[EN] PROCESS FOR ISOLATING A (THIO)PHOSPHORIC ACID DERIVATIVE<br/>[FR] PROCÉDÉ POUR ISOLER UN DÉRIVÉ D'ACIDE (THIO)PHOSPHORIQUE
申请人:BASF SE
公开号:WO2017093925A1
公开(公告)日:2017-06-08
The present invention relates to a process for isolating at last one (thio)phosphoric acid derivative (1a), which has a boiling point of at least 70 °C, from a product mixture (1) comprising as component (1a) the at least one (thio)phosphoric acid derivative, as component (1b) at least one salt selected from (b1) ammonium salts and (b2) alkali metal chlorides, as component (1c) at least one polar solvent, which is selected from the group consisting of ester solvents and ether solvents, and optionally as component (1d) at least one HCl scavenger; wherein the process is based on the concept of first dissolving the (thio)phosphoric acid derivative (1a) to be able to remove the at least one salt, and then causing solids formation of the (thio)phosphoric acid derivative (1a).
本发明涉及一种从包含至少一种(硫)磷酸衍生物(1a)的产品混合物(1)中分离至少一种(硫)磷酸衍生物(1a)的过程,其沸点至少为70°C,所述产品混合物(1)包括组分(1a)所述至少一种(硫)磷酸衍生物,组分(1b)至少一种选自(b1)铵盐和(b2)碱金属氯化物的盐,组分(1c)至少一种极性溶剂,所选自酯溶剂和醚溶剂的群体,以及可选地组分(1d)至少一种HCl清除剂;其中该过程基于首先溶解(1a)以能够去除至少一种盐,然后造成(1a)的固体形成的概念。