Invention Grant
- Patent Title: Heterogeneous catalysts for the synthesis of carbamates
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Application No.: US17040572Application Date: 2019-03-26
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Publication No.: US11406964B2Publication Date: 2022-08-09
- Inventor: Stefan Wershofen , Anton Vidal-Ferran , José Luis Núñez Rico , Javier Perez-Ramirez , Begona Puertolas Lacambra , Amol P. Amrute
- Applicant: Covestro Intellectual Property GmbH & Co. KG
- Applicant Address: DE Leverkusen
- Assignee: Covestro Intellectual Property GmbH & Co. KG
- Current Assignee: Covestro Intellectual Property GmbH & Co. KG
- Current Assignee Address: DE Leverkusen
- Agent Donald R. Palladino
- Priority: EP18164463 20180328,EP19151926 20190115
- International Application: PCT/EP2019/057541 WO 20190326
- International Announcement: WO2019/185608 WO 20191003
- Main IPC: B01J23/10
- IPC: B01J23/10 ; B01J6/00 ; B01J37/03 ; B01J37/12 ; C07C269/04 ; C07C271/28

Abstract:
The present invention relates to a catalyst for preparing carbamates, in particular aromatic carbamates, comprising a binary oxide having the formula L1-xMxO2, wherein L is a metal selected from the lanthanoid series and M is a metal selected from the group consisting of Sc, Y, Ti, Zr, Hf, metals from the lanthanoid series and metals from the actinoid series, and wherein x ranges from 0.01 to 0.05. The present invention also relates to a method for producing said catalysts and a method of utilizing said catalysts in the production of carbamates, in particular aromatic carbamates.
Public/Granted literature
- US20210053031A1 HETEROGENEOUS CATALYSTS FOR THE SYNTHESIS OF CARBAMATES Public/Granted day:2021-02-25
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