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TWO:All this from his oscillating head, through his set teeth, in one malign monotone. As he quoted the preacher he mechanically drew his revolver. There was no bravado in this; he might lie, but he did not know how to sham; did not know, now, that his face was drawn with pain. Holding the weapon in one hand, under his absent gaze he turned it from side to side on the palm of the other. I put out my hand for it, but he dropped it into the holster and tried to return my smile.

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:Not because of this speech, but of a soft rubbing sound on the window-sill behind me, my heart turned cold. Yet there I saw a most welcome sight. Against the outer edge of the sill an unseen hand was moving a forked stick to and fro. The tip of one of its tines was slit, in the slit was a white paper, and in the fork hung the bridle of my horse. I glided to the window. But there bethinking me how many a man had put his head out at just such a place and never got it back, I made a long sidewise reach, secured the paper, and read it.Keeling nodded towards the room where the hands had become busy again. He knew she had heard, overheard if you will, and since she did not choose to give her answer herself, he did not choose to convey the invitation to her again. Some faint stirrings of human relationship began at that moment to enter into living existence, for each set up their little screen of pride. Neither would have done that had there not been something, ever so small, to screen.

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

THREE:Ten minutes later it had risen a few hundredths of a degree. The rise was small, but it was a rise. In another ten minutes another gain was perceptible.
  • 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:As the quartermaster lifted out a pair of brogans as broad as they were long, there came a cry of protestation from the freight-car group, that brought the entire herd of rustics from the woodpile and the locomotive. Miss Harper rose behind her nieces, tall, slender, dark, with keen black eyes as kind as they were penetrating. "My boy!" she cried, "you cannot wear those things!"

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