In the process a slurry of alumina, preferably a microcrystalline boehmite pseudoboehmite intermediate, is prepared in an acidic aqueous medium and droplets of the slurry are passed through air into a column containing {HEAD ~ an upper body} of water immiscible liquid and {TAIL ~ ammonia} and a lower body of aqueous coagulating agent 
of
In the process a slurry of alumina , preferably a microcrystalline boehmite pseudoboehmite intermediate , is prepared in an acidic aqueous medium and droplets of the slurry are passed through air into a column containing { HEAD ~ an upper body } of water immiscible liquid and { TAIL ~ ammonia } and a lower body of aqueous coagulating agent
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH