TY - CONF VL - 1482 EP - 283 UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874149815&doi=10.1063%2f1.4757480&partnerID=40&md5=0041a2073e25758d4ceec7ce7d94d922 A1 - Shaharun, M.S. A1 - Mustafa, A.K. A1 - Taha, M.F. SN - 0094243X Y1 - 2012/// ID - scholars2573 TI - Nanofiltration of rhodium tris(triphenylphosphine) catalyst in ethyl acetate solution SP - 279 N1 - cited By 5; Conference of 2nd International Conference on Fundamental and Applied Sciences 2012, ICFAS 2012 ; Conference Date: 12 June 2012 Through 14 June 2012 N2 - Solvent resistant nanofiltration (SRNF) using polymer membranes has recently received enhanced attention due to the search for cleaner and more energy-efficient technologies. The large size of the rhodium tris(triphenylphosphine) HRh(CO)(PPh3)3 catalyst (>400 Da) - relative to other components of the hydroformylation 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 (DuraMem{trade mark, serif} 200 and DuraMem{trade mark, serif} 500) combinations was assessed in terms of the membrane stability in solvent plus non-zero solvent flux at 2.0 MPa. Good HRh(CO)(PPh 3)3 rejection (>0.95) and solvent fluxes of 9.9 L/m2·h1 at 2.0 MPa were obtained in the catalyst-ethyl acetate-DuraMem 500 system. The effect of pressure and catalyst concentration on the solvent flux and catalyst rejection was conducted on the catalyst-ethyl acetate-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. © 2012 American Institute of Physics. AV - none CY - Kuala Lumpur ER -