CORDIERITE-BASED COMPOSITE MEMBRANE COATED ON CORDIERITE MONOLITH
First Claim
1. A composite-membrane monolith comprising:
- a cordierite monolith having surfaces with a surface median pore size of from about 1 μ
m to about 15 μ
m;
a cordierite-ceramic composite membrane bonded to surfaces of the cordierite monolith and having membrane surfaces,wherein;
the cordierite-ceramic composite membrane is a composite formed from a mixture comprising;
cordierite particles having a cordierite median particle size smaller than the surface median pore size; and
ceramic particles other than cordierite particles, the ceramic particles having a ceramic median particle size smaller than the cordierite median particle size; and
the membrane surfaces have a membrane median pore size of 0.3 μ
m or less.
1 Assignment
0 Petitions
Accused Products
Abstract
Composite-membrane monoliths include a cordierite monolith having a cordierite-ceramic composite membrane bonded to surfaces thereof with a surface median pore size. The cordierite-ceramic composite membrane has membrane surfaces with a membrane median pore size of 0.3 μm or less. The cordierite-ceramic composite membrane may be a composite formed by firing the cordierite monolith subsequent to applying a cordierite-ceramic composite slip to surfaces thereof. The cordierite-ceramic slip may include cordierite particles and ceramic particles. The cordierite particles may have a cordierite median particle size smaller than the surface median pore size. The ceramic particles may have a ceramic median particle size smaller than the cordierite median particle size.
10 Citations
20 Claims
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1. A composite-membrane monolith comprising:
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a cordierite monolith having surfaces with a surface median pore size of from about 1 μ
m to about 15 μ
m;a cordierite-ceramic composite membrane bonded to surfaces of the cordierite monolith and having membrane surfaces, wherein; the cordierite-ceramic composite membrane is a composite formed from a mixture comprising; cordierite particles having a cordierite median particle size smaller than the surface median pore size; and ceramic particles other than cordierite particles, the ceramic particles having a ceramic median particle size smaller than the cordierite median particle size; and the membrane surfaces have a membrane median pore size of 0.3 μ
m or less.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for forming a composite-membrane monolith, the method comprising:
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applying a cordierite-ceramic composite slip to surfaces of a cordierite monolith, the cordierite-ceramic composite slip comprising cordierite particles and ceramic particles other than cordierite particles to form a coated cordierite monolith, the surfaces of the monolith having a surface median pore size of from about 1 μ
m to about 15 μ
m, the cordierite particles having a cordierite median particle size smaller than the surface median pore size, the ceramic particles having a ceramic median particle size smaller than the cordierite median particle size; andfiring the coated cordierite monolith to form the composite-membrane monolith, the cordierite-ceramic composite slip forming, during the firing, a cordierite-ceramic composite membrane bonded to the surfaces of the cordierite monolith and having a membrane surface with a membrane median pore size of 0.3 μ
m or less. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification