| 摘要 |
Use of a composition comprising;A) from 55 to 90% by weight of aluminum oxide,;B) from 5 to 35% by weight of a sodium compound which at a pH of 7 at 20° C. has a solubility in water of ≦300 g/l and can be converted by thermal means virtually exclusively into sodium oxide as only solid,;C) from 0 to 15% by weight of a magnesium compound and/or a lithium compound selected from the group consisting of: magnesium oxide, magnesium carbonate, magnesium nitrate, lithium oxide, lithium carbonate, lithium nitrate and;D) from 0 to 30% by weight of zirconium dioxide for producing a shaped ceramic body by extrusion. |
