ここから本文です
TWO: LANTERN-MAKER AT KIOTO. LANTERN-MAKER AT KIOTO.

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:Its my Helper, he cried, my sly little Helper. Then pushing back his chair, he took off his evening shoes, and putting on the slippers went solemnly round the table, saying to each of his hosts and fellow-guests, May I introduce you to my slippers? But when he came to Alice he said, I think you and my slippers have met before! There was never anything so deliciously playful.... But when he had padded back to his place, Keeling saw poor Alices eye go wandering, looking at every one in turn round that festive table except{308} Master. Finally, for one half second, her eye rested on him, and Keeling, as one of those who run, could read, and his heart went out to poor Alice. She was prodigiously silly, yet that one self-revealing glance decorated her. She loved, and that distinguished and dignified her.

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

THREE:A Japanese servant, who spoke English, was engaged from the hotel to accompany the party during their journey. He was sent to find a junk that was about to leave for Osaka, and in half an hour he returned with the captain of one. It was soon settled that he was to bring his craft to the anchorage near the hotel during the afternoon, and be ready to receive his passengers and their luggage at daylight if the wind held good. The[Pg 272] servant, who said he was named "John" by the first European that ever employed him, and had stuck to it ever since, was kept busy during the afternoon in making preparations for the journey, as it was necessary to take a stock of provisions very much as the party had equipped themselves when they went to ascend Fusiyama. Everything was arranged in time, and the trio went to bed early, as it would be necessary to rise before the sun, and they wanted to lay in a good supply of sleep.
  • 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:"From him and the likes of him! Not that he loves her; that's the difference between them two cotton-mouth moccasins; Ned Ferry, hell grind him! does--or thinks he does; that other whelp don't, and knows he don't; he's only enam'--"

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