| http://www.w3.org/ns/prov#value | - The calcined hydrotalcites used according to the present invention are generally employed as finely divided powders having a mean particle diameter d50 of from 5 to 200 ??m, preferably from 10 to 150 ??m, particularly preferably from 15 to 100 ??m and in particular from 20 to 70 ??m.
|
