NEW CHELATE FORMING BISQUINOLINE COMPOUNDS AND PROCESSES FOR RECOVERING METALS

摘要

Novel quinoline compounds having the general formula I, wherein R3, R4, R5 and R6, which may differ or be identical, are selected from the group consisting of hydrogen, R and OR, X is selected from the group consisting of O and S, and A is selected from the group consisting of (CH2)n, CH2CH2(OCH2CH2)p and CH2CH2OCHRCH2, wherein n=2-10, and p=1-3. R is a lipophilizing hydrocarbon which may be aliphatic or aromatic, straight or branched, saturated or unsaturated. The compounds of the formula I may be used as chelate forming agents.