公开(公告)号：US20180079734A1

公开(公告)日：2018-03-22

申请号：US15704386

申请日：2017-09-14

申请人： CELANESE INTERNATIONAL CORPORATION

发明人： Christoph MOLLENKOPF ,  Peter GROER ,  Arvind YADAV

IPC分类号： C07D291/06 ,  A23L27/30

CPC分类号： C07D291/06 ,  A23L27/30 ,  A23V2002/00

摘要： Compositions and processes for producing high purity acesulfame potassium are described. One process comprises the steps of providing a crude acesulfame potassium composition comprising acesulfame potassium and acetoacetamide, concentrating the crude acesulfame potassium composition to form a water stream and an intermediate acesulfame potassium composition comprising acesulfame potassium and less than 33 wppm acetoacetamide, and separating the intermediate acesulfame potassium composition to form the finished acesulfame potassium composition comprising acesulfame potassium and less than 33 wppm acetoacetamide. The concentrating step is conducted at a temperature below 90° C. and the separating step is conducted at a temperature at or below 35° C.