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TWO:"I must see further into this," Hetty told herself. "When this honoured guest comes I will creep downstairs and listen. It's not a very nice thing to do, but if ever the end justifies the means, surely this is a case in point."

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:"It does, sir," Prout went on. "The question of handwriting is established. How those notes came into your possession we have yet to find out."

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:It is probable that the philanthropic tendencies of the Stoics were, to a great extent, neutralised by the extreme individualism which formed the reverse side of their philosophical character; and also by what may be called the subjective idealism of their ethics. According to their principles, no one can really do good to any one else, since what does not depend on my will is not a good to me. The altruistic virtues are valuable, not as sources of beneficent action, but as manifestations of benevolent sentiment. Thus, to set on foot comprehensive schemes for the relief of human suffering seemed no part of the Stoics business. And the abolition of slavery, even had it been practicable, would have seemed rather superfluous to one who held that true freedom is a mental condition within the reach of all who desire it,88 while the richest and most powerful may be, and for the most part actually are, without it. Moreover, at the time when41 philosophy gained its greatest ascendency, the one paramount object of practical statesmen must have been to save civilisation from the barbarians, a work to which Marcus Aurelius devoted his life. Hence we learn without surprise that the legislative efforts of the imperial Stoic were directed to the strengthening, rather than to the renovation, of ancient institutions.89 Certain enactments were, indeed, framed for the protection of those who took part in the public games. It was provided, with a humanity from which even our own age might learn something, that performers on the high rope should be ensured against the consequences of an accidental fall by having the ground beneath them covered with feather beds; and the gladiators were only allowed to fight with blunted weapons.90 It must, however, be noted that in speaking of the combats with wild beasts which were still allowed to continue under his reign, Marcus Aurelius dwells only on the monotonous character which made them exceedingly wearisome to a cultivated mind; just as a philosophic sportsman may sometimes be heard to observe that shooting one grouse is very like shooting another; while elsewhere he refers with simple contempt to the poor wretches who, when already half-devoured by the wild beasts, begged to be spared for another days amusement.91 Whether he knew the whole extent of the judicial atrocities practised on his Christian subjects may well be doubted; but it maybe equally doubted whether, had he known it, he would have interfered to save them. Pain and death were no evils; but it was an evil that the law should be defied.92"I can do all that for myself presently," she said. "I--I was lured on a fool's errand, and I have had a narrow escape of my life. Don't ask any questions yet. Go to the sideboard and get me brandy; there are some syphons of soda water there. Give me a lot, fill the glass; more brandy."

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