Filter medium for fluid
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United States of America Patent
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Jul 14, 1981
Grant Date -
N/A
app pub date -
Mar 26, 1980
filing date -
Mar 26, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A filter medium for fluid, which is a sintered body in which alumina refractory is 100 parts by weight, more than 95% by weight of said refractory being pelletized spheroids of less than 1.0 mm in particle size, while inorganic binder having particle size less than 40 microns is in the range 15-30 parts by weight and fluoride and/or oxide of lithium is in the range 0.1-1 part by weight, and in which filter medium the mean pore diameter is in the range 500-1 microns and the porosity is in the range from 15 to 40%.
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