A Study on DSLM Transporting the Rare Earth Metal La (III) with a Carrier of PC-88A

Table 3

Effect of volume ratio of membrane solution and HCl solution on transport of rare earth.

rare earth metal	(min) Migration Time (min)	item	Data results
La(III)	125	volume ratio	10:50	20:40	30:30	40:20	50:10
		−ln/c0	0.660	0.814	1.39	1.41	1.46
		(m/s)	5.8710^−6	7.2410^−6	1.2410^−5	1.2610^−5	1.3010^−5

Note. Ct and C0 express concentration at time of t and the initial concentration of rare earth metal, respectively, unit: mol/L; Pc expresses permeability coefficient, the unit: m/s.