Published March 2004 | Version v1
Book Metadata-only

LIX 860N-IC as an extractant for the extraction of HF(iv) from acidic chloride solutions

Creators

  • 1. Inorganic Chemistry Div., Indian Institute of Chemical Technlogy (CSIR), Hyderabad (India)
  • 2. Analytical Chemistry Div., Dept. of Chemistry, Sri Venkateswara University, Tirupati (India)

Description

LIX 860N-IC as an extractant for the extraction of tetravalent hafnium from acidic chloride solutions has been investigated. Increase of acid concentration decreases the percentage extraction of metal indicating the ion exchange type mechanism. The plot of log D vs log [extractant], M is linear with slope 1.8 indicating the association of two moles of extractant with the extracted metal species. Plot of log D vs log [H+] gave a straight line with a negative slope of ∼ 2 indicating the exchange of two moles of hydrogen ions for every mole of Hf(IV). Addition of sodium salts enhanced the percentage extraction of metal and follows the order NaSCN >NaCl >Na2SO4 >NaNO3. Stripping of metal from the loaded organic (L.O) with HCl, H2SO4 and extraction behavior of associated metals was studied. (author)

Part of:
National seminar on role of chemistry in the emerging areas of applied sciences and satellite seminar on analytical techniques for meeting the challenges of nuclear technology: invited lectures and technical papers

Additional details

Publishing Information

Publisher
Indian Society of Analytical Scientists
Imprint Place
Mumbai (India)
Imprint Title
National seminar on role of chemistry in the emerging areas of applied sciences and satellite seminar on analytical techniques for meeting the challenges of nuclear technology: invited lectures and technical papers
Imprint Pagination
652 p.
Journal Page Range
p. 120-122

Conference

Title
national seminar on role of chemistry in the emerging areas of applied sciences
Acronym
RCEAS-2004
Dates
15-17 Mar 2004
Place
Tirupati (India)

INIS

Country of Publication
India
Country of Input or Organization
India
INIS RN
35049199
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CHEMICAL REACTION KINETICS; HAFNIUM; INTERFERING ELEMENTS; KEROSENE; ORGANIC ION EXCHANGERS; OXIMES; QUANTITATIVE CHEMICAL ANALYSIS; SOLVENT EXTRACTION; ZIRCONIUM
Descriptors DEC
AMINES; CHEMICAL ANALYSIS; DISTILLATES; ELEMENTS; ENERGY SOURCES; EXTRACTION; FOSSIL FUELS; FUELS; GAS OILS; HYDROXY COMPOUNDS; ION EXCHANGE MATERIALS; KINETICS; LIQUID FUELS; MATERIALS; METALS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; PETROLEUM; PETROLEUM DISTILLATES; PETROLEUM FRACTIONS; PETROLEUM PRODUCTS; REACTION KINETICS; REFRACTORY METALS; SEPARATION PROCESSES; TRANSITION ELEMENTS

Optional Information

Notes
3 refs., 2 figs.