Honeycomb structure for fluid filtration
US4894160A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1988 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | Sep 6, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2319/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A honeycomb structure for fluid filtration includes a support of porous ceramic material having a multiplicity of axially parallel passageways extending therethrough and uniformly spaced by porous partition walls to permit flow of fluid under pressure passing therethrough and a selective membrane coated onto the surface of the passageways to separate one or more components from the fluid and to permit flow of filtrate passing therethrough to be carried through the porous partition walls to the exterior surface of the partition walls for collection. In the honeycomb structure, the partition walls are formed to permit the passage of filtrte at a flow quantity more than twenty times the flow quantity of filtrate passing through the selective membrane and partition walls, and an average pore size of the selective membrane is about from 10 to 10000 angstroms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.