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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:But just as she was getting ready for the journey her little daughter was taken ill. She recognised with despair the fatal symptoms of her other children. She could not speak English or the doctor French, but Mme. de la Luzerne and her daughter, emigres and friends of the Duchesse dAyen, hastened from London, took up their abode at Richmond, stayed with her until after the death of the child, and then took her to London and looked after her with the greatest kindness and affection until M. de Montagu arrived, too late to see his child, distracted with grief and anxiety for his wife, and sickened and horrified with the Revolution and all the cruelties and horrors he had seen.With calmness they received the order to go to the Conciergerie, which was, they knew, their death sentence. When they were sent for, the Duchess, who was reading the Imitation of Christ, hastily wrote on a scrap of paper, My children, courage and prayer, put it in the place where she left off, and gave the book to the Duchesse dOrlans to give to her daughters if her life were spared. As she said their names, for once her calmness gave way. The book was wet with her tears, which left their mark upon it always.
  • 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.
THREE:Poinsinet, the author, was a man of very different calibre. That he had plenty of ability was proved by the fact that on the same evening he obtained three dramatic successes, i.e., Ernelinde at the Opera, Le Cercle at the Fran?ais, and Tom Jones at the Opra-Comique. But his absurd credulity made him the object of continual practical jokes, or mystifications as they were called.

The aromatic polyimide membrane is highly permeable to water vapor but less permeable to vapors of organic compounds such as alcohol etc.

THREE:However, the King soon began to yield.
  • 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:In all her life she never lost the recollection of the enchantment of that day, and many years later, in her altered surroundings, would say to her children, Ah! that day was the fte de ma jeunesse!When the storm had subsided the peasants were crying and lamenting over the destruction of their crops, and all the large proprietors in the neighbourhood came most generously to their assistance. One rich man distributed forty thousand francs among them. The next year he was one of the first to be massacred.

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