Effects of organic and aqueous phase composition on uranium extracion from phosphoric acid with octylphenyl acid phosphate

1982 ◽  
Vol 21 (2) ◽  
pp. 301-308 ◽  
Author(s):  
Wesley D. Arnold ◽  
Donna R. McKamey ◽  
Charles F. Baes
Keyword(s):  
Phase Composition ◽  
Phosphoric Acid ◽  
Aqueous Phase ◽  
Acid Phosphate

Biomethane Production from Pyrolytic Aqueous Phase: Biomass Acid Washing and Condensation Temperature Effect on the Bio-oil and Aqueous Phase Composition

2020 ◽  
Vol 13 (3) ◽  
pp. 878-886
Author(s):  
Shi-Shen Liaw ◽  
Victor Haber Perez ◽  
Roel J.M. Westerhof ◽  
Geraldo Ferreira David ◽  
Craig Frear ◽  
...  
Keyword(s):  
Phase Composition ◽  
Temperature Effect ◽  
Aqueous Phase ◽  
Condensation Temperature ◽  
Acid Washing ◽  
Bio Oil ◽  
Biomethane Production

scholarly journals The synthesis of tripolyphosphate using a one-stage method and a laboratory rotary kiln

2014 ◽  
Vol 16 (1) ◽  
pp. 36-40 ◽  
Author(s):  
Zygmunt Kowalski ◽  
Agnieszka Makara
Keyword(s):  
Phase Composition ◽  
Phosphoric Acid ◽  
Phase I ◽  
Rotary Kiln ◽  
Chromatographic Analysis ◽  
Sodium Tripolyphosphate ◽  
One Stage ◽  
Wet Processing ◽  
The One ◽  
Soda Ash

Abstract In the study, sodium tripolyphosphate (STPP) was obtained according to the one-stage method. Batch mixes with varied degrees of soda ash neutralization were produced using thermal or wet processing phosphoric acid and/ or recycled STPP calcined in a laboratory rotary kiln. Chromatographic analysis of the phosphate forms showed that products containing as much as 94.73% of a single component were produced. At STPP recycling rates of 2.5 and 5, products with a low bulk density ranging between 0.437-0.547 kg/dm3 were obtained. The recycling of STPP reduces the insoluble substance content, which affects the properties of the product. The phase composition of the products largely depends on the type of recycled phase of sodium tripolyphosphate (phase I and/or phase II) and the calcining temperature.

Use of combined solvent extraction-electrodeposition techniques to uranium and thorium isotopes analysis in industrial phosphoric acid, phosphate and phosphogypsum by alpha-particle spectrometry

2003 ◽  
Vol 91 (1) ◽  
Author(s):  
R. Zarki ◽  
A. Elyahyaoui ◽  
A. Chiadli
Keyword(s):  
Solvent Extraction ◽  
Phosphoric Acid ◽  
Isotopic Composition ◽  
Alpha Particle ◽  
Phosphate Rock ◽  
Liquid Extraction ◽  
Acid Phosphate ◽  
Liquid Liquid Extraction ◽  
Thorium Isotopes

SummaryA method combining liquid-liquid extraction and electrodeposition procedures is carried out to determine isotopic composition of uranium and thorium in technical wet phosphoric acid, phosphate rock and phosphogypsum leachates, by

Aqueous-Phase Hydrodeoxygenation of Biomass Sugar Alcohol into Renewable Alkanes over a Carbon-Supported Ruthenium with Phosphoric Acid Catalytic System

ChemCatChem ◽  
2017 ◽  
Vol 9 (5) ◽  
pp. 774-781 ◽  
Author(s):  
Yujing Weng ◽  
Tiejun Wang ◽  
Songbai Qiu ◽  
Chenguang Wang ◽  
Longlong Ma ◽  
...  
Keyword(s):  
Phosphoric Acid ◽  
Aqueous Phase ◽  
Catalytic System ◽  
Sugar Alcohol

scholarly journals Adsorption of lanthanides(III) from aqueous solutions by fullerene black modified with di(2-ethylhexyl)phosphoric acid

2009 ◽  
Vol 7 (1) ◽  
pp. 54-58 ◽  
Author(s):  
A. Turanov ◽  
V. Karandashevb
Keyword(s):  
Synergistic Effect ◽  
Phosphoric Acid ◽  
Aqueous Solutions ◽  
Aqueous Phase ◽  
Atomic Number ◽  
Electric Arc ◽  
Analysis Method ◽  
Sorbent Phase ◽  
Fullerene Black ◽  
Slope Analysis

AbstractFullerene black (FB) - a product of electric arc graphite vaporization after extraction of fullerenes - was modified with the di(2-ethylhexyl)phosphoric acid (D2EHPA). The distribution of D2EHPA between FB and aqueous HNO3 solutions has been studied. The effect of HNO3 concentration in the aqueous phase and that of D2EHPA concentration in the sorbent phase on the adsorption of microquantities of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y nitrates from HNO3 solutions by D2EHPA-modified FB are considered. The stoichiometry of the sorbed complexes has been determined by the slope analysis method. The efficiency of lanthanides’ adsorption increases with an increase in the element atomic number. A considerable synergistic effect has been observed upon the addition of the neutral bidentate tetraphenylmethylenediphosphine dioxide ligand to D2EHPA in the sorbent phase.

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