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TWO:You are the first who have asked any favor of me on Silesian ground. Your request shall be granted.

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:I knew that the Duke De Choiseul would content himself with persuading the King of France that the King of Prussia was an irreconcilable enemy, whom it was therefore necessary, if possible, to annihilate.On Wednesday, April 12, two days after the battle, Frederick wrote to his sister Wilhelmina from Ohlau as follows:
  • 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:On the 14th of August Frederick had reached Liegnitz. His foes surrounded him in such numbers that escape seemed impossible, and destruction sure. General Loudon, with thirty-five thousand allies, was scarcely a mile east of him. General Lacy, with an immense swarm of cavalry, was at the distance of but a few thousand yards on the west. General Daun, with his immense army, approaching from the southwest, had taken possession of Liegnitz. Frederick was encamped upon some heights a few miles east of the city. To human view, the position of his Prussian majesty was desperate.

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

THREE:The crowd heard what he said. With bursts of laughter they tore the caricature in pieces, scattered it to the winds, and greeted the king, as he rode away, with enthusiastic shouts of Our Fritz forever.
  • 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: Choose whatever apartment in our house you like. Regulate yourself all that you want, either for comfort or luxury. Make your arrangements in such a way as that you may be happy and comfortable, and leave it to me to provide for the rest. You will be always entirely free, and master to choose your own way of life. My only pretension is to enchain you by friendship and kindness.

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