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Chemical Reactions in the Roasting of Copper Sulfides.

Authors
Shah-ID; Khalafalla-SE
Source
NTIS: PB 196 613 :21 pages
Link
NIOSHTIC No.
10009208
Abstract
The Bureau of Mines investigated the sequence of principal chemical reactions taking place during the roasting of covellite (cus). Practically all covellite is converted to digenite (cu1.8S) before oxidation to cu2o begins. Part of the cu2o is then converted to cuo, which in turn forms cuso4 through cuo.Cuso4 as an intermediary. Cuso4 and cuo.Cuso4 decompose at 600 deg. to 700 deg. C to yield cuo and so3 (g) as final products. An overall mechanism is proposed for chemical reactions occurring at different interfaces of partially oxidized cus pellets.
Publication Date
19700101
Document Type
IH; Report of Investigations
Fiscal Year
1970
NTIS Accession No.
PB-196613
NTIS Price
A03
Identifying No.
RI 7459
NIOSH Division
TCRC;
Source Name
NTIS: PB 196 613
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