Extraction of Thorium(IV) with N-Methyl-N,N,N-trioctylammonium Chloride from Monazite Acidic Leach Liquor and Its Use for Spectrophotometric Determination

Highly proficient extraction separation of thorium(IV) from sulfuric acid solution using N-n-decylaniline: real sample analysis

“…Apart from that the extraction study of thorium(IV) was also investigated by several extractants like di-(2-ethylhexyl) 2-ethylhexyl phosphonate [9] bis(2,4,4-trimethylpentyl) phosphinic acid (Cyanex 272) [10]. Amberlite LA-1 or LA-2 [11], N-methyl-N,N,Ntrioctylammonium chloride [12] mixture of N-n-octylaniline and trioctylamine [13] are successfully employed for the extraction of thorium(IV). Extraction of thorium(IV) was done from 2-octylaminopridine [14] in kerosene along with various organophosphorus compounds like TBP (30%) [15], Cyanex302 [16], triphenylphosphine oxide, di-isodecyl phosphoric acid [17][18][19][20] as well as Di 1(methyl-heptyl) methyl phosphonate [21], The extraction of Th(IV) was investigated by using di(1-methyl-heptyl) methyl phosphonate (DMHMP) in kerosene as an extractant [22].…”