scholarly journals Direct Conversion of Glucose to 5-Hydroxymethylfurfural over H3PW12O40/TEOS Heterogeneous Catalyst

2018 ◽  
Vol SI1 (4) ◽  
pp. 45-50
Author(s):  
Afeeq Asyraf ◽  
◽  
Siti Aishah Anuar ◽  
Wan Nor Roslam Wan Isahak
Keyword(s):  
Heterogeneous Catalyst ◽  
Direct Conversion

Silica-supported boric acid assisted conversion of mono- and poly-saccharides to 5-hydroxymethylfurfural in ionic liquid

RSC Advances ◽  
2014 ◽  
Vol 4 (28) ◽  
pp. 14414-14418 ◽  
Author(s):  
Mayanka Walia ◽  
Upendra Sharma ◽  
Vijai K. Agnihotri ◽  
Bikram Singh
Keyword(s):  
Ionic Liquid ◽  
Boric Acid ◽  
Heterogeneous Catalyst ◽  
Direct Conversion

Silica-supported boric acid has been prepared and applied as heterogeneous catalyst for the direct conversion of inexpensive and biorenewable mono- and polysaccharides to 5-hydroxymethylfurfural (HMF) in ionic liquid under much milder conditions.

Bi-functional heterogeneous iron complexes for catalytic conversion of epoxides to cyclic carbonates and their application in the synthesis of polyurethane

2018 ◽  
Vol 2 (6) ◽  
pp. 1312-1322 ◽  
Author(s):  
Shailesh Verma ◽  
Mohd. Nazish ◽  
Rukhsana I. Kureshy ◽  
Noor-ul H. Khan
Keyword(s):  
Heterogeneous Catalyst ◽  
Value Added ◽  
Catalytic Conversion ◽  
Iron Complexes ◽  
Direct Conversion ◽  
Cyclic Carbonates

The development of a sustainable heterogeneous catalyst for direct conversion of CO2 to value-added chemicals is of great interest.

ChemInform Abstract: Direct Conversion of Benzene to p-Benzoquinone with Heterogeneous Catalyst.

ChemInform ◽  
1989 ◽  
Vol 20 (30) ◽  
Author(s):  
A. KUNAI ◽  
F. IWASAKI ◽  
T. WANI ◽  
Y. KURODA ◽  
S. ITO ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Direct Conversion

An Exceptionally Stable Ti Superoxide Radical Ion: A Novel Heterogeneous Catalyst for the Direct Conversion of Aromatic Primary Amines to Nitro Compounds

2001 ◽  
Vol 113 (2) ◽  
pp. 419-422 ◽  
Author(s):  
Gajanan K. Dewkar ◽  
Milind D. Nikalje ◽  
Iliyas Sayyed Ali ◽  
Abhimanyu S. Paraskar ◽  
H. S. Jagtap ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Superoxide Radical ◽  
Direct Conversion ◽  
Nitro Compounds ◽  
Primary Amines

Use of the Magnetostatic Analogue In Electromagnetic Lens Engineering

1970 ◽  
Vol 28 ◽  
pp. 360-361
Author(s):  
John W. Coleman
Keyword(s):  
Boundary Conditions ◽  
High Performance ◽  
Force Fields ◽  
Optical Design ◽  
Direct Conversion ◽  
Design Engineering ◽  
Design Data ◽  
Scalar Potentials ◽  
Geometric Elements ◽  
At Will

In the design engineering of high performance electromagnetic lenses, the direct conversion of electron optical design data into drawings for reliable hardware is oftentimes difficult, especially in terms of how to mount parts to each other, how to tolerance dimensions, and how to specify finishes. An answer to this is in the use of magnetostatic analytics, corresponding to boundary conditions for the optical design. With such models, the magnetostatic force on a test pole along the axis may be examined, and in this way one may obtain priority listings for holding dimensions, relieving stresses, etc..The development of magnetostatic models most easily proceeds from the derivation of scalar potentials of separate geometric elements. These potentials can then be conbined at will because of the superposition characteristic of conservative force fields.

Synthesis of carbonate esters by carboxymethylation using NaAlO2 as a highly active heterogeneous catalyst

2018 ◽  
Author(s):  
Sreerangappa Ramesh ◽  
Kiran Indukuri ◽  
Olivier Riant ◽  
Damien Debecker
Keyword(s):  
Heterogeneous Catalyst ◽  
Dimethyl Carbonate ◽  
Sodium Aluminate ◽  
High Yield ◽  
Solid Catalyst ◽  
Highly Active ◽  
Aromatic Alcohols ◽  
Green Conditions ◽  
Mixed Carbonate

<p>Sodium aluminate is presented as a highly active heterogeneous catalyst able to convert a range of alcohols into the corresponding mixed carbonate esters, in high yield and under green conditions. The reaction is carried out using dimethyl carbonate both as a reactant and solvent, at 90°C. Allylic, aliphatic and aromatic alcohols are converted in good yields. The solid catalyst is shown to be truly heterogeneous, resistant to leaching, and recyclable. </p>

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