Method for producing isocyanates in the gas phase
US-2015299111-A1 · Oct 22, 2015 · US
Process for the preparation of isocyanates in the gas phase
US9051243B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9051243-B2 |
| Application number | US-201013383936-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 6, 2010 |
| Priority date | Jul 17, 2009 |
| Publication date | Jun 9, 2015 |
| Grant date | Jun 9, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Isocyanates are produced by reacting a primary amine with phosgene in the gas phase. In this process, the amine is vaporized and then superheated prior to introduction into the reactor. The amine is superheated to a temperature at least 10° C. above dew point before entry into the reactor. A pressure difference between the vaporizer and entry into the reactor of from 1 to 500 mbar is maintained.
First claim
Opening claim text (preview).
What is claimed is: 1. A process for the production of an isocyanate comprising reacting a primary amine with phosgene in a reactor in the gas phase the process comprising the following steps: (a) vaporizing the amine in a vaporizer, the vaporized amine containing droplets, (b) superheating the vaporized amine in a feed to the reactor to a temperature at least 15° C. above dew point in the feed directly before entry into the reactor, wherein either (i) no device for drop separat…
Assignees
Inventors
Classifications
- C07C263/10Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9051243B2 cover?
- Isocyanates are produced by reacting a primary amine with phosgene in the gas phase. In this process, the amine is vaporized and then superheated prior to introduction into the reactor. The amine is superheated to a temperature at least 10° C. above dew point before entry into the reactor. A pressure difference between the vaporizer and entry into the reactor of from 1 to 500 mbar is maintained.
- Who is the assignee on this patent?
- Bruns Rainer, Lorenz Wolfgang, Rausch Andreas Karl, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification C07C263/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 09 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).