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TWO:If the sentry outside heard, he paid no attention. It was common enough for the horses to take a simultaneous fit of restlessness in the night, startled by some bat flapping through the beams or by a rat scurrying in the grain. In ten minutes more a flame had reached the roof. In another ten minutes the sentry had discharged his carbine three times, fire call had been sounded in quick, alarming notes, and men and officers, half dressed, had come running from the barracks and the line.Chapter 26

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:"Luncheon!" said Cairness, as he smoothed his hair in front of a speckled and wavy mirror, which reflected all of life that came before it, in sickly green, "cabalistic word, bringing before me memories of my wasted youth. There was a chap from home in my troop, until he deserted, and when we were alone we would say luncheon below our breaths. But I haven't eaten anything except dinner for five years.""No," he said, "I wouldn't like you to, and she wouldn't want it, I reckon." He dropped back into his usual speech. "She ain't any repentant sinner, by a good deal. But as Cairness wants me to keep an eye on her, and as she's sick, I wish you to let her stay in the house, and not to make a rumpus about it. If you really don't like to go near her, though," he finished, "I'll tell you what I'll do, I'll take her in her food myself, and nurse can clean out her room."
  • 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:And the great river of rock is there, too, frozen upon the land like some devouring monster changed by a Gorgon head into lifeless stone. It is a formidable barrier across the hardly less formidable bad lands. It can be crossed in places where it is narrowest, not quite a mile in width, that is. But horses slip and clamber, and men cut through the leather of their heaviest shoes.The Texan woman went back to the kitchen and finished cooking the supper for the hands—a charred sort of Saturnalian feast. "She can git her own dinner if she wants to," she proclaimed, and was answered by a chorus of approval.

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

THREE:
  • 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:On the next day they were in the flat, nearing the post. There was a dust storm. Earlier in the morning the air had grown suddenly more dry, more close and lifeless than ever, suffocating, and a yellow cloud had come in the western sky. Then a hot wind began to blow the horses' manes and tails, to snarl through the greasewood bushes, and to snap the loose ends of the men's handkerchiefs sharply. The cloud had thinned and spread, high up in the sky, and the light had become almost that of a sullen evening. Black bits floated and whirled high overhead, and birds beat about in the gale. Gradually the gale and the dust had dropped nearer to the earth, a sand mist had gone into every pore and choked and parched. And now the tepid, thick wind was moaning across the plain, meeting no point of resistance anywhere.

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