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TWO:He peered ahead.

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:On the Rhine, the war was carried on quite into the winter. The King of Prussia did not stay longer than to witness the surrender of Mayence; he then hurried away to look after his new Polish territory, and left the army under the command of the Duke of Brunswick. Brunswick, in concert with Wurmser and his Austrians, attacked and drove the French from their lines at Weissenburg, took from them Lauter, and laid siege to Landau. Wurmser then advanced into Alsace, which the Germans claimed as their old rightful territory, and invested Strasburg. But the Convention Commissioners, St. Just and Lebas, defended the place vigorously. They called forces from all quarters; they terrified the people into obedience by the guillotine, Lebas saying that with a little guillotine and plenty of terror he could do anything. But he did not neglect to send for the gallant young Hoche, and put him at the head of the army. Wurmser was compelled to fall back; Hoche marched through the defiles of the Vosges, and, taking Wurmser by surprise, defeated him, made many prisoners, and captured a great part of Wurmser's cannon. In conjunction with Pichegru, Dessaix, and Michaud, he made a desperate attack, on the 26th of December, on the Austrians in the fortified lines of Weissenburg, whence they had so lately driven the French; but the Duke of Brunswick came to their aid, and enabled the Austrians to retire in order. Hoche again took possession of Weissenburg; the Austrians retreated across the Rhine, and the Duke of Brunswick and his Prussians fell back on Mayence. Once there, dissatisfied with the Prussian officers, he resigned his command, he and Wurmser parting with much mutual recrimination. Wurmser was not able long to retain Mayence; and the French not only regained all their old positions, before they retired to winter quarters, but Hoche crossed the lines and wintered in the Palatinate, the scene of so many French devastations in past wars. The French also repulsed the enemy on the Spanish and Sardinian frontiers.

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

THREE:At the very time he received this appointment he was actually in correspondence with Colonel Robinson, an officer of General Clinton's staff, declaring that he was become convinced of the more righteous cause of the mother country, and that he was prepared to testify this by some signal service to his king. It was at the beginning of August of the present year when Arnold assumed his command at West Point; and Clinton lost no time in opening a direct correspondence with him, through which such singular advantages were offered. Sir Henry Clinton employed as his agent in this correspondence a young officer of high promise in his profession and of considerable literary talents, Major John Andr, Adjutant-General and aide-de-camp to Sir Henry. As Clinton was naturally anxious to bring this hazardous correspondence to a close, he pressed Arnold to come to a speedy decision, offering him rank in the army and a high reward in return for the promised servicesnamely, the surrender of West Point, with all its dependent forts and stores, including, as a matter of course, the command of the Hudson, and the terror and distrust which this act would spread through the American army. The absence of Washington at the meeting with Rochambeau at Hartford was seized on as a proper opportunity for a personal and final conference on the subject. Major Andr was selected by General Clinton to meet Arnold on neutral ground. The place selected was on the western bank of the Hudson, and Clinton strongly enjoined him to enter on no account within the American lines, to assume no disguise, nor to be the bearer of any written documents. Day dawned before the whole preliminaries were settled, though the chief point was determinednamely, that West Point should be surrendered to the English on the following Monday. Andr was prevailed on to remain with Arnold the greater part of the day; and then, on going down to the shore, he found that the boatman who had brought him out refused to carry him back. When Andr returned to Arnold at Smith's house, he gave him a pass, and advised him to travel by land to King's Ferry, and there to cross. He insisted that for this purpose he must assume a disguise, and travel under his assumed name of John Anderson. So little was Andr apprehensive of danger, that he not only disobeyed the injunction of his[278] commander-in-chief in this particular, but in the far more important one of carrying written papers, which he concealed in his boot.
  • 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:

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