Patent · US Active

Acesulfame potassium compositions and processes for producing same

US11718594B2 · kind B2 · utility

0Cited by

75References

17Claims

0Family size

Assignee

Celanese International Corporation · US

Inventors

Christoph Mollenkopf · Frankfurt am Main, DE
Peter Groer · Babenhausen, DE
Arvind Yadav

Key dates

Filing date	Mar 19, 2021
Grant date	Aug 8, 2023
Priority date	—
Expiry date	May 23, 2041

Classification

Technology area (CPC A)Human Necessities
CPC primaryA23V2002/00
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.