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TWO: "'The Assyrians came down like a wolf on the fold,It seemed as if the crashing of their marching feet was so loud that the rebels on the hill could not fail to hear it, and they held their breaths in painful expectancy of the volley. But they had gotten a rod or more into the entangling brush of the abatis, and were stumbling and crashing amid the baffling branches, before they heard the voice of the previous night command:

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:"I hain't got but left o' my bounty and first month's pay," said little Pete irresolutely, "and I wanted to send of it home to mother, but I'll"
  • 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:

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

THREE:"Great goodness," gasped Si at length, "they can't have gone far. They must be somewhere around."
  • 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:There was more scurrying, and when at last Si reached a clear space, he had only a portion of his squad with him, while Shorty was vowing he would not go a step farther until he had licked a railroad man. But the engines continued to whirl back and forth in apparently purposeless confusion, and the moment that he fixed upon any particular victim of his wrath, he was sure to be compelled to jump out of the way of a locomotive clanging up from an unexpected direction and interposing a train of freight cars between him and the man he was after."The next case I have is that of Serg't Josiah Klegg, implicated in the same affair," said Lieut. Bowersox.

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