Silica supported polyvinyl pyridine as a highly active heterogeneous base catalyst for the synthesis of cyclic carbonates from carbon dioxide and epoxides

2007 ◽  
Vol 266 (1-2) ◽  
pp. 69-74 ◽  
Author(s):  
Sachin R. Jagtap ◽  
Vivek P. Raje ◽  
Shriniwas D. Samant ◽  
Bhalchandra M. Bhanage
Keyword(s):  
Carbon Dioxide ◽  
Cyclic Carbonates ◽  
Base Catalyst ◽  
Highly Active ◽  
Polyvinyl Pyridine ◽  
Heterogeneous Base Catalyst ◽  
Heterogeneous Base

Reconstructed Hydrotalcite as a Highly Active Heterogeneous Base Catalyst for Carbon−Carbon Bond Formations in the Presence of Water

2006 ◽  
Vol 71 (15) ◽  
pp. 5440-5447 ◽  
Author(s):  
Kohki Ebitani ◽  
Ken Motokura ◽  
Kohsuke Mori ◽  
Tomoo Mizugaki ◽  
Kiyotomi Kaneda
Keyword(s):  
Base Catalyst ◽  
Carbon Bond ◽  
Highly Active ◽  
Carbon Carbon Bond ◽  
Heterogeneous Base Catalyst ◽  
Heterogeneous Base

Conversion of Karanja Oil to Biodiesel Using Modified Heterogeneous Base Catalyst

2021 ◽  
Author(s):  
Divya Bojaraj ◽  
Sai Bharadwaj Aryasomayajula Venkat Lakshmi ◽  
Meera Sheriffa Begum Khadhar Mohamed ◽  
Anantharaman Narayanan
Keyword(s):  
Base Catalyst ◽  
Karanja Oil ◽  
Heterogeneous Base Catalyst ◽  
Heterogeneous Base

scholarly journals Transesterification Reaction from Rice Bran Oil to Biodiesel over Heterogeneous Base Calcium Oxide Nanoparticles Catalyst

2020 ◽  
Vol 5 (3) ◽  
pp. 62
Author(s):  
Nur Fatin Sulaiman ◽  
Abdul Rahim Yacob ◽  
Siew Ling Lee
Keyword(s):  
Calcium Oxide ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Earth Metal ◽  
Single Step ◽  
Transesterification Reaction ◽  
Bet Surface Area ◽  
Base Catalyst ◽  
Heterogeneous Base Catalyst ◽  
Heterogeneous Base

This research focused on the use of heterogeneous base catalyst, calcium oxide (CaO), an alkaline earth metal oxide to produce biodiesel. The aim of this research is to investigate the potential of commercial calcium carbonate, CM-CaCO3 to be transformed to nanostructured CaO and further used as a heterogeneous base catalyst for single step transesterification of rice bran oil to biodiesel. The CaO samples were calcined at temperatures of 100°C to 700°C under vacuum at 10-3 mbar. TGA-DTA result displayed that the calcination temperature for CM-CaCO3 to form CaO must be higher than 600°C. This was supported by FTIR results which indicated the complete formation of CaO at 700°C. XRD showed the rhombohedral CaCO3 and hexagonal Ca(OH)2 were totally disappeared, leaving only crystalline cubic CaO at 700oC. Interestingly, CaO obtained at 700°C (CaO-700) showed the larger BET surface area and highest basicity with 11.5 m2g-1 and 1.959 mmol/g, respectively. The prepared nanostructured CaO-700 was selected and applied for single step transesterification reaction of rice bran oil to produce biodiesel. NMR and GC-FID results further confirmed that biodiesel was successfully formed using CaO-700 as catalyst.

Functionalized microporous organic nanotube networks as a new platform for highly efficient heterogeneous catalysis

2016 ◽  
Vol 7 (30) ◽  
pp. 4975-4982 ◽  
Author(s):  
Hui Zhang ◽  
Linfeng Xiong ◽  
Zidong He ◽  
Aiqing Zhong ◽  
Tianqi Wang ◽  
...  
Keyword(s):  
Heterogeneous Catalysis ◽  
Cross Linking ◽  
Base Catalyst ◽  
Highly Efficient ◽  
Heterogeneous Base Catalyst ◽  
Heterogeneous Base

A novel amino-functionalized microporous organic nanotube networks (NH2-MONNs) as heterogeneous base catalyst was successfully synthesized by combination of hyper-cross-linking and molecular templating of multicomponent bottlebrush copolymers.

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