Solvent extraction of chromium(VI) from hydrochloric acid solution with trialkylamine/kerosene

Li, Yingxue; Cui, Chongwei; Ren, Xin; Li, Yan

doi:10.1080/19443994.2013.878670

Cited by 12 publications

(1 citation statement)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The gradient and nodal increment are 5.39 × 10 12 and 5.12 × 10 4 . Transferring layer thickness d f , calculated by the transferring constant of Cd(II) in the liquid that is 6.92 × 10 −10 m 2 /s [ 38 ], is 1.08 × 10 −4 m. The K 1 , which can be ascertained by dislodging experiment, is 2.7 × 10 −8 . Then, the D o of the transferring constant in the sheeting, gotten by combined Equations (13) and (14), is 1.31 × 10 −7 m 2 /s.…”

Section: Dynamic Analysismentioning

confidence: 99%

Diphasic Sheeting Device with Cyanex-301 for Dislodging Feature of Divalent Cadmium from Industrial Effluent

Pei

Wang

2022

IJERPH

View full text Add to dashboard Cite

A novel diphasic sheeting device (DSD) including complemental feeding stage and complemental disintegrating stage for dislodging features of Cd(II), was investigated. The complemental feeding stage included feeding liquor and Bis(2,4,4 trimethylamyl) dithiophosphonic acid (Cyanex-301) as the carrier in petroleum, and the complemental disintegrating stage included Cyanex-301 as the carrier in petroleum and hydrochloric acid as the disintegrating reagent. The impacts of volumetric ratio of sheeting liquor and feeding liquor(S/F), initial molarity of Cd(II) and ion intensity of the feeding liquor, pH, volumetric ratio of sheeting liquor and disintegrating reagent (S/D), molarity of hydrochloric acid liquor, Cyanex-301 molarity in the complemental disintegrating stage on dislodging of Cd(II), the virtues of DSD compared to the traditional sheeting device, the constancy of system, the reuse of sheeting liquor, and the retention of the sheeting stage were also investigated. Experimental results illustrated that the optimum dislodging conditions of Cd(II) were achieved as hydrochloric acid molarity was 4.00 mol/L, Cyanex-301 molarity was 0.150 mol/L, and S/D was 1:1 in the complemental disintegrating stage, S/F was 1:10, and pH was 5.00 in the complemental feeding stage. The ion intensity of the complemental feeding stage had no distinct impact on the dislodging feature of Cd(II). When initial Cd(II) molarity was 3.20 × 10−4 mol/L, the Cd(II) dislodging percentage was up to 92.9% in 210 min. The dynamic formula was inferred on the basis of the theorem of mass transferring and the interfacial chemistry.

show abstract

Section: Dynamic Analysismentioning

confidence: 99%