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TWO:DESTROYING THE LETTERS.

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:Frederick soon followed the Austrians with his whole army, hoping to bring them to a decisive battle. But General Neipperg was conscious that he was unable to cope with the Prussian army in the open field. For a week there was man?uvring and counter-man?uvring with great skill on both sides, General Neipperg baffling all the endeavors of Frederick to bring him to a general action.

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

THREE:His Prussian majesty rides much about, often at a rapid rate, with a pleasant business aspecthumane, though imperative; handsome to look upon, though with a face perceptibly reddish. His age, now thirty-eight gone; a set appearance, as if already got into his forties; complexion florid; figure muscular, almost tending to be plump.On quitting me he said, I hope, sir, you will leave me your name. I am very glad to have made your acquaintance. Perhaps we shall see one another again. I replied as was fitting to the compliment, and begged him to excuse me for having contradicted him a little. I then told him my name, and we parted.
  • 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:The next morning, taking with him a small escort, and leaving his army to follow with as much speed as possible, he rode rapidly down the western bank of the Oder to G?rgast, where he had an encampment of about fifteen thousand Prussian troops. At five oclock in the morning of Tuesday the two bands were united. He now had at his command thirty thousand men.456 Cüstrin was on the eastern bank of the Oder, near the confluence of the Warta. A few miles below Cüstrin, at Schaumburg, there were portions of a bridge across the Oder. Here the Russians had erected a redoubt. Frederick ordered a violent attack upon that redoubt. During the night, while the attention of the Russians was occupied by the assault, Frederick marched his army twelve miles farther down the river, and crossed, without any loss, at Güstebiese. His baggage train he left, carefully guarded, on the western bank of the river.

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