Invention Grant
- Patent Title: Process for the preparation of isocyanates
- Patent Title (中): 异氰酸酯的制备方法
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Application No.: US13690425Application Date: 2012-11-30
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Publication No.: US08765991B2Publication Date: 2014-07-01
- Inventor: Jürgen Kintrup , Peter Lehner , Eric Jakobs , Alfred Soppe , Knud Werner
- Applicant: Bayer Intellectual Property GmbH
- Applicant Address: DE
- Assignee: Bayer Intellectual Property GmbH
- Current Assignee: Bayer Intellectual Property GmbH
- Current Assignee Address: DE
- Agency: Drinker Biddle & Reath LLP
- Priority: DE102011087654 20111202
- Main IPC: C07C249/00
- IPC: C07C249/00
Abstract:
The invention relates to a process for the preparation of isocyanates in a system network comprising an isocyanate production plant, a chlorine production plant and a phosgene production plant, in which carbon dioxide formed as a by-product is partially to completely condensed out with the gaseous chlorine formed in the chlorine production plant and enters into the phosgene preparation process and, after the preparation of phosgene, the predominant part of the carbon dioxide formed is thereby sluiced out of the system network in gaseous form.
Public/Granted literature
- US20130144081A1 PROCESS FOR THE PREPARATION OF ISOCYANATES Public/Granted day:2013-06-06
Information query
