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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:There fell a moment's pause. And it was broken by the sound of clashing as of many cymbals, the clatter of hoofs, the rattle of bouncing wheels, and around the corner of the line there came tearing a wagon loaded with milk tins. A wild-eyed man, hatless, with his hair on end, lashed his ponies furiously and drew up all of a heap, in front of the commanding officer's quarters.
  • 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:Whilst Dumouriez had thus overrun the Netherlands, other French generals had been equally pushing on aggressions. Custine, with about twenty thousand men, had marched upon the German towns on the Rhine; had taken Spires, Worms, and Mayence by the 21st of October. These towns abounded with Democrats, who had imbibed the grand doctrine of the Rights of Man, and laboured, to their cost, under the same delusion as the Belgiansthat the French were coming solely for their liberation and advantage. Custine advanced to Frankfort-on-the-Main, which he plundered without mercy. Custine called loudly for co-operation from Kellermann; but Kellermann not complying, he was superseded by Beurnonville, who was ordered to take Trves. He attempted it, but too late in the season, and failed. Custine, who had advanced too far from the main army to support his position, still, however, garrisoned Frankfort with two thousand men, and took up his own quarters at Ober-Ursel and Homburg, a little below Frankfort, in the commencement of December.

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

THREE:Now, I wonder if that is Mr. Everdailor if its somebody else? thought Larry, correcting for a tendency of the nose to fall away."Yes he is. And I put him there." He left her to what he saw was her belief that it was because of the Kirby affair. "You'll see when you get back. And I'll put you there, too, if I care to. The best chance you have is to do as I tell you."
  • 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:Landor held up a silencing hand. "If you have any explanations that you care to make, that it would be worth any one's time to listen to, you may keep them for a judge advocate." He pointed to the door.WALPOLE'S QUARREL WITH TOWNSHEND. (See p. 60.)

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