B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 71/56 (2006.01) B01D 61/36 (2006.01) B01D 67/00 (2006.01) B01D 69/10 (2006.01) B01D 69/12 (2006.01) C10G 31/11 (2006.01)
Patent
CA 2084382
- 17 - ABSTRACT OF THE DISCLOSURE The present invention is directed to a polyester/amide membrane, its preparation and its use for organic liquid separation. The polyester/amide membrane is made by reacting a dianhydride with a polyester diol in a 2:1 to 1.05:1 mole ratio to end cap the diol to produce a prepolymer which is reacted with excess thionyl chloride to convert all of the unreacted anhydride and all carboxylic acid groups to acid chloride groups. The resulting acid chloride derivative is dissolved in organic solvent and interfacially reacted with a diamine dissolved in an aqueous solvent. The excess solutions are removed and the resulting thin film membrane is dried. The membranes are useful for organic liquid separations, especially the separation of aromatic hydrocarbons from mixtures of same with non-aromatic hydrocarbons, preferably under perstraction or pervaporation conditions.
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
LandOfFree
Crosslinked polyester amide membranes and their use for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Crosslinked polyester amide membranes and their use for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crosslinked polyester amide membranes and their use for... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1501227