<abstract xmlns="http://www.w3.org/1999/xhtml">The polyphosphoric acids (PPA) were synthesized in a cascade reactors system from P2O5 obtained from the burning of Kazakh phosphorus. Presented system provides guidelines for the PPA production process using phosphoric acids only at concentrations above 100% (in conversion to H3PO4). Polyphosphoric acids are processed in a cascade reactors system, where the in 1st concentration of PPA is increased by addition of P2O5, while in the 2nd reactor PPA is diluted with the use of 85% phosphoric acid. Produced PPA can be obtained in the 100–118% range and is characterized by high chemical purity due to the reduction of the corrosivity of the reaction, which results in very low content of iron (below 2 ppm Fe).</abstract>

The polyphosphoric acids (PPA) were synthesized in a cascade reactors system from P2O5 obtained from the burning of Kazakh phosphorus. Presented system provides guidelines for the PPA production process using phosphoric acids only at concentrations above 100% (in conversion to H3PO4). Polyphosphoric acids are processed in a cascade reactors system, where the in 1st concentration of PPA is increased by addition of P2O5, while in the 2nd reactor PPA is diluted with the use of 85% phosphoric acid. Produced PPA can be obtained in the 100–118% range and is characterized by high chemical purity due to the reduction of the corrosivity of the reaction, which results in very low content of iron (below 2 ppm Fe).

Phosphorus pentoxide from Kazakhstan phosphorus as a base for production of polyphosphoric acids (PPA) in the cascade reactors system

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The polyphosphoric acids (PPA) were synthesized in a cascade reactors system from P2O5 obtained from the burning of Kazakh phosphorus. Presented system...

Phosphorus pentoxide from Kazakhstan phosphorus as a base for production of polyphosphoric acids (PPA) in the cascade reactors system

Published Online: Mar 16, 2019

Page range: 24 - 26

DOI: https://doi.org/10.2478/pjct-2019-0005

Keywords
phosphorus pentoxide, PPA, polyphosphoric acid, cascade reactors, kazakhstan phosphorus

© 2019 Damian Milde et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Phosphorus pentoxide from Kazakhstan phosphorus as a base for production of polyphosphoric acids (PPA) in the cascade reactors system

Published Online: Mar 16, 2019

Page range: 24 - 26

DOI: https://doi.org/10.2478/pjct-2019-0005

Keywordsphosphorus pentoxide, PPA, polyphosphoric acid, cascade reactors, kazakhstan phosphorus

© 2019 Damian Milde et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
phosphorus pentoxide, PPA, polyphosphoric acid, cascade reactors, kazakhstan phosphorus