Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group va metal or arsenic
Patent
1984-10-26
1986-03-25
Doll, John
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group va metal or arsenic
C01B 2700, C01B 2900
Patent
active
045782547
ABSTRACT:
The invention relates to a process for the refining of sulfidic concentrates which contain arsenic, antimony and bismuth, wherein a suspension of the sulfidic concentrate and oxygen or oxygen-enriched air is introduced into the upper part of a reaction zone, in the lower part of which the direction of the gases is deflected sidewards in order to cause the molten and solid particles traveling along with the gases to impinge against the surface of the melt below the reaction zone. In order to form a molten or semi-solid phase, concentrate, oxygen or oxygen-enriched air, and a carbon- or sulfur-containing fuel are introduced into the reaction zone in such proportions that in the upper part of the reaction zone there is formed an atmosphere containing sulfur and sulfur dioxide and having a temperture above 900.degree. C. and a maximum oxygen pressure of 10.sup.-6 atm in order to volatilize the arsenic, antimony and bismuth, and possibly the lead and zinc. During the same stage, air or oxygen-enriched air is fed into the lower part of the reaction zone in order to oxidize the concentrate to the desired metal concentration.
REFERENCES:
patent: 2867526 (1959-01-01), Heath et al.
patent: 3220796 (1965-11-01), Espinosa
patent: 4083924 (1978-04-01), Styring
patent: 4497780 (1985-02-01), Barin et al.
Doll John
Langel Wayne A.
RM Metal Consulting Ky
LandOfFree
Process for the refining of sulfidic concentrates which contain 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 refining of sulfidic concentrates which contain , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the refining of sulfidic concentrates which contain will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-629841