C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 49/76 (2006.01) B01D 11/02 (2006.01) B01D 11/04 (2006.01) C07C 49/12 (2006.01) C07C 205/45 (2006.01) C07C 255/40 (2006.01) C22B 3/26 (2006.01) C22B 3/40 (2006.01) C22B 15/00 (2006.01) C22B 15/14 (2006.01)
Patent
CA 2243925
Novel modified and improved beta-diketones and their use in the extraction of copper from aqueous ammoniacal solutions containing copper values, resulting from commercial processes, including, but not limited to, leaching of copper containing ores, such as sulfidic ores, or concentrates resulting from flotation of such sulfidic ores. The novel diketones are those highly sterically hindered, which may be represented by the formula I or II: (see fig. I) (see fig. II) The preferred beta-diketones of Formula [II] are selected from the group consisting of neo-alkyl beta-diketones, such as, 1-phenyl-3-neoalkyl-1,3 propanedione in which the neoalkyl group is selected from neohexyl, neoheptyl, neooctyl, neononyl, or neodecyl.
Kang Sang I.
Kordosky Gary A.
Martin Kevin V.
Mattison Phillip L.
Virnig Michael J.
Henkel Corporation
Kang Sang I.
Kordosky Gary A.
Martin Kevin V.
Mattison Phillip L.
LandOfFree
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