公开(公告)号：US10961264B2

公开(公告)日：2021-03-30

申请号：US15779306

申请日：2016-12-01

Applicant: BASF SE

Inventor： Tobias Lang ,  Zoltan Baan ,  Philip Muelheims ,  Anton Flajs ,  Hartmut Denecke

IPC: C07F9/22

Abstract: Provided herein is a process for isolating at least one (thio)phosphoric acid derivative, which has a boiling point of at least 70° C., from a product mixture including the at least one (thio)phosphoric acid derivative, at least one salt selected from ammonium salts and alkali metal chlorides, at least one polar solvent selected from the group consisting of ester solvents and ether solvents, and optionally at least one HCl scavenger; wherein the process is based on first dissolving the (thio)phosphoric acid derivative to be able to remove the at least one salt, and then causing solids formation of the (thio)phosphoric acid derivative.

公开(公告)号：US20180319826A1

公开(公告)日：2018-11-08

申请号：US15779306

申请日：2016-12-01

Applicant: BASF SE

Inventor： Tobias Lang ,  Zoltan Baan ,  Philip Muelheims ,  Anton Flajs ,  Hartmut Denecke

IPC: C07F9/22

CPC classification number: C07F9/224

Abstract: Provided herein is a process for isolating at least one (thio)phosphoric acid derivative, which has a boiling point of at least 70° C., from a product mixture including the at least one (thio)phosphoric acid derivative, at least one salt selected from ammonium salts and alkali metal chlorides, at least one polar solvent selected from the group consisting of ester solvents and ether solvents, and optionally at least one HCl scavenger; wherein the process is based on first dissolving the (thio)phosphoric acid derivative to be able to remove the at least one salt, and then causing solids formation of the (thio)phosphoric acid derivative.