Inorganic perbromide compositions and methods of use thereof

C - Chemistry – Metallurgy – 22 – B

Patent

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C22B 3/06 (2006.01) C01B 7/09 (2006.01) C01B 9/04 (2006.01) C22B 11/00 (2006.01)

Patent

CA 2107895

2107895 9218422 PCTABS00016 This invention relates to compositions for the hydrometallurgical recovery of precious metals, and the use of certain of such compositions in other applications. The composition comprises: water, at least about 25 % by weight bromine, between about 4 % and about 30 % by weight hydrobromic acid, and between about 4 % and about 15 % by weight of a metal bromine. The composition comprising a molar excess of bromide ion over bromine of at least about 30 %. The composition has a pH of not greater than about 1Ø

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