Hydrometallurgical production of zinc oxide from roasted zinc co

Details Hydrometallurgical production of zinc oxide from roasted zinc co Hydrometallurgical production of zinc oxide from roasted zinc co

1991-07-01

1993-04-20

Lewis, Michael

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423105, 423109, C01G 902

Patent

active

052040844

ABSTRACT:
A process is provided for obtaining high quality high surface area zinc oxide from a roasted zinc sulphide concentrate by leaching with an ammoniacal ammonium carbonate solution. The process utilizes optional preliminary oxidation and water leaching steps to remove soluble impurities and an optional aqueous sulphur dioxide leaching step to selectively remove readily soluble zinc oxide. The process includes an improved source of roasted zinc sulphide concentrate. The process also includes an optional reduced pressure calcining step to produce zinc oxide with further increased surface area.

REFERENCES:
patent: 875866 (1908-01-01), Sulman
patent: 1204843 (1916-11-01), Bretherton et al.
patent: 2055613 (1936-09-01), Sessions
patent: 2603554 (1952-07-01), Calbeck
patent: 2839388 (1958-06-01), Van Hare, Jr. et al.
patent: 3523787 (1970-08-01), Ulrich et al.
patent: 3582317 (1971-06-01), Gamo et al.
patent: 3753692 (1973-08-01), Bourchier et al.
patent: 4071357 (1978-01-01), Peters
patent: 4071609 (1978-01-01), Robinson
patent: 4118458 (1978-10-01), Robinson
patent: 4317803 (1982-03-01), Wilkomirsky et al.
patent: 4689146 (1987-08-01), Kasai et al.
patent: 5017346 (1991-05-01), Spink et al.
patent: 5028410 (1991-07-01), Spink et al.

Affiliated with

Also associated with

Rating

Hydrometallurgical production of zinc oxide from roasted zinc co does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydrometallurgical production of zinc oxide from roasted zinc co, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrometallurgical production of zinc oxide from roasted zinc co will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1524579