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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:Frederick immediately sent an announcement of the victory to his friend Voltaire. It does not appear that he alluded to his own adventures. Voltaire received the note when in the theatre at Lisle, while listening to the first performance of his tragedy of Mahomet. He read the account to the audience between the acts. It was received with great applause. You will see, said Voltaire, that this piece of Mollwitz will secure the success of mine. Vous verrez que cette piece de Mollwitz fera russir la miene.Sire,Yesterday I was in terrible alarms. The sound of the cannon heard, the smoke of powder visible from the steeple-tops here, all led us to suspect that there was a battle going on. Glorious confirmation of it this morning. Nothing but rejoicing among all the Protestant inhabitants, who had begun to be in apprehension from the rumors which the other party took pleasure in spreading. Persons who were in the battle can not enough celebrate the coolness and bravery of your majesty. For myself, I am at the overflowing point. I have run about all day announcing this glorious news to the Berliners who are here. In my life I have never felt a more perfect satisfaction. One finds at the corner of every street an orator of the people celebrating the warlike feats of your majestys troops. I have often, in my idleness, assisted at these discourses; not artistic eloquence, it must be owned, but gushing full from the heart.
  • 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:And then, grumbling and blaming, would alter the camp till it was all out of rule, and then say,It was all in vain. On Sunday evening, September 5th, as the condemned young man was sitting alone in his prison cell, sadly awaiting his doom, yet clinging to hopes of mercy, an officer entered with the startling intelligence that the carriage was at the door to convey him to the fortress of Cüstrin, at a few leagues distance, where he was to be executed. For a moment he was greatly agitated. He soon, however, regained his equanimity. It must indeed have been a fearful communication to one in the107 vigor of health, in the prime of youth, and surrounded by every thing which could render life desirable. Two brother-officers and the chaplain accompanied him upon this dismal midnight ride. Silence, pious conversation, prayers, and occasional devotional hymns occupied the hours. The dawn of a cold winters morning was just appearing as they reached the fortress.

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

THREE:
  • 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:

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