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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:Landor and his lieutenant jumped up and ran down the walk. "What's all this, Dutchy?" they asked.
  • 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 saw that the game had reached that stage where he must play his trump card, if he were to have any chance. "You are a mean little thing," he laughed. "It is the Apache blood, I suppose.""We have tea at five," Mrs. Kirby told him, as they finished, and her husband started out to superintend and help with the digging of an acequia.

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

THREE:[Pg 24]Cairness watched how strong and erect and how sure of every muscle she was, and how well the blond little head looked against the dull blackness of the mother's hair. The child was in no way like Felipa, and it had never taken her place in its father's love. He was fond of it and proud, too; but, had he been put to the test, he would have sacrificed its life for that of its mother, with a sort of fanatical joy.
  • 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:Who feels too reckless to help himself?"

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