Assertion: employed cordierite | /r/CapableOf | preheat at 350–700°c
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Source sentences:
text: The physicochemical, surface and catalytic properties of the various solids calcined at 350–700°C were investigated using XRD, EDX, nitrogen adsorption at 77K and CO-oxidation by O2 at 220–280°C.The results obtained revealed that the employed cordierite preheated at 350–700°C was well-crystallized magnesium aluminum silicate (Mg2Al4Si5O18).