The solvent extraction of boron with synthesized aliphatic 1,3-diols
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Tarih
2004
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A variety of aliphatic 1,3-diols (4a-c, 5a-c, 6a-c) was synthesized from beta-hydroxy carbonyl compounds (1-3) for potential use in the solvent extraction of boron. Primary-secondary and primary-tertiary alcohol structures of 1,3-diols substituted with isopropyl, isobutyl, and isopentyl groups have been demonstrated to be very efficient for the solvent extraction of boric acid from aqueous solutions. The extraction ability of 2,2,5-trimethyl-1,3-hexanediol (5b) was investigated as a function of 5b concentration, solution pH, solvent properties, and stripping conditions. Extraction efficiency increased with increasing concentration of 5b, and the best extraction of boron (96.8%) was found to be at an equilibrium pH of 2 with 0.5 M of 5b. Chloroform, toluene, chlorobenzene, 2-octanol, and n-amyl alcohol were found to be suitable solvents for the solvent extraction of boron. The boron complex can be recovered from the organic phase by treatment with an aqueous solution of sodium hydroxide. The highest ratio (96.7%) of boron was recovered by 0.1 M of sodium hydroxide solution.
Açıklama
Anahtar Kelimeler
1,3-Diols, Boron Determination, Solvent Extraction Of Boron, Stripping Of Boron, Beta-Hydroxyl Carbonyl Compounds
Kaynak
Solvent Extraction and Ion Exchange
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
22
Sayı
6
