Method and apparatus for inspissating solid-liquid mixtures by membrane technology
US5800713A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 24, 1996 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Jun 24, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23L2/74
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
To thicken remaining residues in ultrafiltration or microfiltration for clarifying fruit juices, systems having membrane module groups (1, 2, 3) connected in series are used in the cross flow process with a residue circuit. The groups (1, 2, 3) can be individually switched on or off in succession, depending upon the present thickening gradient of the residue in the residue feed stream. By operating a suitable number of groups (1, 2, 3), an operationally favorable working pressure is kept constant at the membrane modules until as great as possible a desired value of the thickening gradient of the residue is reached. In this way, an improvement of the overall capacity of filtration systems is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.