Wet-Process Phosphoric Acid. Foam Distribution of Sulfuric Acid

Davenport, J. E.; Getsinger, J. G.; Carroll, F. Ivy

doi:10.1021/i260013a019

Cited by 6 publications

(4 citation statements)

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“…Figure 8 shows the variations in β 4 1 with ω 1 at various ω 2 and ω 3 . The value of D 1 is larger than that of D 4 , especially when ω 1 is low, as shown by the data in Table 2, hence the change trend of β 4 1 is essentially identical to D 1 .…”

Section: Resultsmentioning

confidence: 99%

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Liquid–Liquid Equilibria of the System Nitric Acid + Phosphoric Acid + Calcium Nitrate + Water + Tri-n-Octylamine at 298.15 K

Cao

Dong

et al. 2023

J. Chem. Eng. Data

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Liquid−liquid equilibrium (LLE) data of the system nitric acid + phosphoric acid + calcium nitrate + water + tri-n-octylamine (TOA) were measured at 298.15 K and atmospheric pressure. The distribution coefficients of nitric acid, phosphoric acid, calcium nitrate, and water and the separation factors of nitric acid against phosphoric acid, nitric acid against calcium nitrate, and nitric acid against the water were calculated. Based on these data, the capability and selectivity of TOA for extracting nitric acid in this system were evaluated. The experimental results were used to obtain binary interaction parameters and pair parameters as correlated by the electrolyte non-random two-liquid (eNRTL) model. The eNRTL model was shown to be suitable for predicting the LLE data of this system, with a rootmean-square deviation of just 1.17%.

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Section: Resultsmentioning

confidence: 99%

“…The production technologies of wet-process phosphoric acid (WPA) can be divided into sulfuric acid, , hydrochloric acid, and nitric acid method . Each method has its own set of advantages and drawbacks.…”

Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibria of the System Nitric Acid + Phosphoric Acid + Calcium Nitrate + Water + Tri-n-Octylamine at 298.15 K

Cao

Dong

et al. 2023

J. Chem. Eng. Data

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“…A literature survey has shown that this has not been done for this particular process nor for the other several kinds of the processes (Slack, 1968;Scott et al, 1974) producing the same product. Only a few authors-among them Hatfield et al (1959), Davenport et al (1965), Patterson et al (1967), andLibhaber et al (1974)-have tackled the problem of studying the influence of some variables on the performance of both conventional and unconventional wet processes, but they have generally utilized experimental data from pilot plants. Therefore, their results are difficult to extrapolate to different situations.…”

Section: Introductionmentioning

confidence: 99%

Analysis, Simulation, and Optimization of the Hemihydrate Process for the Production of Phosphoric Acid from Calcareous Phosphorites

Gioia¹,

Mura²,

Viola³

1977

Ind. Eng. Chem. Proc. Des. Dev.

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In this paper it is shown how the methods used in chemical engineering for the analysis and simulation of processes may be applied to explore the possibilities of an economical utilization of low grade calcareous phosphate rocks for the production of phosphoric acid. Attention has been focused on the hemihydrate process for which the necessary fundamental experimental data, although fragmentary, are available in literature. The results of the analysis have shown that a reasonable description of the process at hand is possible by the proposed method. However, the basic phenomena which take place must be understood and a knowledge of a few specific parameters is essential. The mathematical model resulting from the analysis has enabled fixed and operating costs of the process and their dependence on the variables of interest to be established. The characterization of the "optimal configuration" of the plant is then dealt with. The results of the optimization may be used, among other things, for pricing low grade calcareous phosphorites.

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“…The development of wet-process phosphoric acid manufacture is closely associated with the production of chemical fertilizers. Numerous wet-processes (10,17,31) have been develop ed over a long period of time. From a chemical point of view they have the common feature that phosphate rock is treated with sulfuric acid resulting in the liberation of phosphoric acid and formation of calcium sulfate in one or more of its crystal forms, followed by separation of the solids from the liquid.…”

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confidence: 99%

Calcium sulfate crystallization in phosphoric acid

Amin

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Wet-Process Phosphoric Acid. Foam Distribution of Sulfuric Acid

Cited by 6 publications

References 0 publications

Liquid–Liquid Equilibria of the System Nitric Acid + Phosphoric Acid + Calcium Nitrate + Water + Tri-n-Octylamine at 298.15 K

Liquid–Liquid Equilibria of the System Nitric Acid + Phosphoric Acid + Calcium Nitrate + Water + Tri-n-Octylamine at 298.15 K

Analysis, Simulation, and Optimization of the Hemihydrate Process for the Production of Phosphoric Acid from Calcareous Phosphorites

Calcium sulfate crystallization in phosphoric acid

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