scholarly journals Fabrication of carbon nano-tubes decorated with ultra fine superparamagnetic nano-particles under continuous flow conditions

Lab on a Chip ◽  
2008 ◽  
Vol 8 (3) ◽  
pp. 439 ◽  
Author(s):  
Suk Fun Chin ◽  
K. Swaminathan Iyer ◽  
Colin L. Raston
Keyword(s):  
Continuous Flow ◽  
Nano Particles ◽  
Flow Conditions ◽  
Carbon Nano Tubes

Metal–organic frameworks for the removal of the emerging contaminant atenolol under real conditions

2021 ◽  
Vol 50 (7) ◽  
pp. 2493-2500
Author(s):  
Sara Rojas ◽  
Jorge A. R. Navarro ◽  
Patricia Horcajada
Keyword(s):  
Continuous Flow ◽  
Metal Organic Frameworks ◽  
Fixed Bed ◽  
Emerging Contaminant ◽  
Flow Conditions ◽  
Metal Organic ◽  
Fixed Bed System

A defective Metal-Organic Frameworks as an improved material for the construction of a fixed-bed system working under continuous flow conditions for the removal of the emerging contaminant atenolol.

scholarly journals Formation and Utility of Reactive Ketene Intermediates Under Continuous Flow Conditions

Tetrahedron ◽  
2021 ◽  
pp. 132305
Author(s):  
Harry R. Smallman ◽  
Jamie A. Leitch ◽  
Tom McBride ◽  
Steven V. Ley ◽  
Duncan L. Browne
Keyword(s):  
Continuous Flow ◽  
Flow Conditions

scholarly journals Achieving selectivity in porphyrin bromination through a DoE-driven optimization under continuous flow conditions

2020 ◽  
Author(s):  
Paolo Zardi ◽  
Michele Maggini ◽  
Tommaso Carofiglio
Keyword(s):  
Reaction Time ◽  
Design Of Experiment ◽  
Continuous Flow ◽  
Optimization Process ◽  
Porphyrin Ring ◽  
Flow Conditions ◽  
Reaction Parameters ◽  
Synthetic Procedure ◽  
Relevant Factors ◽  
Post Functionalization

AbstractThe post-functionalization of porphyrins through the bromination in β position of the pyrrolic rings is a relevant transformation because the resulting bromoderivatives are useful synthons to covalently link a variety of chemical architectures to a porphyrin ring. However, single bromination of porphyrins is a challenging reaction for the abundancy of reactive β-pyrrolic positions in the aromatic macrocycle. We herein report a synthetic procedure for the efficient preparation of 2-bromo-5,10,15,20-tetraphenylporphyrin (1) under continuous flow conditions. The use of flow technology allows to reach an accurate control over critical reaction parameters such as temperature and reaction time. Furthermore, by performing the optimization process through a statistical DoE (Design of Experiment) approach, these parameters could be properly adjusted with a limited number of experiments. This process led us to a better understanding of the relevant factors that govern porphyrins monobromination and to obtain compound 1 with an unprecedent 80% yield.

Distribution of pentagons and shapes in carbon nano-tubes and nano-particles

1993 ◽  
Vol 202 (5) ◽  
pp. 384-388 ◽  
Author(s):  
P.M. Ajayan ◽  
T. Ichihashi ◽  
S. Iijima
Keyword(s):  
Nano Particles ◽  
Carbon Nano Tubes

Ammonium formate as a green hydrogen source for clean semi-continuous enzymatic dynamic kinetic resolution of (+/−)-α-methylbenzylamine

RSC Advances ◽  
2014 ◽  
Vol 4 (26) ◽  
pp. 13620-13625 ◽  
Author(s):  
Amanda S. de Miranda ◽  
Rodrigo O. M. A. de Souza ◽  
Leandro S. M. Miranda
Keyword(s):  
Continuous Flow ◽  
Kinetic Resolution ◽  
Ammonium Formate ◽  
Flow Conditions ◽  
Dynamic Kinetic Resolution

The chemoenzymatic dynamic kinetic resolution of (+/−)-α-methylbenzylamine under continuous flow conditions in the presence of Pd/BaSO4as racemization catalyst and ammonium formate as reductant is described.

scholarly journals Size Selective Synthesis of Superparamagnetic Nanoparticles in Thin Fluids under Continuous Flow Conditions

2008 ◽  
Vol 18 (6) ◽  
pp. 922-927 ◽  
Author(s):  
Suk Fun Chin ◽  
K. Swaminathan Iyer ◽  
Colin L. Raston ◽  
Martin Saunders
Keyword(s):  
Continuous Flow ◽  
Superparamagnetic Nanoparticles ◽  
Selective Synthesis ◽  
Flow Conditions

Degradation of chlorophenols by biofilms on semi-permeable membranes in two types of fixed bed reactors

1995 ◽  
Vol 32 (8) ◽  
pp. 205-212 ◽  
Author(s):  
A. Wobus ◽  
S. Ulrich ◽  
I. Röske
Keyword(s):  
Continuous Flow ◽  
Plug Flow ◽  
Fixed Bed ◽  
Biofilm Reactor ◽  
Flow Conditions ◽  
Concentration Gradients ◽  
Batch Mode ◽  
Sequencing Batch Biofilm Reactor ◽  
Fixed Bed Reactors ◽  
Protozoan Community

Two identical fixed bed reactors containing gas-permeable tubings as carrier material were compared for the elimination of chlorophenols. Under plug flow conditions, the continuous flow operation resulted in a stratification of biomass due to concentration gradients. To achieve a homogeneous colonization, the sequencing batch mode has been applicated to one biofilm reactor (Sequencing Batch Biofilm Reactor - SBBR). Concentration gradients after filling, probably due to sorption phenomena, caused an uneven distribution of biomass in the SBBR. However, the colonization of the SBBR was more homogeneous as compared to the continuously operated reactor (CFBR). As to the elimination of a trichlorophenol (2,4,5-trichlorophenol - TCP), no significant differences between the SBBR and the CFBR were observed with regard to its sensitivity against load surges. It is to be supposed that sorption to the biofilm was included in the elimination of chlorophenols. A higher diversity of protozoan community and meiofauna is obviously to be attributed to continuous flow.

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