Ultra-high purity, ultra-high performance diatomite filtration media
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United States of America Patent
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Nov 29, 2022
Grant Date -
Nov 21, 2019
app pub date -
Jan 6, 2017
filing date -
Jan 6, 2017
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Abstract
This invention concerns ultra-high purity, ultra-high performance biogenic silica filtration products comprising diatomaceous earth. In particular, it relates to products comprising diatomaceous earth which is derived from ores that have been specifically selected for their naturally low centrifuged wet density and which have been intensively beneficiated to reduce extractable impurities to near or below detection limits. The low centrifuged wet density of the selected natural ore is either maintained or further reduced through the beneficiation process, which provides for filtration product/media with high particulate holding capacities able to provide for extended filtration cycle times.
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