Patent · US Active

Acesulfame potassium compositions and processes for producing same

US10759770B2 · kind B2 · utility

5Cited by

30References

11Claims

0Family size

Assignee

Celanese International Corporation · US

Inventors

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

Key dates

Filing date	Nov 15, 2019
Grant date	Sep 1, 2020
Priority date	—
Expiry date	Nov 15, 2039

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.