08029751 cites 278 patents.

The present invention is directed to a precious metal recovery process in which basic ferric sulphates and/or jarosites are controlled by a number of mechanisms, including control of the oxidation reaction conditions in the first autoclave compartment, hot curing of the autoclave discharge slurry, and/or contacting of the autoclave feed slurry with the hot cured discharge liquid.

Title
Reduction of lime consumption when treating refractory gold ores or concentrates
Application Number
12/578330
Publication Number
8029751 (B2)
Application Date
October 13, 2009
Publication Date
October 4, 2011
Inventor
Cesare Giosue Ferron
Peterborough
CA
Christopher Andrew Fleming
Omemee
CA
Jinxing Ji
Burnaby
CA
James A King
West Vancouver
CA
Agent
Sheridan Ross P C
Assignee
Placer Dome Technical Services
CA
IPC
C22B 15/00
C22B 11/08
C01G 3/00
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