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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:Aix-la-Chapelle was crowded with emigrs, among whom she found many friends and relations. They met chiefly in the salon of her cousin, the Comtesse dEscars; every one had relations with the army of Cond, in prison, in deadly peril, or even already murdered. The society was chiefly composed of old men, priests and women, whose lives were a perpetual struggle with poverty hitherto unknown to them.
  • 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:Sheridan took the matter up, the postillions were examined, but all they said was that a strange gentleman had taken them to a public-house and bribed them to take the road they had followed. The hired servant had disappeared. Not wishing to spend the time or money necessary to bring this mysterious affair into a law court, they did nothing more about it, and never understood why it had happened, or what was intended, or anything concerning it.The death of her husband in 1834 was her last great sorrow, she survived him five years, and died in January, 1839, at the age of seventy-three, surrounded by those she loved best, who were still left her.

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

THREE:Marie Antoinette spoke to the latter about it, and of course he indignantly denied all complicity, but confessed that the libel had been sent him in an envelope, adding that he had thrown it into the fire, and if any of his people had been more imprudent he would dismiss them at once.
  • 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:De Pierre, de Pierre, de Pierre.She was happier now than she had been for a long time; she heard every now and then from her father and Rosalie, her husband was with her, and her love for the aunt, who was their good angel, ever increased. But still the terrible death of her mother, sister, and grandmother cast its shadow over her life, added to which was her uncertainty about Adrienne.

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