Issue 15, 2020

Eco-friendly upconversion of limestone into value-added calcium formate

Abstract

Although CaCO3 is a naturally available, inexpensive, abundant and extensively used chemical in various industries, to date, most of its conversions liberate CO2 into the atmosphere, which accounts for about 5–6% of global anthropogenic CO2 emission. Herein, the first synthesis of calcium formate (CF) by hydrogenation of an aqueous mixture of CaCO3 and CO2 using a heterogeneous catalyst in an unconventional CO2 reducing manner is reported. The phosphine-based heterogenized Ru catalyst efficiently converts CaCO3 into CF with good selectivity (>99%) and is readily separated from the reaction product, resulting in promising recycling ability. Thus, this work provides a promising strategy for the design of green and sustainable conversion of carbonate minerals in industry.

Graphical abstract: Eco-friendly upconversion of limestone into value-added calcium formate

Supplementary files

Article information

Article type
Paper
Submitted
27 Mar 2020
Accepted
22 Jun 2020
First published
29 Jun 2020

Green Chem., 2020,22, 4995-5001

Eco-friendly upconversion of limestone into value-added calcium formate

G. H. Gunasekar, H. Park, S. Padmanaban and S. Yoon, Green Chem., 2020, 22, 4995 DOI: 10.1039/D0GC01089H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements