Process for alunite treatment

Details Process for alunite treatment Process for alunite treatment

1977-11-23

1978-09-26

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423131, 423182, 423199, 423208, 423629, C01F 706

Patent

active

041170776

ABSTRACT:
A process for alunite ore treatment which comprises roasting alunite in the presence of oxygen at a temperature of from 580.degree. to 620.degree. C. for 1 to 3 hours, decomposing the roasted alunite by exposure to reducing agents at a temperature of from 580.degree. to 620.degree. C., subjecting the reduced alunite to hydrochemical treatment by use of a sodium hydroxide solution of concentration from 100 to 150 g/lit in terms of Na.sub.2 O, decomposing the resultant aluminate liquor, with the aluminum hydroxide component precipitating out, and finally, washing and baking the aluminum hydroxide precipitate to obtain same as an end product. The invention provides a comprehensive method of treatment of alunite ores the associated rock whereof comprises silica in the form of opal and chalcedony earlier believed to be refractory to comprehensive treatment by alkaline methods.

REFERENCES:
patent: 3890425 (1975-06-01), Stevens et al.
patent: 3984521 (1976-10-01), Nasyrov et al.
patent: 3996333 (1976-12-01), Rooke et al.
patent: 4029737 (1977-06-01), Stevens et al.

Affiliated with

Also associated with

Rating

Process for alunite treatment 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 alunite treatment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for alunite treatment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2089931