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Membrane separation type solvent dehydration system

Great attention is recently being paid to global environmental issues, and it is now conceivable that companies will need to treat used solvents themselves. In consideration of this kind of social issue, we have developed a “membrane separation type solvent dehydration system,” which uses a polyimide membrane with superior dehydration properties developed by Ube Industries, Ltd. in combination with our own distillation and concentration technology that has resulted in solvents being more easily recovered.

THREE:Felipa stood leaning against the gate post, her bare head outlined in bold black and white against the white parasol that hung over her shoulders. She was watching one of the troop herds coming up from water,the fine, big horses, trotting, bucking, rearing, kicking, biting at each other with squeals and whinnyings, tossing their manes and whisking their tails. Some of them had rolled in the creek bed, and then in the dust, and were caked with mud from neck to croup. They frisked over to their own picket line, and got into rows for the grooming.[121]
  • 1Under the distillation system, even in case of azeotropic solvent compositions, this system which remove water vapor by the polyimide membrane will easily dehydrate.
  • 2In comparison with the distillation system, it significantly saves on use of steam.
  • 3Dehydration can be performed through merely supplying evaporated vapor to the membrane module and maintaining the differential pressure between the permeable side and the impermeable side.
  • 4Solvent purity of 99.9% or more can be achieved by carrying out dehydration with a polyimide membrane only.
  • 5The polyimide membrane has superior heat and solvent resistance. Therefore, the vapor permeation system reduces contamination of the membrane and thus extends its life.
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The aromatic polyimide membrane is highly permeable to water vapor but less permeable to vapors of organic compounds such as alcohol etc.

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  • 1 Recovery of the detergent solvent Recovery of the cleaning solvent such as electronic parts industry, precision instrument industry.
  • 2Solvent recovery and the refinement Solvent recovery and the refinement such as chemical industry, an industry of medical supplies, food industry, the fermentation industry.
THREE:The Houses of Parliament reassembled on the 17th of January, 1712, and Anne sent word that she was not able to attend in person, not having recovered sufficiently from her attack of the gout. She announced that the plenipotentiaries were now assembled at Utrecht, and[2] were already engaged in endeavouring to procure just satisfaction to all the Allies according to their several treaties, and especially with relation to Spain and the Indies. This was a delusion, for, by our treaty with the Emperor, we had engaged to secure Spain and the Indies for his son; and it was now, notwithstanding the assurance in her message regarding them, fully determined to give them up to Philip. There was a strong protest in the message against the evil declarations that there had been an intention to make a separate peace, though nothing was more notorious than that the Ministers were resolved, if the Allies did not come to their terms, to go on without them. The message ended by recommending a measure for the restriction of the liberty of the press. Much alarm was expressed at the great licence in the publishing of false and scandalous libels, though the Ministers themselves did not scruple to employ the terrible pen of Swift.It will do no harm to go over, agreed Mr. Whiteside, slamming the door behind them. Its shorter down along the water.

Acetone, ethanol, methyl ethyl ketone, butanol, isopropyl alcohol, ethyl acetate, methyl isobutyl ketone, others (including hexane and toluene).