Perlite products with controlled particle size distribution
First Claim
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1. An expanded perlite product having a controlled particle size distribution;
- wherein the ratio of the standard deviation of particle size distribution to the median particle size is less than 0.63; and
wherein the median particle size is less than 50 microns.
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Abstract
Expanded perlite products having controlled particle size distribution, methods of producing the expanded perlite products, and methods of use thereof are provided. The expanded perlite product has, for example, a low ratio of standard deviation of particle size distribution to median particle size (for example, less than 0.63) and low median particle size (for example, less than 50 microns). The expanded perlite product may be used in a variety of applications including filter applications.
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Citations
28 Claims
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1. An expanded perlite product having a controlled particle size distribution;
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wherein the ratio of the standard deviation of particle size distribution to the median particle size is less than 0.63; and
wherein the median particle size is less than 50 microns. - View Dependent Claims (2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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- 3. The expanded perlite product of 2, wherein the ratio of the standard deviation of particle size distribution to the median particle size is less than 0.58.
Specification