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TWO:

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:The one proposed for Louise was the second son of her uncle, the Marchal Mouchy de Noailles, a lad of sixteen, who bore the title of Vicomte de Noailles, and was in rank, fortune, and character an extremely suitable marriage for her.
  • 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 Ambassador gave her his arm, told her to be sure to kiss the hand of the Empress, and they walked across the park to the palace, where, through a window on the ground floor, they saw a girl of about seventeen watering a pot of pinks. Slight and delicate, with an oval face, regular features, [125] pale complexion, and fair hair curling round her forehead and neck, she wore a loose white tunic tied with a sash round her waist, and against the background of marble columns and hangings of pink and silver, looked like a fairy.

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

THREE:They may have left out something, replied he, laughing. I have no time to lose, and I tell you that I wish to be a great-grandfather as soon as possible.
  • 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:Avait il des chemises?

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