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TWO:"Me!--No, sir. But you spoke as if--"

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:He sat down on the couch again. "Perhaps it is just as well that I did believe in the Clockwork man from the first; for while you have been going through these unpleasant experiences I have been thinking very hard, and have actually arrived at certain conclusions which are, I venture to think, amply confirmed by your story. That is why I have shown no surprise at your statements. The Clockwork[Pg 175] man is indeed true to his type as I have imagined him; he is the very embodiment of the future as I have long envisaged it."
  • 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:"What do you suppose it was? It was mutton, which is kept boiling in a pot from morning till night; and as fast as any is taken out, or the soup boils down, they fill the kettle up again. Mutton is very cheap here, as sheep are abundant and can be bought at the purchaser's own price, provided he will keep himself within reason. Great numbers of sheep are driven to Pekin for the supply of the city, and we met large flocks at several points on the road. Their wool has been exported to England and America; but it is not of a fine quality, and does not bring a high price.

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

THREE: "We have seen so many things since we came here that I don't exactly know where to begin in telling the story of our sight-seeing. The names by which this city is known are so numerous that the reader of Japanese history of different dates is liable to be puzzled. Many of the natives speak of it as Miako, or the Capital; others have called it, and still call it, Saikio, or the Central City, and others know it only as Kioto, or the Western Capital. This last name has become the official one since the removal of the Mikado to Yeddo, which then became Tokio, or the Eastern Capital. But, by whatever name we know it, the city is a most delightful one, and the traveller who comes to Japan without seeing it is like one who goes to New York without visiting Central Park, or a stranger in Boston who does not see the famous Common. In many of its features Kioto is superior to Tokio, and any one of its inhabitants will[Pg 292] tell you so. The city stands on a plain of nearly horseshoe shape, the mountains almost encircling it and giving an abundance of charming views. On one side the houses climb a considerable distance up the slopes, so that you may sit on a balcony and see Kioto lying at your feet.
  • 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 Captain says there are indications of a water-spout to-morrow; and perhaps we may be destroyed by it."

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