Industrial Inorganic Processes

Blumberg, Ruth; Gonen, D.; Meyer, David S.

doi:10.1016/b978-0-08-015682-8.50007-9

Cited by 14 publications

(12 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is a nontoxic and relatively weak triprotic acid, which has a crucial role in chemical, biological, and phosphate fertilizer industries. PA is applied as a chemical intermediate or additive in the production of detergents, agricultural feeds, activated carbon, polishes, soaps, and phosphate fuel cells. − The highly pure or food grade PA is largely used in food, beverage, dental, and pharmaceutical industries, where the high purity is required. It is worth to mention that the majority of PA is used to produce phosphate fertilizers.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Liquid–Liquid Equilibria for Aqueous Mixtures of Phosphoric Acid with Two Structurally Similar Carbonyl Compounds: Measurement and Correlation

2020

View full text Add to dashboard Cite

This comparative study demonstrates the experimental liquid–liquid equilibrium (LLE) data for the aqueous mixtures of phosphoric acid with the two structurally similar carbonyl compounds (i.e., dipropyl ketone and ethyl butyrate) at T = 298.2, 308.2, and 318.2 K and p = 101.3 kPa. Despite the close structural similarity between them, however, they belong to different chemical classifications. Thus, the extractive features of the selected carbonyl solvents were analyzed and compared. Both the studied systems were displayed as Treybal’s type-1 liquid–liquid phase diagrams. The biphasic region was found to be larger for the system containing a less polar solvent (ethyl butyrate), but the acid distribution coefficient and selectivity values were almost similar for both the carbonyl solvents. The measured tie-line data were satisfactorily fitted by the UNIQUAC activity coefficient model. Values of the model binary interaction parameters were optimized using the MATLAB fminsearch function that applies the Nelder–Mead algorithm. The reliability of the experimental tie-line data was determined through the Othmer–Tobias plot. The LLE data and selectivities specify that both the carbonyl solvents were found to be promising extractants for the separation of phosphoric acid from its dilute aqueous solutions.

show abstract

Section: Introductionmentioning

confidence: 99%

Comparative Study of Liquid–Liquid Equilibria for Aqueous Mixtures of Phosphoric Acid with Two Structurally Similar Carbonyl Compounds: Measurement and Correlation

2020

View full text Add to dashboard Cite

show abstract

“…On the other hand, the separation step typically requires the coalescence of the droplets to allow for sufficient separation. These different requirements can be considered somehow contradictive, as coalescence becomes more difficult and time-intensive with smaller droplet sizes. , …”

Section: Introductionmentioning

confidence: 99%

Continuous Flow Synthesis of Methyl Oximino Acetoacetate: Accessing Greener Purification Methods with Inline Liquid–Liquid Extraction and Membrane Separation Technology

Lebl

Murray²,

Adamo³

et al. 2019

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

A greener continuous flow procedure for the synthesis and purification of methyl oximino acetoacetate, a key intermediate for the generation of several heterocyclic scaffolds, has been established. The synthesis is based on the continuous flow generation of nitrous acid to effect the oximation reaction. Neat reactants and a nearly saturated aqueous NaNO 2 solution have provided a methodology with a very low solvent consumption. The extraction of the oxime from the reaction mixture, a challenging process due to the presence of acetic acid in the solution, has been achieved by liquid−liquid extraction in a microreactor and a continuous multistage phase separation platform. Fine-tuning of the output pH by inline monitoring using a flow cell has enabled optimal extraction performance as well as the minimization of the acetic acid residue in the organic phase and the use of very low amounts of extraction solvents. An excellent value for the process mass intensity of 11.1 has been achieved. Moreover, the lack of acetic acid in the product avoids an additional and energy-consuming distillation step.

show abstract

“…The pure phosphoric acid is extensively used as an additive in the food industry. Therefore, the efficient separation of phosphoric acid from aqueous solutions, by solvent extraction technique, is of considerable economic importance in the chemical industry [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

(Liquid+liquid) equilibria in ternary aqueous mixtures of phosphoric acid with organic solvents at T=298.2K

Ghanadzadeh

Aghajani

et al. 2010

The Journal of Chemical Thermodynamics

View full text Add to dashboard Cite

Industrial Inorganic Processes

Cited by 14 publications

References 11 publications

Comparative Study of Liquid–Liquid Equilibria for Aqueous Mixtures of Phosphoric Acid with Two Structurally Similar Carbonyl Compounds: Measurement and Correlation

Comparative Study of Liquid–Liquid Equilibria for Aqueous Mixtures of Phosphoric Acid with Two Structurally Similar Carbonyl Compounds: Measurement and Correlation

Continuous Flow Synthesis of Methyl Oximino Acetoacetate: Accessing Greener Purification Methods with Inline Liquid–Liquid Extraction and Membrane Separation Technology

(Liquid+liquid) equilibria in ternary aqueous mixtures of phosphoric acid with organic solvents at T=298.2K

Contact Info

Product

Resources

About