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TWO:"Ah!" was his quick response, "it crossed mine, like-wise. But, you know, this life we have to live, it is never for two people only."

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:
  • 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 Countess's eyes flamed again suddenly. Hetty, watching, was utterly puzzled. What was there in this trivial conversation that held this woman almost breathless? She had the air of one who has taken a great resolution. She seemed like a man face to face with death, who sees a way out.The second day out the boys began to repeat all the poetry they could remember about the sea, and were surprised at the stock they had on hand. Fred recalled something he had read in Harper's Magazine, which ran as follows:

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

THREE:Keeling pushed back his chair as he often did when he was disposed for a few minutes talk, putting a gap between himself and his business table. He gave her a smile and a long look."Here I am," the thin voice echoed faintly. The constable wheeled round sharply and became aware of a vague, palpitating mass, hovering in the dark mouth of the archway. It was like some solid body subjected to intense vibration. There was a high-pitched spinning noise.
  • 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:

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