Process for the treatment of raw materials containing...

Details Process for the treatment of raw materials containing... Process for the treatment of raw materials containing...

C - Chemistry, Metallurgy

22

B

53/176

C22B 9/02 (2006.01) C01G 1/10 (2006.01) C01G 28/00 (2006.01) C22B 3/08 (2006.01) C22B 3/22 (2006.01) C22B 3/38 (2006.01) C22B 30/04 (2006.01)

Patent

CA 1113253

ABSTRACT OF THE DISCLOSURE A process for the treatment of raw materials which contain arsenic and metal to produce a metal-free arsenic product and an arsenic-free metal sulfate is disclosed, in which the raw material is leached by using an aqueous solution of sulfuric acid and then the metals are crystallized as sulfates from the separated aqueous solution, which is separated from the metal sulfate crystals. The leach is performed at elevated temperature under oxidizing conditions, in order to bring the arsenic to a 5-valent form, the metal sulfates are crystallized out from the selectively separated, arsenate- bearing aqueous solution by cooling, and arsenic is removed from at least part of this aqueous solution before the aqueous solution is returned to the leach.

316765

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-410021