Method of controlling emissions from a diesel cycle internal combustion engine with perovskite-type metal oxide compounds
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United States of America Patent
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Apr 7, 2009
Grant Date -
Apr 20, 2006
app pub date -
Sep 20, 2005
filing date -
Apr 10, 1996
priority date (Note) -
Expired
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Abstract
, in which A is a mixture originally in the form of single phase mixed lanthanides collected from bastnasite; B is a divalent or monovalent cation; M is at least one element selected from the group consisting of M is at least one element selected from the group consisting of elements of an atomic number of from 22 to 30, 40 to 51, and 73 to 80; a is 1 or 2; b is 3 when a is 1 or b is 4 when a is 2; and x is a number defined by 0
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