scholarly journals Homogeneous Catalyst Recycling and Separation of a Multicomponent Mixture Using Organic Solvent Nanofiltration

2019 ◽  
Vol 42 (10) ◽  
pp. 2187-2194
Author(s):  
Johann-Kilian Schnoor ◽  
Martin Fuchs ◽  
Axel Böcking ◽  
Matthias Wessling ◽  
Marcel A. Liauw
Keyword(s):  
Organic Solvent ◽  
Multicomponent Mixture ◽  
Homogeneous Catalyst ◽  
Catalyst Recycling ◽  
Organic Solvent Nanofiltration

scholarly journals Recycling and Separation of Homogeneous Catalyst from Aqueous Multicomponent Mixture by Organic Solvent Nanofiltration

Membranes ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 423
Author(s):  
J.-Kilian Schnoor ◽  
Jens Bettmer ◽  
Johannes Kamp ◽  
Matthias Wessling ◽  
Marcel A. Liauw
Keyword(s):  
Organic Solvent ◽  
Ethyl Acetate ◽  
Ternary Mixture ◽  
Multicomponent Mixture ◽  
Homogeneous Catalyst ◽  
Solvent Mixtures ◽  
Homogeneous Catalysts ◽  
Organic Solvent Nanofiltration

Organic solvent nanofiltration (OSN) has evolved to an established recycling method for homogeneous catalysts. However, commercial availability has not circumvented the need for classification and the scoping of possible applications for specific solvent mixtures. Therefore, Evonik’s DuraMem® 300 was assessed for the recycling of magnesium triflate at two transmembrane pressures from a mixture of ethanol, ethyl acetate and water. Catalyst retention up to 98% and permeability of up to 4.44·10−1∙L∙bar−1∙m−2∙h−1 were possible when less than 25% ethyl acetate was in the mixture. The retention of some of the components in the ternary mixture was observed while others were enriched, making the membrane also suitable for fractioning thereof.

scholarly journals Organic Solvent Nanofiltration of Water-in-Oil Pickering Emulsions—What Influences Permeability?

Membranes ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 864
Author(s):  
Maresa Vivien Kempin ◽  
Anja Drews
Keyword(s):  
Organic Solvent ◽  
Membrane Filtration ◽  
Significant Loss ◽  
Parameter Study ◽  
Pickering Emulsions ◽  
Catalyst Recycling ◽  
Filtration Performance ◽  
Multiphase Reactions ◽  
3D Network ◽  
Organic Solvent Nanofiltration

Pickering emulsions (PEs) have received increasing interest for their application in catalytic multiphase reactions. Organic solvent nanofiltration of PEs was shown to be a promising procedure for efficient and effective catalyst recycling. In this work, a systematic parameter study to identify the main influencing parameters on PE filtration was conducted for a large variety of PE compositions for the first time. In addition to temperature, only the type of organic solvent significantly influenced the filtration performance, which could be mathematically modeled via a combination of the solution–diffusion and the resistance in the series model. Particle type and concentration, dispersed phase fraction and the presence of reaction (by-)products did not show any significant impact on the permeability. The stirrer speed only became important when emulsions stabilized by particles without the tendency to form 3D network structures were filtered in long-term filtration experiments. These results pave the way towards the application of PE membrane filtration for catalyst recovery in continuous liquid/liquid multiphase reactions and enable broad operation windows. As the mechanical separation of PEs was shown to be a very robust process, the emulsion composition can now be tuned to meet the needs of the reaction without any (significant) loss in filtration performance.

Organic Solvent Nanofiltration

2021 ◽  
pp. 889-932
Author(s):  
Torsten Brinkmann ◽  
Volkan Filiz
Keyword(s):  
Organic Solvent ◽  
Organic Solvent Nanofiltration

Fungal Cell Wall‐Graphene Oxide Microcomposite Membrane for Organic Solvent Nanofiltration

2021 ◽  
pp. 2100110
Author(s):  
Liyuan Zhang ◽  
Mengchen Zhang ◽  
Gongping Liu ◽  
Wanqin Jin ◽  
Xiaoyan Li
Keyword(s):  
Cell Wall ◽  
Graphene Oxide ◽  
Organic Solvent ◽  
Fungal Cell Wall ◽  
Fungal Cell ◽  
Organic Solvent Nanofiltration

Recent advances in nanomaterial-incorporated nanocomposite membranes for organic solvent nanofiltration

2021 ◽  
pp. 118657
Author(s):  
Chen Wang ◽  
Myoung Jun Park ◽  
Dong Han Seo ◽  
Enrico Drioli ◽  
Hideto Matsuyama ◽  
...  
Keyword(s):  
Organic Solvent ◽  
Nanocomposite Membranes ◽  
Recent Advances ◽  
Organic Solvent Nanofiltration

scholarly journals Recyclable Catalysts for Alkyne Functionalization

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3525
Author(s):  
Leslie Trigoura ◽  
Yalan Xing ◽  
Bhanu P. S. Chauhan
Keyword(s):  
Supported Catalysts ◽  
Metal Organic Framework ◽  
Metal Nanoparticle ◽  
Homogeneous Catalyst ◽  
Catalyst Recycling ◽  
Catalytic Systems ◽  
Recyclable Catalysts ◽  
Metal Organic ◽  
Porous Organic Framework ◽  
Organic Framework

In this review, we present an assessment of recent advances in alkyne functionalization reactions, classified according to different classes of recyclable catalysts. In this work, we have incorporated and reviewed the activity and selectivity of recyclable catalytic systems such as polysiloxane-encapsulated novel metal nanoparticle-based catalysts, silica–copper-supported nanocatalysts, graphitic carbon-supported nanocatalysts, metal organic framework (MOF) catalysts, porous organic framework (POP) catalysts, bio-material-supported catalysts, and metal/solvent free recyclable catalysts. In addition, several alkyne functionalization reactions have been elucidated to demonstrate the success and efficiency of recyclable catalysts. In addition, this review also provides the fundamental knowledge required for utilization of green catalysts, which can combine the advantageous features of both homogeneous (catalyst modulation) and heterogeneous (catalyst recycling) catalysis.

scholarly journals New Membranes for Organic Solvent Nanofiltration

2012 ◽  
Vol 44 ◽  
pp. 247-250 ◽  
Author(s):  
S. Dutczak ◽  
M. Luiten-Olieman ◽  
H.J. Zwijnenberg ◽  
C.R. Tanardi ◽  
K.K. Kopec ◽  
...  
Keyword(s):  
Organic Solvent ◽  
Organic Solvent Nanofiltration
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