Patent · US Active

Acesulfame potassium compositions and processes for producing same

US10759771B2 · 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 fieldFood chemistry
WIPO sectorChemistry

Abstract

Compositions and processes for producing high purity acesulfame potassium are described. One process comprises the steps of forming a cyclic sulfur trioxide adduct; hydrolyzing the cyclic sulfur trioxide adduct to form an acesulfame-H composition comprising acesulfame-H; neutralizing the acesulfame-H in the acesulfame-H composition to form a crude acesulfame potassium composition comprising acesulfame potassium and less than 2800 wppm acetoacetamide-N-sulfonic acid, wherein the neutralizing step is conducted or maintained at a pH at or below 11.0; and treating the crude acesulfame potassium composition to form the finished acesulfame potassium composition comprising acesulfame potassium and less than 37 wppm acetoacetamide-N-sulfonic acid.

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