C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 15/06 (2006.01)
Patent
CA 2711735
The industrial practice of converting copper matte comprises the oxidation of iron sulphide and subsequent oxidation of copper sulphide with the formation of copper blister, which is carried out discontinuously in Pierce-Smith or Hoboken converters. The present invention resolves said difficulty by making the industrial process a continuous operation. The method consists in the use of a continuous gravitational flow of copper matte to two reactors connected in series by a channel, in which oxidation and slagging of the iron in the copper matte is performed in the first reactor, followed by oxidation of the copper sulphide and formation of copper blister in the second reactor. Said intensive operation for converting liquid or liquid and solid copper matte is continuous and uses packed beds with a view to increasing the oxidation rate, in each reactor, with shorter operating times.
La práctica industrial de conversión de mata de cobre es la oxidación del sulfuro de hierro y posterior oxidación del sulfuro de cobre con formación de cobre blister, efectuada en convertidores Peirce-Smith u Hoboken en modo discontinuo. La presente invención resuelve dicha dificultad estableciendo continuidad operacional al proceso industrial. El método consiste en el uso de un flujo gravitacional continuo de mata de cobre a dos reactores conectados en serie por una canal, en donde la oxidación y escorifícación del hierro de la mata de cobre se efectúa en el primer reactor seguida por oxidación del sulfuro de cobre y formación de blister en el segundo reactor. Dicha operación intensiva de conversión de mata de cobre líquido ó liquido y sólido es continua utilizándose lechos empacados para incrementar la tasa de oxidación, en cada reactor, con menores tiempos de operación.
Balocchi Venturelli Ariel
Marin Alvarado Tanai Lerac
Ponce Herrera Ricardo
Riveros Urzua Gabriel Angel
Rojas Verazay Patricio
Benoit & Cote Associes Inc.
Empresa Nacional de Mineria
Universidad de Chile
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