C - Chemistry – Metallurgy – 01 – G
Patent
C - Chemistry, Metallurgy
01
G
C01G 39/00 (2006.01) C01G 39/02 (2006.01) C01G 39/06 (2006.01) C22B 3/02 (2006.01) C22B 34/34 (2006.01)
Patent
CA 2449185
The process chemistry during the oxidation of molybdenite concentrates in an oxygen pressure leach can be controlled by regulating the amount of ferric iron and excess sulfuric acid recycled as autoclave discharge slurry or filtrate to the autoclave feed. A computer model capable of predicting the concentration of soluble molybdenum in the autoclave discharge and based on the concentrate and recycle analyses was developed.
L'invention concerne un procédé chimique s'exécutant pendant l'oxydation de concentrats de molybdénite dans un lixiviat sous pression d'oxygène. Ledit procédé permet de réguler de la quantité de fer ferrique et l'excès d'acide sulfurique recyclés sous forme de bouillie de décharge d'autoclave ou de filtrat vers l'alimentation de dudit autoclave. On a développé un modèle d'ordinateur capable de prévoir la concentration de molybdène soluble dans la décharge d'autoclave et en fonction de ce concentrat on élabore des analyses de recyclage.
Litz John E.
Queneau Paul B.
Wu Rong-Chien
Fetherstonhaugh & Co.
H.c. Starck Gmbh
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