Inventor
ADJEMIAN ALAIN
5 patents
Patents
5 patentsUS4237102ADec 2, 1980
Process for obtaining pure alumina by the hydrochloric attack of aluminous ores and extraction of the impurities by means of a sulphuric treatment
PECHINEY ALUMINIUM34 citations91
US4177242ADec 4, 1979
Method of obtaining pure alumina by acid attack on aluminous minerals containing other elements
PECHINEY ALUMINIUM20 citations81
US4124680ANov 7, 1978
Method of obtaining pure alumina by acid attack on aluminous minerals containing other elements
PECHINEY ALUMINIUM23 citations81
US4241030ADec 23, 1980
Continuous process for obtaining pure alumina from an acidic liquor originating from the chlorosulphuric attack of an aluminous ore and for the purification of the liquor which has been freed from alumina
PECHINEY ALUMINIUM20 citations77
US4155984AMay 22, 1979
Recovery of H2 SO4 acid
PECHINEY ALUMINIUM1 citations51