Porous ceramic honeycomb filter and method of producing the same

Details Porous ceramic honeycomb filter and method of producing the same Porous ceramic honeycomb filter and method of producing the same

1989-08-03

1991-12-03

Spitzer, Robert

Gas separation

Specific media material

Ceramic or sintered

55DIG30, 264 44, B01D 3920, C04B 3564

Patent

active

050696971

ABSTRACT:
A porous ceramic honeycomb filter having a chemical composition consisting of, as main components, 42-56 wt % SiO.sub.2, 30-45 wt % Al.sub.2 O.sub.3, and 12-16 wt % MgO and containing cordierite as a main component of a crystalline phase. The porous ceramic honeycomb filter has a porosity of at least 40% and not greater than 55%. The volume of pores having a diameter not larger than 2 .mu.m in the filter is not larger than 0.015 cc/g to thereby improve the collecting time with low pressure loss and high collecting efficiency.

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