Candle filter and method for making

Details Candle filter and method for making Candle filter and method for making

1996-05-03

1999-09-07

Fortuna, Ana

Liquid purification or separation

Filter

Material

2105101, 210506, 210508, 2103231, 2103232, 264445, 55523, 55524, 55527, B01D 2900

Patent

active

059482575

ABSTRACT:
The invention provides a high temperature, damage tolerant candle filter (4) made of a porous ceramic material which is designed so that, if it fails, it does not fail catastrophically. The ceramic candle filter includes a hollow tube (14) having an open end, a closed end and a porous outer wall therebetween. The porous wall is made of a fiber ceramic reinforcement material impregnated with ceramic particles and a fugitive material that is substantially removed from the fiber ceramic reinforcement material or partially converting into a permeable material to provide porosity. The reinforcement material is generally strong enough to absorb the initial explosion force created when the ceramic particle carrier fails during, for example, reverse pressurization of the candle filter, thereby preventing the ceramic pieces from becoming projectiles.

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