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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:[x]It was not Paulette, explained Leclerc, he would be distressed to leave her, but she would be safe and surrounded by her family. It was his young sister, now at school at Mme. Campans, whom he could not leave unprotected, perhaps for ever. I ask you, General, how can I?
  • 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:The death of his wife and the revelation she had made to him, plunged the Marquis de into such a fearful state that at first his reason was almost overcome; and as he gradually recovered his self-possession the idea occurred to him to take advantage for his own purposes of the rumour circulated, that grief for the loss of his wife had affected his reason.

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

THREE:
  • 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:WHILE Mme. de Genlis was safe and enjoying herself in England terrible events were happening in France. The Duke of Orlans, already infamous in the eyes of all decent people, was beginning to lose his popularity with the revolutionists. He [125] could not doubt the discredit into which he had fallen, the flight of his son [126] exposed him to dangerous suspicions; it was decided to get rid of him. He had demanded that his explanations should be admitted, but he was advised to ask rather, in the interest of your own safety, for a decree of banishment for yourself and your family.Overcome with grief at this terrible news, and filled with self-reproach for the peaceful happiness of her own life, the solitude of the place became insupportable, and she at once returned to Turin.

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