Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iiia metal or beryllium
Patent
1974-03-21
1976-05-25
Carter, Herbert T.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group iiia metal or beryllium
23270B, 23273R, 423495, 423629, 423132, 423111, 210393, C01F 702, C01F 756
Patent
active
039594386
ABSTRACT:
A process for the production of pure alumina from alumina and silicate containing raw materials comprising feeding said raw material into the top of an acid resistant leaching tower; continuously feeding a leaching liquor containing hydrochloric acid into the bottom of said leaching tower, continuously flowing said leaching liquor upward through said raw material to leach out the alumina as a solution of aluminum chloride, withdrawing said solution enriched in aluminum chloride toward the top of said tower zone; withdrawing said raw material solid residue from the bottom of said tower zone to convey said solid residue from said leaching tower into a separation zone at a level higher than the level of said leaching tower; and separating said solid residue from said carrier liquid in said separation zone.
Apparatus for producing alumina according to this method includes the corresponding means.
REFERENCES:
patent: 1778083 (1930-10-01), Marburg
patent: 2249761 (1941-07-01), Hixon et al.
patent: 2376696 (1945-05-01), Hixon et al.
patent: 2476979 (1949-07-01), Hoeman
patent: 3241910 (1966-03-01), Johnson
patent: 3406010 (1968-10-01), Holderseed et al.
Journal of Chemical Education, Mar. 1948, pp. 159-162.
LandOfFree
Method for the fabrication of pure alumina from Al.sub.2 O.sub.3 does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for the fabrication of pure alumina from Al.sub.2 O.sub.3, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the fabrication of pure alumina from Al.sub.2 O.sub.3 will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-906130