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TWO:"But you're only a Corporal, while I'm a Sergeant," protested Bob. "'Taint natural that you should go ahead of me. Why can't you and I run it together, you next to me? That's the correct thing."

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:A master asks us to count, and then to do things with the numbers we use in our counting. This is called arithmetic. We must do things with the numbers every day, and if we do not the masters are not happy with us. This arithmetic is hard: it is all new. Yet if I do it right I do not find more food or a better place or any thing I want. I do not see what is the use of this arithmetic.
  • 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:"I am not afraid," Cadnan said. "I speak the truth, no more. Masters are good: it is a great truth."
  • 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:"No, Shorty," said the prudent Deacon. "Our first duty is to ourselves. We kin help them by gittin' you and Si on your feet. We can't feed the whole Army o' the Cumberland, though I'd like to."

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