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TWO:AN EXCURSION TO DAI-BOOTS AND ENOSHIMA.Keeling saw her out of the corner of his eye just shake her head at her brother, and she instantly changed the subject. The reason seemed clear enough in the midst of these walls of books that had no such decoration. But she need not have shown such delicacy, he thought to himself, for he had no notion of ordering a plate from her. And very soon she rose.

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:He looked at his watch, not deriving any impression from it, then back at her.He looked directly at Arthur. "And dreaming," he added. "We dream, you know."

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

THREE:IV THREE DAYS' RATIONSCharlotte did not move an eyelash. Gradually a happy confidence lighted her face. "Freedom or prison is to me a secondary question. I came here determined to use only the truth. No wild creature loves to be free more than I do. I want to go back into our lines, and to go at once; but--I am Charlotte Oliver."
  • 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:"Death," said the Doctor, speaking from knowledge rather than from symbolical conviction.Her husband decided that it was her mother she wished to talk about, and interrupted.

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