公开(公告)号：US3842163A

公开(公告)日：1974-10-15

申请号：US17808071

申请日：1971-09-07

Applicant: ALUMINUM CO OF AMERICA

Inventor： RUSSELL A ,  STOUP P ,  JARRETT N ,  BURRELL L

IPC: B01D7/00 ,  B01D7/02 ,  C01F7/00 ,  C01F7/56 ,  C01F7/58 ,  C01F7/60 ,  C01F7/62 ,  C22B1/08 ,  C22B1/10

CPC classification number: B01D7/02 ,  C01F7/58 ,  C01F7/60 ,  C01F7/62 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/10 ,  C01P2006/20 ,  C01P2006/80 ,  Y10S264/19 ,  Y10T428/2982

Abstract: 1. PROCESS FOR THE PRODUCTION OF ALUNIMUM CHLORIDE WHICH COMPRISES REACTING CHLORINE AT A TEMPERATURE OF BETWEEN ABOUT 450*-800* C. WITH ALUMINA HAVING AN AVERAGE ALPHA ALUMINA BEING INTERMIXED WITH CARBON AND WEIGHT AND AN AVERAGE SURFACE AREA OF AT LEAST ABOUT10 M.2/G., SAID ALUMINA BEING INTERMIXED WITH CARBON AND COMPOSITELY HAVING AN AVERAGE HYDROGEN CONTENT OF LESS THAN ABOUT 0.5% BY WEIGHT AND AN AVERAGE CARBON CONTENT OF ABOUT 15-24% BY WEIGHT BASED ON THE TOTAL ALUMINA, CARBON AND HYDROGEN CONTENTS PRESENT, TO FORM A GASEOUS EFFLUENT CONTAINING ALUMINUM CHLORIDE AND CARBON OXIDES IN WHICH AT LEAST ABOUT 25% BY WEIGHT OF SUCH CARBON OXIDES IS CARBON DIOXIDE, AND RECOVERING THE ALUMINUM CHLORIDE FROM THE GASEOUS EFFLUENT.