Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Producing multilayer work or article
Patent
1973-10-05
1983-08-02
Lechert, Jr., Stephen J.
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Producing multilayer work or article
264 60, 264514, 264515, 264102, 264141, 264176R, 2642091, 264DIG48, 427244, B29D 904
Patent
active
043965725
ABSTRACT:
The invention relates to a support for a ceramic porous barrier of the kind used for obtaining a concentration of uranium 235 in uranium hexafluoride by ultrafiltration. The support is formed by superposing a number of layers in the form of pastes, the particle size being homogeneous and constant in each layer and decreasing from the outer towards the inner layers. The pastes are prepared from powdered materials such as metals, oxides, silicates, borides, nitrides and halides to which mineral binders are added. The pastes are simultaneously extruded or co-extruded after which the resulting support is baked.
REFERENCES:
patent: 3203086 (1965-08-01), Eyraud et al.
patent: 3238056 (1966-03-01), Pall et al.
Batigne Jean
Charpin Jean
Davydoff Rodolphe
Erhart Francois
Plurien Pierre
Commissariat a l''Energie Atomique
Lechert Jr. Stephen J.
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