Diffuser body and method of manufacture

Details Diffuser body and method of manufacture Diffuser body and method of manufacture

1992-07-28

1993-06-01

Miles, Tim

Gas and liquid contact apparatus

Contact devices

Liquid tank

501 80, B01F 304

Patent

active

052156869

ABSTRACT:
A rigid, monolithic, porous gas diffusion element which is formed of a body of solid particles and which is comprised of a partially coated, permeable ceramic substrate is disclosed. The substrate consists essentially of a porous first ceramic material, has an apparent porosity of from about 35 to about 50 percent, and has a minimum active pore size of from about 40 to about 120 microns; and it is partially coated with a coating which consists essentially of a second ceramic material, has an apparent porosity of from about 35 to about 55 percent, and has a minimum active pore size of from about 10 to about 40 microns. The minimum active pore size of the substrate is from about 2 to about 5 times as great as the minimum active pore size of the coating.

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patent: 3753746 (1973-08-01), Koerner
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patent: 4118450 (1978-10-01), Nakamura et al.
patent: 4184885 (1980-01-01), Pasco et al.
patent: 4261932 (1981-04-01), Ewing et al.
patent: 4746341 (1988-05-01), Komoda
patent: 4820412 (1989-04-01), Rudolphi et al.
patent: 4965230 (1990-10-01), Nakajima et al.

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