Li, Mingyang;Lian, De;Zhao, Fugang;Tong, Xiong;Wu, Chaoyang;Gao, Xiangpeng published 《Structure-activity of chelating depressants for chalcopyrite/pyrite separation: DFT study and flotation experiment》. The research results were published in《Physicochemical Problems of Mineral Processing》 in 2021.Category: amides-buliding-blocks The article conveys some information:
Three types of chelating depressants were studied for chalcopyrite/pyrite separation, including S-S, S-O, and O-O types, via d. functional theory calculations and microflotation. The calculation results indicate that the depressant’s chelating atoms have large coefficient and great activity according to the mol. frontier orbital (HOMO and LUMO) and the orbital coefficients For S-S type of depressant, S atom in both keto or enol forms won’t affect their HOMO and LUMO patterns and the orbital contributions. For S-O type, the presence of N atom in the ring structure of a mol. will increase the reactivity of O-Cu while weak S-Cu. For O-O type, the electron supply capacity of benzene ring is higher than strain chain, and atom N in strain chain increased their electron supply capacity. The microflotation results basically confirmed the prediction based on the calculation The simulation results demonstrate that the interaction of a depressant with metals and minerals are affected obviously by the spatial structure and electronic structure of an atom in its mol.N,2-Dihydroxybenzamide (cas: 89-73-6) were involved in the experimental procedure.
N,2-Dihydroxybenzamide(cas: 89-73-6) can be used:To prepare phenylboronic acid-based bioconjugates for chromatographic applications;As a ligand to synthesize Fe(III), Cu(II), Ni(II) and Zn(II) complexes.Category: amides-buliding-blocks
Reference:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics