Solvent-free microwave-assisted synthesis of solketal from glycerol using transition metal ions promoted mordenite solid acid catalysts

2017 ◽  
Vol 434 ◽  
pp. 184-193 ◽  
Author(s):  
Samudrala Shanthi Priya ◽  
P.R. Selvakannan ◽  
Komandur V.R. Chary ◽  
Mannepalli Lakshmi Kantam ◽  
Suresh K. Bhargava
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Solid Acid ◽  
Transition Metal Ions ◽  
Solvent Free ◽  
Solid Acid Catalysts ◽  
Microwave Assisted Synthesis ◽  
Acid Catalysts ◽  
Microwave Assisted

Microwave-assisted synthesis of d-glucuronic acid derivatives using cost-effective solid acid catalysts

2010 ◽  
Vol 51 (10) ◽  
pp. 1356-1360 ◽  
Author(s):  
Aurore Richel ◽  
Pascal Laurent ◽  
Bernard Wathelet ◽  
Jean-Paul Wathelet ◽  
Michel Paquot
Keyword(s):  
Solid Acid ◽  
Glucuronic Acid ◽  
Cost Effective ◽  
Solid Acid Catalysts ◽  
Microwave Assisted Synthesis ◽  
Acid Catalysts ◽  
Microwave Assisted

Microwave-Assisted Oxidative Coupling of Amines to Imines on Solid Acid Catalysts.

ChemInform ◽  
2007 ◽  
Vol 38 (44) ◽  
Author(s):  
Shainaz M. Landge ◽  
Valentina Atanassova ◽  
Muralidhara Thimmaiah ◽  
Bela Toeroek
Keyword(s):  
Oxidative Coupling ◽  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Microwave Assisted

Polyvinyl trisulfonate ethylamine based solid acid catalyst for the efficient glycosylation of sugars under solvent free conditions

RSC Advances ◽  
2015 ◽  
Vol 5 (127) ◽  
pp. 104715-104724 ◽  
Author(s):  
Avinash A. Chaugule ◽  
Amol R. Jadhav ◽  
Hern Kim
Keyword(s):  
Catalytic Activity ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Solvent Free ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Solvent Free Conditions ◽  
Acid Catalyzed

We have synthesized Brønsted solid acid catalysts which exhibited effective catalytic activity for acid catalyzed glycosylation reactions.

Preparation of solid acid catalysts from waste biomass and their application for microwave-assisted biodiesel production from waste palm oil

2018 ◽  
Vol 36 (8) ◽  
pp. 719-728 ◽  
Author(s):  
Indika Thushari ◽  
Sandhya Babel
Keyword(s):  
Palm Oil ◽  
Photoelectron Spectroscopy ◽  
Solid Acid ◽  
Waste Utilization ◽  
Biodiesel Production ◽  
Solid Acid Catalysts ◽  
Molar Ratio ◽  
Acid Catalysts ◽  
Waste Biomass ◽  
Microwave Assisted

Waste utilization is essential and challenging. Utilization of wastes gives environmental, economic, and social benefits. In this study, inexpensive, sulfonated solid acid catalysts were successfully prepared from palm empty fruit bunch (PEFB), coconut meal residue (CMR), and coconut coir husk (CH) waste by a simple protocol. It was found that prepared PEFB–BCS–SO3H, CMR–BCS–SO3H, and CH–BCS–SO3H catalysts have 4.79, 3.75, and 2.80 mmol g-1 acid density and 739.0, 89.77, and 61.49 m2 g-1 surface areas, respectively. Further, the presence of active functional groups on the surface of the catalysts was confirmed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. Thermal stability of the catalysts was found below 150°C. Results show that biodiesel yield increases with increasing reaction time and methanol loading, when using microwave heating for biodiesel production from waste palm oil (WPO) and prepared catalysts. A maximum biodiesel yield of 95.5% was obtained by PEFB–BCS–SO3H in 60 minutes using 20:1 methanol:oil (molar ratio) at 70°C. CMR–BCS–SO3H and CH–BCS–SO3H obtained 88.7 and 88.5% biodiesel yields in 60 minutes, using 20:1 and 16:1 methanol:oil (molar ratio), at 70 and 110°C, respectively. Even though, the activity of the catalysts decreased during reuse, these are still of interest as the waste biomass of PEFB, CMR, and CH can be used for catalyst preparation and microwave-assisted biodiesel production from WPO.

Microwave-assisted oxidative coupling of amines to imines on solid acid catalysts

2007 ◽  
Vol 48 (29) ◽  
pp. 5161-5164 ◽  
Author(s):  
Shainaz M. Landge ◽  
Valentina Atanassova ◽  
Muralidhara Thimmaiah ◽  
Béla Török
Keyword(s):  
Oxidative Coupling ◽  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Microwave Assisted

The enhancement of the hydrolysis of bamboo biomass in ionic liquid with chitosan-based solid acid catalysts immobilized with metal ions

2016 ◽  
Vol 220 ◽  
pp. 457-463 ◽  
Author(s):  
Jie Cheng ◽  
Nan Wang ◽  
Dezhou Zhao ◽  
Dandan Qin ◽  
Wenqing Si ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Metal Ions ◽  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Hydrolysis Of
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