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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:He took up his paper again. "He ain't told me the whole thing yet," he said.
  • 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:Dick, who saw something to make light of in any situation, turned with his plump face cracked by a broad grin.Presently he walked to an old soap box holding metal odds and ends, washers, bolts and so on. This he up-ended. He sat down, his lean jaws working as he chewed his own gum slowly. Around him, like three detectives watching the effect of a surprise accusation, stood the chums.

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

THREE:Now well dive to where the hydroplane can see us, and the dive will signal the yacht that were the airplane theyll be watching for, Dick decided.
  • 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:Besides the miscellaneous poets, the dramatic ones numbered Congreve, Vanbrugh, Farquhar, Colley Cibber, Nicholas Rowealready mentionedSavage, Lansdowne, Ambrose Philips, and others. In many of the plays of these authors there is great talent, wit, and humour, but mingled with equal grossness. Congreve's dramas are principally "The Old Bachelor," "The Incognita," "The Double Dealer," "The Way of the World," comedies, and "The Mourning Bride," a tragedy. Vanbrugh, the celebrated architect, produced "The Relapse," "The Provoked Wife," "The Confederacy," "The Journey to London," and several other comedies. Farquhar's principal plays are "The Beaux's Stratagem," "Love and a Bottle," and "The Constant Couple." Savage was the author of the tragedy of "Sir Thomas Overbury;" Nicholas Rowe, of five or six tragedies and one comedy, the most popular of which are "The Fair Penitent" and "Jane Shore." Rowe also translated Lucan's "Pharsalia." As for Colley Cibber, he was a mere playwright, and turned out above two dozen comedies, tragedies, and other dramatic pieces. Lord Lansdowne was the author of "The She-gallants," a comedy, and "Heroic Love," a tragedy of some merit; and John Hughes wrote "The Siege of Damascus," a tragedy, which long remained on the stage.There was a new treaty, just made to that end. It was the fiercest of all the Apache tribes, the Chiricahuas, that had hidden itself in the fastnesses of the Sierra Madre, two hundred miles south of the boundary line. Geronimo and Juh and Chato, and other chiefs of quite as bloody fame, were with him. To capture them would be very creditable success. To fail to do so would entail dire consequences, international complications perhaps, and of a certainty the scorn and abuse of all the wise men who sat in judgment afar off.

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