Acesulfame potassium compositions and processes for producing same
US-10590096-B2 · Mar 17, 2020 · US
Acesulfame potassium compositions and processes for producing same
US10759771B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10759771-B2 |
| Application number | US-201916684710-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 15, 2019 |
| Priority date | Sep 21, 2016 |
| Publication date | Sep 1, 2020 |
| Grant date | Sep 1, 2020 |
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Abstract
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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.
First claim
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We claim: 1. An acesulfame potassium composition comprising acesulfame potassium that is formed by a process that includes neutralizing an acesulfame-H composition at a pH below 11 to form a crude potassium and treating the crude composition to form the acesulfame potassium composition, wherein the acesulfame composition comprises less than 25 wppm acetoacetamide-N-sulfonic acid and less than 25 wppm acetoacetamide. 2. The acesulfame potassium composition of claim 1 , further comprising 0.001 wppm to 5 wppm organic impurities and/or 0.001 wppm to 5 wppm of at least one heavy metal. 3. The acesulfame potassium composition of claim 2 , wherein the at least one heavy metal is selected from the group consisting of mercury, lead and mixtures thereof. 4. The acesulfame potassium composition of claim 3 , wherein the mercury is present in an amount of 1 wppb to 20 wppm. 5. The acesulfame potassium composition of claim 3 , wherein the lead is present in an amount of 1 wppb to 25 wppm. 6. The acesulfame potassium composition of claim 1 , wherein the acesulfame potassium composition comprises less than 20 wppm acetoacetamide. 7. The acesulfame potassium composition of claim 1 , wherein the acesulfame potassium composition comprises less than 15 wppm acetoacetamide. 8. The acesulfame potassium composition of claim 1 , wherein the acesulfame potassium composition comprises less than 10 wppm acetoacetamide-N-sulfonic acid. 9. The acesulfame potassium composition of claim 1 , wherein the acesulfame potassium composition comprises less than 10 wppm acetoacetamide-N-sulfonic acid and less than 10 wppm acetoacetamide. 10. The acesulfame potassium composition of claim 1 , wherein the neutralizing step occurs at a pH from 8 to 11. 11. The acesulfame potassium composition of claim 1 , wherein the treating step occurs at a temperature below 90° C.
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Classifications
- C07D291/06Primary
Six-membered rings · CPC title
Food compositions, function of food ingredients or processes for food or foodstuffs · CPC title
containing amino acids, nucleotides, peptides or derivatives · CPC title
Artificial sweetening agents · CPC title
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- What does patent US10759771B2 cover?
- 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 ace…
- Who is the assignee on this patent?
- Celanese Int Corp
- What technology area does this patent fall under?
- Primary CPC classification C07D291/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 01 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 11 related publications on this page (citations in our corpus or others sharing the same primary CPC).