Nghiên cứu hiệu ứng tăng cường chiết của các nguyên tố đất hiếm nhẹ (La, Nd, Sm, Eu) bằng hỗn hợp triphenylphotphin oxit (TPPO) và axit 2-etyl hexyl 2-etyl hexyl photphonic (PC88A) từ dung dịch axit nitric

Abstract

The extraction of rare earth elements (La, Nd, Sm, Eu) by mixture of triphenylphosphin oxide and 2-ethylhexyl 2-ethylhexyl phosphonic acid from nitric acid solutions has been developed. The influence of various factors such as the nitric acid concentrations, triphenylphosphin oxide/2-ethylhexyl 2-ethylhexyl phosphonic acid ratio,... on the S_k has been reported.