Purification of wet-process phosphoric acid using synthesized phosphonate compounds
Creators
- 1. Nuclear Chem. Dept ., Hot Labs. Center, AEA., Cairo (Egypt)
Description
Purification of wet-process phosphoric acid was studied by using the synthesized phosphonate chelating compound nitrilo trimethylene phosphonic acid (NTMP). The phosphonate compound was synthesized, characterized then used for purification of wet-process phosphoric acid. The formula of the synthesized phosphonate was confirmed using elemental analysis, FTIR spectrometry and NMR spectrometry, The application of NTMP for treatment of crude phosphoric acid decrease the hazardous metal content; iron by more than 75% ,chromium 20%, uranium by 20% and aluminum 20% by weight. Factors that could affect the removal of these metals from phosphoric acid using NTMP were studied as; time, temperature, P2O2 concentration and NTMP concentration. The solubility of NTMP was studied as a function of P2O5 concentration and temperature. The regeneration and recycling of the used NTMP were studied
Additional details
Publishing Information
- Journal Title
- Arab Journal of Nuclear Sciences and Applications
- Journal Volume
- 40
- Journal Issue
- 2
- Journal Page Range
- p. 19-29
- ISSN
- 1110-0451
- CODEN
- AJNADV
INIS
- Country of Publication
- Egypt
- Country of Input or Organization
- Egypt
- INIS RN
- 38077284
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ALUMINIUM; CHROMIUM; HAZARDOUS MATERIALS; INFRARED SPECTRA; IRON; METALS; NMR SPECTROMETERS; PHOSPHONATES; PHOSPHORIC ACID; PURIFICATION; REMOVAL; SYNTHESIS; URANIUM
- Descriptors DEC
- ACTINIDES; ELEMENTS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; MATERIALS; MEASURING INSTRUMENTS; METALS; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHORUS COMPOUNDS; SPECTRA; SPECTROMETERS; TRANSITION ELEMENTS