scholarly journals Continuous Catalytic Oxidation of Glycerol to Carboxylic Acids Using Nanosized Gold/Alumina Catalysts and a Liquid-Phase Flow Reactor

ACS Omega ◽  
2018 ◽  
Vol 3 (10) ◽  
pp. 13862-13868 ◽  
Author(s):  
Naoki Mimura ◽  
Natsumi Muramatsu ◽  
Norihito Hiyoshi ◽  
Osamu Sato ◽  
Yoshio Masuda ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Catalytic Oxidation ◽  
Carboxylic Acids ◽  
Flow Reactor ◽  
Phase Flow ◽  
Alumina Catalysts

scholarly journals Application of microfluidics to control product selectivity during non-catalytic oxidation of naphthenic-aromatic hydrocarbons

2016 ◽  
Vol 1 (4) ◽  
pp. 418-435 ◽  
Author(s):  
M. N. Siddiquee ◽  
A. de Klerk ◽  
N. Nazemifard
Keyword(s):  
Liquid Phase ◽  
Catalytic Oxidation ◽  
Aromatic Hydrocarbons ◽  
Slug Flow ◽  
High Selectivity ◽  
Flow Reactor ◽  
Product Selectivity ◽  
Control Product ◽  
Phase Oxidation ◽  
Local Oxygen

Liquid phase oxidation of naphthenic-aromatic hydrocarbons in slug-flow reactor shows high selectivity, arising from the ability to control local oxygen availability in miniaturized reactors.

Liquid-phase catalytic oxidation of C6-C7 cycloolefins into carboxylic acids in a pseudohomogeneous system

2011 ◽  
Vol 84 (2) ◽  
pp. 236-242 ◽  
Author(s):  
Kh. M. Alimardanov ◽  
O. A. Sadygov ◽  
N. I. Garibov ◽  
M. F. Abbasov ◽  
M. Ya. Abdullaeva ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Catalytic Oxidation ◽  
Carboxylic Acids

scholarly journals Continuous citrate‐capped gold nanoparticle synthesis in a two‐phase flow reactor

2021 ◽  
Author(s):  
Spyridon Damilos ◽  
Ioannis Alissandratos ◽  
Luca Panariello ◽  
Anand N. P. Radhakrishnan ◽  
Enhong Cao ◽  
...  
Keyword(s):  
Particle Size ◽  
Gold Nanoparticles ◽  
Residence Time ◽  
Flow Reactor ◽  
Phase Flow ◽  
Continuous Manufacturing ◽  
Two Phase ◽  
Process Yield ◽  
Au Nps ◽  
Manufacturing Platform

AbstractA continuous manufacturing platform was developed for the synthesis of aqueous colloidal 10–20 nm gold nanoparticles (Au NPs) in a flow reactor using chloroauric acid, sodium citrate and citric acid at 95 oC and 2.3 bar(a) pressure. The use of a two-phase flow system – using heptane as the continuous phase – prevented fouling on the reactor walls, while improving the residence time distribution. Continuous syntheses for up to 2 h demonstrated its potential application for continuous manufacturing, while live quality control was established using online UV-Vis photospectrometry that monitored the particle size and process yield. The synthesis was stable and reproducible over time for gold precursor concentration above 0.23 mM (after mixing), resulting in average particle size between 12 and 15 nm. A hydrophobic membrane separator provided successful separation of the aqueous and organic phases and collection of colloidal Au NPs in flow. Process yield increased at higher inlet flow rates (from 70 % to almost 100 %), due to lower residence time of the colloidal solution in the separator resulting in less fouling in the PTFE membrane. This study addresses the challenges for the translation of the synthesis from batch to flow and provides tools for the development of a continuous manufacturing platform for gold nanoparticles.Graphical abstract

ChemInform Abstract: LIQUID-PHASE CATALYTIC OXIDATION OF ALLYL CHLORIDE TO EPICHLOROHYDRIN

1976 ◽  
Vol 7 (36) ◽  
pp. no-no
Author(s):  
I. YA. MOKROUSOVA ◽  
L. A. OSHIN ◽  
YU. A. TREGER
Keyword(s):  
Liquid Phase ◽  
Catalytic Oxidation ◽  
Allyl Chloride

scholarly journals Solvent inhibition in the liquid-phase catalytic oxidation of 1,4-butanediol: understanding the catalyst behaviour from NMR relaxation time measurements

2016 ◽  
Vol 6 (21) ◽  
pp. 7896-7901 ◽  
Author(s):  
Carmine D'Agostino ◽  
Mark R. Feaviour ◽  
Gemma L. Brett ◽  
Jonathan Mitchell ◽  
Andrew P. E. York ◽  
...  
Keyword(s):  
Relaxation Time ◽  
Liquid Phase ◽  
Catalytic Oxidation ◽  
Heterogeneous Catalysts ◽  
Nmr Relaxation ◽  
Nmr Relaxation Time

Solvent inhibition over surfaces affects behaviour and performances of heterogeneous catalysts.

Sign in / Sign up

Export Citation Format

Share Document