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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:But behold the caprice of Fortune. After a hundred preferences of my rivals, she smiles upon me, and packs off the hero of the hat and sword, whom the pope had blessed, and who had gone on pilgrimages. He skulks out of Saxony, panting like a dog whom the cook has flogged out of the kitchen.Sophie Dorothee tenderly loved her little Fritz, and, with a mothers fondness, endeavored to shield him, in every way in her power, from his fathers brutality. Wilhelmina also clung to her brother with devotion which nothing could disturb. Thus both mother and daughter incurred in some degree the hatred with which the father regarded his son. It will be remembered that the mother of Fritz was daughter of George I. of England. Her brother subsequently became George II. He had a son, Fred, about the age of Wilhelmina, and a daughter, Amelia, six months older than Fritz. The mother, Sophie Dorothee, had set her heart upon a double marriageof Wilhelmina with Fred,39 and of Fritz with Amelia. But many obstacles arose in the way of these nuptials.
  • 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:It is impossible, writes Lord Dover, not to perceive that the real reason of his conduct was his enmity to his son, and that the crime of the poor girl was the having assisted in making the sons existence more supportable. The intention of Frederick William apparently being that the infliction of so infamous a punishment in so public a manner should prevent the possibility of Fredericks ever seeing her again.14

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

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  • 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:On the 5th of May, after careful reconnoissance, Frederick crossed the Moldau several miles north of Prague. He went over upon pontoons unopposed, and thus effected a junction with his troops on the east side of the river. The Austrian army was drawn up on some formidable heights but a short distance east of the city. Their position was very strong, and they were thoroughly intrenched. On the 6th of May the dreadful battle of Prague was fought. For many years, as not a few of our readers will remember, it was fought over and over again upon all the pianos in Christendom. They will remember the awe with which, as children, they listened to the tumult of the battle, swelling forth from the ivory keys, with the rattle of musketry, the booming of the cannon, and the groans of the dyingsuch groans as even the field of battle itself could scarcely have rivaled. Formerly, my dear marquis, the affair of the 15th would have decided the campaign. At present it is but a scratch. A great battle must determine our fate. Such we shall soon have. Then, should the event prove favorable to us, you may, with good reason, rejoice. I thank you for your sympathy. It has cost much scheming, striving, and address to bring matters to this point. Do not speak to me of dangers. The last action cost me only a coat and a horse. That is buying victory cheap.151

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