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TWO:"May I tell you?"

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:"This is the road by which the Tartars went to the conquest of China,[Pg 385] and there is a story that the empire was lost in consequence of a woman. The Chinese were very much afraid of the Tartars, and they built the Great Wall to keep them out of the country. But a wall would be of no use without soldiers to defend it, and so it was arranged that whenever the Tartars were approaching, a signal should be sent along the towers, and the army would come to Pekin to defend 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:He waddled swiftly along, and, to Arthur's great disappointment, disappeared round the corner of the hedge, so that it was impossible to get more than a fleeting glimpse of that fascinating object at the back of his head. But he was still speaking."If it weren't for Charlotte," whispered the Lieutenant, "I could swear she was created for Ned Ferry!" and when I shook my head he, too, declared "No, no! if ever a match was made on high Charlotte was made for him and he for Charlotte; but, oh, Lord, Lord! Reach-hard Thorndyke Smith, how is this thing going to end?"

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:Is that all, then? he asked.The party rested a portion of a day at Hakone, and then went on their way. Travelling by cango had become so wearisome that they engaged a horse-train for a part of the way, and had themselves and their baggage carried on the backs of Japanese steeds. They found this an improvement on the old plan, though the horses were rather more unruly than the cango coolies, and frequently made a serious disturbance. Occasionally, when the train was ready to start, the beasts would indulge in a general kicking-match all around, to the great detriment of their burdens, whether animate or otherwise. The best and gentlest horses had been selected for[Pg 206] riding, and consequently the greatest amount of circus performances was with the baggage animals. The grooms had all they wished to attend to to keep the beasts under subjection, and not infrequently they came out of the contest with gashes and other blemishes on their variegated skins. But they showed great courage in contending with the vicious brutes, and it is said of a Japanese betto that he will fearlessly attack the most ill-tempered horse in the country, and not be satisfied till he has conquered him.

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