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

Norbert Kuehne · Haan, DE
Wilfried Raehse · Goldkronach, DE
Franz-Josef Carduck · Haan, DE

Key dates

Filing date	Sep 15, 1988
Grant date	Dec 12, 1989
Priority date	—
Expiry date	Sep 15, 2008

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC12M47/10
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention is a process for the separation of biotechnologically produced valuable materials from a fermenter broth by crossflow microfiltration and/or ultrafiltration, in which at least two modules arranged in series and fitted with porous membranes are used per stage, to produce concentrate and a permeate which contains the valuable material. The pressure of the permeate is controlled so that the absolute pressure on the permeate side is at different absolute pressure in each module.

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