Recovery platinum group metals from oxides ores

Details Recovery platinum group metals from oxides ores Recovery platinum group metals from oxides ores

1992-06-10

1994-03-08

Lewis, Michael

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Platinum group metal

423 27, C01G 5500, C22B 1100

Patent

active

052924904

ABSTRACT:
A method is provided for recovering at least one platinum group metal from an ore containing the same. The method comprises reducing the particle size of the ore to provide the platinum group metal in a leachable condition following which the ore is subjected to leaching with a sulfuric acid solution maintained at a pH of less than 1 during leaching. The solution contains an amount of a soluble bromide compound at least sufficient to complex the platinum group metal while maintaining an amount of an oxidizing agent dissolved in the solutions at least sufficient to maintain the platinum group metal in an ionic form conducive to forming a soluble bromide complex, thereby dissolving substantial amounts of the platinum group metal.

REFERENCES:
patent: 732708 (1903-07-01), Cassel
patent: 2283198 (1942-05-01), Fink et al.
patent: 4571263 (1986-02-01), Weir et al.
patent: 4936910 (1990-06-01), Dadgar et al.

Affiliated with

Also associated with

Rating

Recovery platinum group metals from oxides ores does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recovery platinum group metals from oxides ores, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recovery platinum group metals from oxides ores will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-151413