Aminotrimethylene Phosphonic Acid and Sodium Ethyl Xanthate for Purification of Stripped Phosphoric Acid Produced from Commercial Acid by Solvent Extraction - Egyptian Knowledge Bank

1110

Aminotrimethylene Phosphonic Acid and Sodium Ethyl Xanthate for Purification of Stripped Phosphoric Acid Produced from Commercial Acid by Solvent Extraction

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Last updated: 01 Jan 2025

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Abstract

PHOSPHORIC acid is the second most produced acid after …….H2SO4. It was used as a raw material for the production of detergents, food products, and alimentary supplies for cattle, toothpastes and fertilizers. High grade phosphoric acid was obtained using liquid-liquid extraction with aliphatic alcohols to separate metal and fluoride ion impurities in the aqueous phase. The influence of alcohol concentration, organic/aqueous phase ratio, temperature, shaking time and phosphoric acid concentration on P2O5 extraction was studied. N-Nonanol proved to be the most efficient and selective alcohol and the temperature had a slight positive effect and the extraction was enhanced by increasing P2O5 and with the increase of organic/aqueous phase ratio. The optimum organic/aqueous phase ratio was determined to be 2.0. Stripping was also investigated, the purification of stripped phosphoric acid was achieved using sodium ethyl xanthate where 95.1% of iron was removed, also aminotrimethylene phosphonic acid can be successfully used for decreasing iron content to 190.9 ppm and to produce highly pure grade phosphoric acid.

DOI

10.21608/ejchem.2013.1110

Keywords

Aminotrimethylene phosphonic acid, Sodium ethyl xanthate, Stripped phosphoric acid solution and Solvent extraction technique

Volume

Article Issue

Related Issue

266

Issue Date

2013-06-01

Receive Date

2013-08-27

Publish Date

2013-06-30

Page Start

225

Page End

240

Print ISSN

0449-2285

Online ISSN

2357-0245

Article File

EJCHEM_Volume 56_Issue 3_Pages 225-240.pdf

PDF . 301.3kB

Link

https://ejchem.journals.ekb.eg/article_1110.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=1110

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Type Code

292

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

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