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Separation of hydridocarbonyltris(triphenylphosphine) rhodium (I) catalyst using solvent resistant nanofiltration

The liquid-phase organic synthesis presents the challenge of developing a membrane that is resistant and at the same time able to reject the catalyst. An investigation was conducted into the nanofiltration of rhodium tris(triphenyl-phosphine) [HRh(CO)(PPh3)3] catalyst used in the hydroformylation of...

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Main Authors: Shaharun, Maizatul Shima, Mukhtar, Hilmi, Taha, Mohamad Faisal
Format: Conference or Workshop Item
Published: 2011
Subjects:
QD Chemistry
Online Access:http://eprints.utp.edu.my/6986/1/MPIC_2011.pdf
http://eprints.utp.edu.my/6986/
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spelling my.utp.eprints.69862017-01-19T08:22:18Z Separation of hydridocarbonyltris(triphenylphosphine) rhodium (I) catalyst using solvent resistant nanofiltration Shaharun, Maizatul Shima Mukhtar, Hilmi Taha, Mohamad Faisal QD Chemistry The liquid-phase organic synthesis presents the challenge of developing a membrane that is resistant and at the same time able to reject the catalyst. An investigation was conducted into the nanofiltration of rhodium tris(triphenyl-phosphine) [HRh(CO)(PPh3)3] catalyst used in the hydroformylation of olefins. The large size of the catalyst (>400 Da) – relative to other components of the reaction provides the opportunity for a membrane separation based on retention of the catalyst species while permeating the solvent. The compatibility of the solvent-polyimide membrane (STARMEMTM 122 and STARMEMTM 240) combinations was assessed in terms of the membrane stability in solvent plus non-zero solvent flux at 2.0 MPa. The solvent flux and membrane rejection of HRh(CO)(PPh3)3 was then determined for the catalyst-solvent-membrane combination in a dead-end pressure cell. Good HRh(CO)(PPh3)3 rejection (>0.93) coupled with good solvent fluxes (>72 L/m2∙h1 at 2.0 MPa) were obtained in one of the systems tested. The effect of pressure and catalyst concentration on the solvent flux and catalyst rejection was conducted on catalyst-toluene-membrane systems. Increasing pressure substantially improved both solvent flux and catalyst rejection, while increasing catalyst concentration was found to be beneficial in terms of substantial increases in catalyst rejection without significantly affecting solvent flux. The morphology of the membrane was studied by FESEM. 2011-10-18 Conference or Workshop Item PeerReviewed application/pdf http://eprints.utp.edu.my/6986/1/MPIC_2011.pdf Shaharun, Maizatul Shima and Mukhtar, Hilmi and Taha, Mohamad Faisal (2011) Separation of hydridocarbonyltris(triphenylphosphine) rhodium (I) catalyst using solvent resistant nanofiltration. In: Malaysia Polymer International Conference, 18-20 October 2011, Bangi, Selangor. http://eprints.utp.edu.my/6986/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
topic QD Chemistry
spellingShingle QD Chemistry
Shaharun, Maizatul Shima
Mukhtar, Hilmi
Taha, Mohamad Faisal
Separation of hydridocarbonyltris(triphenylphosphine) rhodium (I) catalyst using solvent resistant nanofiltration
description The liquid-phase organic synthesis presents the challenge of developing a membrane that is resistant and at the same time able to reject the catalyst. An investigation was conducted into the nanofiltration of rhodium tris(triphenyl-phosphine) [HRh(CO)(PPh3)3] catalyst used in the hydroformylation of olefins. The large size of the catalyst (>400 Da) – relative to other components of the reaction provides the opportunity for a membrane separation based on retention of the catalyst species while permeating the solvent. The compatibility of the solvent-polyimide membrane (STARMEMTM 122 and STARMEMTM 240) combinations was assessed in terms of the membrane stability in solvent plus non-zero solvent flux at 2.0 MPa. The solvent flux and membrane rejection of HRh(CO)(PPh3)3 was then determined for the catalyst-solvent-membrane combination in a dead-end pressure cell. Good HRh(CO)(PPh3)3 rejection (>0.93) coupled with good solvent fluxes (>72 L/m2∙h1 at 2.0 MPa) were obtained in one of the systems tested. The effect of pressure and catalyst concentration on the solvent flux and catalyst rejection was conducted on catalyst-toluene-membrane systems. Increasing pressure substantially improved both solvent flux and catalyst rejection, while increasing catalyst concentration was found to be beneficial in terms of substantial increases in catalyst rejection without significantly affecting solvent flux. The morphology of the membrane was studied by FESEM.
format Conference or Workshop Item
author Shaharun, Maizatul Shima
Mukhtar, Hilmi
Taha, Mohamad Faisal
author_facet Shaharun, Maizatul Shima
Mukhtar, Hilmi
Taha, Mohamad Faisal
author_sort Shaharun, Maizatul Shima
title Separation of hydridocarbonyltris(triphenylphosphine) rhodium (I) catalyst using solvent resistant nanofiltration
title_short Separation of hydridocarbonyltris(triphenylphosphine) rhodium (I) catalyst using solvent resistant nanofiltration
title_full Separation of hydridocarbonyltris(triphenylphosphine) rhodium (I) catalyst using solvent resistant nanofiltration
title_fullStr Separation of hydridocarbonyltris(triphenylphosphine) rhodium (I) catalyst using solvent resistant nanofiltration
title_full_unstemmed Separation of hydridocarbonyltris(triphenylphosphine) rhodium (I) catalyst using solvent resistant nanofiltration
title_sort separation of hydridocarbonyltris(triphenylphosphine) rhodium (i) catalyst using solvent resistant nanofiltration
publishDate 2011
url http://eprints.utp.edu.my/6986/1/MPIC_2011.pdf
http://eprints.utp.edu.my/6986/
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score 13.211869

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