ここから本文です
TWO:As the sun sank the citadel absorbed the gold and purple glory, and looked as though it were of some translucent half-fused metal; the towers and temples with their decoration of tiles blazed[Pg 204] against the pure sky. High over Mandir a little balcony with spindle columns, overhanging the precipice at a giddy height, caught the last rays of Surya, and flashed with a gem-like gleam above Gwalior, which was already shrouded in the blue haze of night.

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:Afternoon, in the bazaar, in the warm glow of the sinking sun, wonderfully quiet. No sound but that of some workmen's tools; no passers-by, no shouting of voices, no bargaining. A few poor people stand by the stalls and examine the goods, but the seller does not seem to care. Invisible guzlas vibrate in the air, and the piping invitation of a moollah falls from the top of a minaret.
  • 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:There was at the top of the temple a sarcophagus in a shrine, on which were masses of impalpable silk gauze embroidered with gold, which looked like a peacock's breast, so subtle were the transparent colours lying one above anothergreen, blue, and yellow predominating, gauze so light that the slightest breath set it floating in glistening and changing hues; and on the snowy white pavement of the floor was strewn a carpet of very pale lilac lilies and mindi flowers.

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

THREE:[Pg 205]
  • 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:Two old women had a quarrel, and all the neighbourhood came out to look on.

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