Process and apparatus for thickening of solid liquid mixtures by means of membrane
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 2, 1997
Grant Date -
N/A
app pub date -
Jul 26, 1995
filing date -
Dec 3, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
To thicken retentate residues using ultra- or microfiltration to clarify fruit juices, apparatuses which have membrane modules (1, 2) are used in the cross-flow process with a retentate circuit. It is proposed that first, the process be carried out with virtually constant retentate overflow velocity at the membranes until there is an increased concentration. Then the transmembrane pressure of membrane modules (1, 2) is kept constant or further increased, and the overflow velocity is reduced, until the desired thickening of the retentate residue is achieved. So that the last reduction step can be carried out, speed-governed retentate displacement pumps (8) are employed. To prevent stoppages of the membranes of membrane modules (1, 2), the apparatus is operated with special flow dividers (10) for the retentate, or an individual circulating pump is associated with each group of membrane modules.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully