Process for obtaining pure orthophosphoric acid from superphosph

Chemistry of inorganic compounds – Phosphorus or compound thereof – Oxygen containing

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423321R, C01B 2516

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active

040839346

ABSTRACT:
A process for obtaining pure orthophosphoric acid from superphosphoric acid is provided comprising:

REFERENCES:
patent: 1283398 (1918-10-01), Carothers et al.
patent: 1451786 (1923-04-01), Ross et al.
patent: 2169588 (1939-08-01), Malovan
patent: 3284171 (1966-11-01), Harper
patent: 3853486 (1974-12-01), Heymer et al.
Canadian Journal of Chemistry-vol. 34-1956-Compositioned Strong Phosphoric Adids-pp. 785 to 797.
Agricultural & Food Chemistry-vol. 22, #6-p. 1099t-Kim et al.
Ind. Eng. Chem., Process Des. Develop.
Phosphoric Acid-Slack-vol. 1-pt. 1-pp. 148, 149.
Ind. & Eng. Chem.-vol. 17, #10-pp. 1081 to 1083-Ross et al.

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