Process for the preparation of phosphoric diesters

Details Process for the preparation of phosphoric diesters Process for the preparation of phosphoric diesters

C - Chemistry, Metallurgy

07

F

260/460.5

C07F 9/11 (2006.01) C07F 9/09 (2006.01) C08G 65/26 (2006.01) C08G 65/327 (2006.01)

Patent

CA 1200816

ABSTRACT OF THE DISCLOSURE An industrially advantageous process of preparing phosphoric acid diesters of high purity. To a mixture of phosphoric esters comprising phos- phoric monoesters and phosphoric diesters, a base is added in an amount of 0.5 - 1.3 equivalents based on phosphorus atoms which are contained in the mixture. The phosphoric monoesters are converted into orthophosphoric acid and organic hydroxyl compounds by hydrolysis, after which step the ortho- phosphoric acid and organic hydroxyl compounds are removed from the mixture.

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