Zirconium-doped pseudoboehmite with the following properties: zirconium content of 0.5 to 10 mol % relative to Al water content of 20 to 35 weight percent total of the anionic impurities less than 0.5 weight percent. It is synthesized by a process wherein zirconium salt is added in calculated quantity...http://www.google.com.au/patents/US5089247?utm_source=gb-gplus-sharePatent US5089247 - Process for producing zirconium-doped pseudoboehmite
