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Title: Continuous method for preparing carbonate esters

Patent ·
OSTI ID:1824042

In one embodiment, a continuous process for preparing organic carbonate solvent of Formula (I) as described herein comprises contacting a first reactant (an alcohol) with a reactive carbonyl source (carbonyldiimidazole (CDI) or an alkylchloroformate) in the presence of a catalyst in reaction stream flowing through a continuous flow reactor at temperature 20° C. to about 160° C. and at a flow rate providing a residence time in the range of about 0.1 minute to about 24 hours; collecting a reactor effluent exiting from the continuous flow reactor; recovering a crude product from the reactor effluent; and distilling the crude product to obtain the organic carbonate compound of Formula (I). In another embodiment, the first reactant is an epoxide and the carbonyl source is carbon dioxide.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-06CH11357
Assignee:
UChicago Argonne, LLC (Chicago, IL)
Patent Number(s):
11,028,065
Application Number:
16/812,628
OSTI ID:
1824042
Resource Relation:
Patent File Date: 03/09/2020
Country of Publication:
United States
Language:
English

References (1)

Continuous Synthesis of Isooctyl Nitrate in a Flow Reactor patent-application March 2017

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