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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:[See larger version]He was proceeding in all apparent safety when, approaching the village of Tarrytown, three militiamen suddenly sprang forward, and, seizing his bridle, demanded who he was. Andr, being on neutral ground, exceeded his former incaution, and instead of ascertaining whether the men were Americans, in which case Arnold's pass was his security, he asked the men who they were, and being answered "From below," which was the pass for New York, replied, "And so am I." By this, discovering that he was a British officer, the men began to search him, and soon made prize of his fatal papers. Warned in time, Arnold escaped on board a British man-of-war. But very different was the fate of Major Andr. General Clinton, the moment he was aware of his arrest, sent a letter to Washington, stating that Andr had gone on shore under a flag of truce, and, at the time of his arrest, was travelling under a pass from Arnold, the commander of the district. Clinton therefore requested Washington to liberate Andr immediately. To this letter Washington did not reply till after a lapse of four days, and after the board of officers appointed for the purpose had declared Andr a spy. He even rejected the last prayer of the gallant soldier that he might be spared the gibbet, and had him hanged.
  • 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.
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The aromatic polyimide membrane is highly permeable to water vapor but less permeable to vapors of organic compounds such as alcohol etc.

THREE:Murat hastened in disguise to Naples to consult with his wife, who had as much courage and more judgment than he had; but this availed him nothing. On the 20th of May his generals signed a convention with the Austrians at Casa Lanza, a farmhouse near Capua, to surrender Capua on the 21st, and Naples on the 23rd, on condition that all the Neapolitan officers who took the oath of allegiance to King Ferdinand should retain their respective ranks, honours, and estates. At this news Murat fled out of Naples, and, with a very small attendance, crossed over in a fisherman's boat to the island of Ischia, and his wife went on board the vessel of Commodore Campbell, which, however, she was only able to effect by a guard of three hundred English sailors and marines, for the lazzaroni were all in insurrection. Commodore Campbell, having received Caroline Buonaparte, her property and attendants on board his squadron, then sailed to Gaeta, where were the four children of Murat, took them on board, and conveyed them altogether to Trieste, the Emperor of Austria having given Madame Murat free permission to take up her residence in Austria, under the name of the Countess of Lipano.
  • 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 siege of Badajoz was again resumed, but with the same almost insurmountable obstacle of the deficiency of the requisite material for siege operations; and on the 10th of June, learning that Marmont, the successor of Massena, was marching south to join Soult, who was also to be reinforced by Drouet's corps from Toledo, Wellington fell back on Campo Mayor, gave up the siege of Badajoz, and gathered all his forces together, except a considerable body of British and Portuguese, whom he left at Alemtejo. Marmont, observing Wellington's movement, again retired to Salamanca. Some slight man?uvring followed between the hostile commanders, which ended in Wellington resuming his old quarters on the river Coa. On this, Soult also retired again to Seville.

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