Process for the extraction of alumina from minerals, rocks and i

Details Process for the extraction of alumina from minerals, rocks and i Process for the extraction of alumina from minerals, rocks and i

1976-09-30

1977-09-13

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423131, 423127, 423111, 423115, 423396, 71 58, C01F 712, C01F 718

Patent

active

040482855

ABSTRACT:
The invention concerns a process for solubilizing alumina in minerals, rocks or industrial waste products, in which the starting material in finely divided form is mixed with lime in an amount 1 to 3 moles or more of lime (CaO or Ca(OH).sub.2) for each mole of alumina and optionally 1 mole for each mole of any silica present in the starting material, and at the same time or thereafter with water, the resulting mix is maintained under hydrothermal conditions until the alumina has become solubilized by reaction with the lime, and the product is if necessary comminuted to bring it to a form suitable for leaching out of the solubilized alumina.

REFERENCES:
patent: 826354 (1906-07-01), Peffer
patent: 1856194 (1932-05-01), Seailles
patent: 2557891 (1951-06-01), Porter
patent: 3357792 (1967-12-01), Gehefugi

Affiliated with

Also associated with

Rating

Process for the extraction of alumina from minerals, rocks and i does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the extraction of alumina from minerals, rocks and i, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the extraction of alumina from minerals, rocks and i will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-274470