scholarly journals Extraction of Bivalent Manganese, Cobalt, Copper, Zinc, and Cadmium from Hydrochloric Acid Solutions by Long-chain Alkyl Quaternary Ammonium Chloride in Various Organic Solvents

1981 ◽  
Vol 54 (9) ◽  
pp. 2656-2661 ◽  
Author(s):  
Taichi Sato ◽  
Takato Nakamura ◽  
Teruo Fujimatsu
Keyword(s):  
Hydrochloric Acid ◽  
Organic Solvents ◽  
Ammonium Chloride ◽  
Quaternary Ammonium ◽  
Acid Solutions ◽  
Hydrochloric Acid Solutions ◽  
Copper Zinc ◽  
Quaternary Ammonium Chloride ◽  
Long Chain ◽  
Cobalt Copper

Extraction of indium(III) and antimony(III) from hydrochloric acid solutions by means of some neutral organophosphorus reagents

1981 ◽  
Vol 46 (8) ◽  
pp. 1906-1912 ◽  
Author(s):  
Oldřich Navrátil ◽  
Jiří Meindl ◽  
Jiří Kos
Keyword(s):  
Hydrochloric Acid ◽  
Organic Solvents ◽  
Organic Phase ◽  
Distribution Ratio ◽  
Acid Solutions ◽  
Chloro Complexes ◽  
Hydrochloric Acid Solutions

Distribution of indium(III) and antimony(III) was examined between hydrochloric acid solutions and solutions of tri-n-butylphosphate (TBP), trialkyl- and triarylphosphine oxides (TGPO, G = phenyl (P), n-butyl (B), or n-octyl (O)), or tetra-n-butylammonium chloride (R4NCl) in benzene or other organic solvents. The extractability of indium into benzene decreases in the order TOPO > TBPO > TBP ~ TPPO. In the case of TOPO and TBPO, there is a pronounced maximum on the plots of log DIn vs c(HCl) in the region of c(HCl) = 3-6 mol l-1; this applies also to other organic solvents. The composition of the species transferred into the organic phase is probably HInCl4.2 TGPO. The distribution ratio of antimony(III) attains considerable value even in the absence of the organophosphorus reagents, which indicates that Sb chloro complexes themselves are extracted.

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