主权项 |
1. The mining collector of the following structure:where A and D are independently chosen from —H, —CH3, —CH2CH3, —CH2CH2CH3, —CH2OH, E is alkyl, saturated or unsaturated, branched or linear, with from 1-22 carbons, J is —NO2 or —NH2, G is chosen from —CH2CH2CH2NH2 or —CH2CH2CN. |