Lixiviation Oxydante du Sulfure de Cuivre
✍ Scribed by J. Rygaert; J. Saelemaekers; A. van Tiggelen
- Book ID
- 101760319
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2010
- Weight
- 388 KB
- Volume
- 68
- Category
- Article
- ISSN
- 0037-9646
No coin nor oath required. For personal study only.
✦ Synopsis
La cinetique formelle de la reaction d'oxydation par l'oxygbne du sulfure de cuivre en suspension dam l'eau a kte determinke pour differentes conditions expkrimentales. En solution neutre la reaction est plus lente qu'en solution acide ou ammoniacale : la raison en est 1'6tape primaire de formation de soufre et de CuO. Ce dernier se dissout ensuite facilement dans l'acide ou 1 'ammoniaque.
L action fortement accbleratrice de I'acide chlorhydrique a Bt B mise en evidence.
L'action des sels ferriques a etB ktudike. (l) G.D. VAN ARSDALE, Hydrometallurgy of base metals, McGraw-
📜 SIMILAR VOLUMES
process• The two terms in (5) correspond to the scattering of electrons having a kinetic energy which is greater or smaller than ~m 0. Inserting the numerical values of the constants into ( ) and putting ~mo/k = O 0 and ~OJo/kT = Oo/T = we obtain I•20" 1013 (m--k\*~ -3/2 ¢e°0/T --l). ## Ppol O0
A new oxidative decarboxylation reaction converts carboxylic acids 1 or 1. (Z q OH) to the corresponding carbonyl compounds 3, in the presence of oxygen and catalytic amounts of copper(I), probably via transient coppernI1) carboxylates.