IM-20 crystalline solid and process for its preparation
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United States of America Patent
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May 21, 2013
Grant Date -
Feb 16, 2012
app pub date -
Nov 26, 2009
filing date -
Dec 18, 2008
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Abstract
The invention concerns a crystalline solid designated IM-20 which has the X-ray diffraction diagram given below. Said solid has a chemical composition expressed by the empirical formula: mXO2: nGeO2: pZ2O3: qR: sF: wH2O, in which R represents one or more organic species, X represents one or more tetravalent element(s) other than germanium, Z represents at least one trivalent element and F is fluorine.
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