Reductive preparation of tertiary dimethylamines from nitriles
US-2016368856-A1 · Dec 22, 2016 · US
Process for preparing EDDN and/or EDMN by reacting EDFA and/or EDMFA with HCN
US8946459B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8946459-B2 |
| Application number | US-201213598685-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 30, 2012 |
| Priority date | Aug 31, 2011 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
Official abstract text for this publication.
A process for reacting ethylenediamine-formaldehyde adduct (EDFA) and/or ethylene-diamine-monoformaldehyde adduct (EDMFA) with hydrogen cyanide (HCN) in a reactor with limited backmixing at a temperature in the range from 20 to 120° C., wherein the residence time in the reactor is 300 seconds or less.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process which comprises reacting ethylenediamine-formaldehyde adduct (EDFA) and/or ethylenediamine-monoformaldehyde adduct (EDMFA) with hydrogen cyanide (HCN) in a reactor with limited backmixing at a temperature in the range from 20 to 120° C., wherein the residence time in the reactor is 300 seconds or less. 2. The process according to claim 1 , wherein the residence time in the reactor is less than 60 seconds.…
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Chemistry & Metallurgy · mapped topic
- C07C209/48Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8946459B2 cover?
- A process for reacting ethylenediamine-formaldehyde adduct (EDFA) and/or ethylene-diamine-monoformaldehyde adduct (EDMFA) with hydrogen cyanide (HCN) in a reactor with limited backmixing at a temperature in the range from 20 to 120° C., wherein the residence time in the reactor is 300 seconds or less.
- Who is the assignee on this patent?
- Luyken Hermann, Ahrens Sebastian, Brasche Gordon, and 8 more
- What technology area does this patent fall under?
- Primary CPC classification C07C209/48. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 03 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).