C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/289.8
C07D 215/26 (2006.01)
Patent
CA 1045141
SUBSTITUTED 8-HYDROXYQUINOLINES AND PROCESS FOR THE PREPARATION THEREOF ABSTRACT OF THE DISCLOSURE A class of hydrocarbyl substituted 8-hydroxyquinolines wherein the indicated substituent arises through the direct alkylation of said quinolinol with a ketone obtained by condensing methyl ketone with a hindered aldehyde. These alkylates are useful metal collectors in hydrometallurgical extraction processes designed for the recovery of metal values from dilute aqueous solutions thereof.
270276
Richards Harvey J.
Trivedi Bhupendra C.
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