Membrane device for filtration, separation, or catalytic reaction
US5143614A · kind A · utility
13Cited by
2References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1991 |
| Grant date | Sep 1, 1992 |
| Priority date | — |
| Expiry date | Feb 14, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/0081
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A membrane device comprising a macroporous block of sintered material with the pores at each end of the block being filled with a porous sintered material, wherein the porous sintered material comprises at least two types of grain: grains of a first type called "frame" grains having a diameter lying in the range about 1% to about 20% of the diameter of the pores in said block; and grains of a second type called "finishing"grains having a diameter lying in the range about 0.2% to about 20% of the diameter of the frame grains, with the finishing grains being received in the pores defined between the frame grains.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.