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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:The secret was now out. The tidings flew in all directions that the King of Prussia was in Strasbourg incognito. The king, not yet aware of the detection, called upon the marshal. A crowd of officers gathered eagerly around. The marshal was much embarrassed in his desire to respect the incognito, and also to manifest the consideration due to a sovereign. No one yet ventured to address him as king, though there were many indications that his rank was beginning to be known. Frederick therefore decided to get out of the city as soon as possible. To conceal his design, he made arrangements to attend the theatre with the marshal in the evening. The marshal went to the theatre with all his officers. The building was crowded with the multitude hoping to see the king. Bonfires began to blaze in the streets, and shouts were heard of Long live the King of Prussia. Frederick hastily collected his companions, paid his enormous bill at the Raven, shot off like lightning, and was seen in Strasbourg no more.
  • 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:Frederick received the disastrous news on the 24th of July, the day after the calamity. In the exercise of an unusual spirit of forbearance, he sent word to the defeated general, It is not your fault; I dreaded something of the kind. The kings brother Henry was in command of a few thousand men near Bautzen, in Saxony. Frederick wrote to him to forward his troops immediately, so as to form a union with the retreating army under Wedell. Henry himself was to repair to the vicinity of Landshut, and take command of the army which was to be left in that vicinity confronting General Daun. The king took about thirty thousand picked troops, and hurried to the north to gather up by the way the troops of Henry and of Wedell, and with that combined force of forty-eight thousand men make a new attack upon the ninety-six thousand Russians.131He now began to speak of religion; and, with eloquent tongue, to recount what mischiefs scholastic philosophy had brought upon the world; then tried to prove that creation was impossible.

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

THREE:The next morning they learned that Lieutenant Katte had been arrested. All the private papers of Fritz were left, under Kattes charge, in a small writing-desk. These letters would implicate both the mother and the daughter. They were terror-stricken. Count Finckenstein, who was in high authority, was their friend. Through him, by the aid of Madam Finckenstein, they obtained the desk. It was locked and sealed. Despair stimulated their ingenuity. They succeeded in getting the letters. To destroy them and leave nothing in their place would only rouse to greater fury the suspicion and rage of the king. The letters were taken out and burned. The queen and Wilhelmina immediately set to work writing new ones, of a very different character, with which to replace them. For three days they thus labored almost incessantly, writing between six and seven hundred letters. They were so careful to avoid any thing97 which might lead to detection that paper was employed for each letter bearing the date of the year in which the letter was supposed to be written. Fancy the mood, writes Carlyle, of these two royal women, and the black whirlwind they were in. Wilhelminas dispatch was incredible. Pen went at the gallop night and day. New letters of old date and of no meaning are got into the desk again, the desk closed without mark of injury, and shoved aside while it is yet time.There are sometimes great and glorious objects to be attainedobjects which elevate and ennoble a nation or a racewhich warrant the expenditure of almost any amount of temporary suffering. It is not the duty of the millions to suffer the proud and haughty hundreds to consign them to ignorance and trample them in the dust. In this wicked world, where kings and nobles have ever been so ready to doom the masses of the people to ignorance, servitude, and want, human rights have almost never made any advances but through the energies of the sword. Many illustrious generals, who, with saddened hearts, have led their armies over fields of blood, have been among the most devoted friends and ornaments of humanity. Their names have been enshrined in the affections of grateful millions.
  • 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.
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Acetone, ethanol, methyl ethyl ketone, butanol, isopropyl alcohol, ethyl acetate, methyl isobutyl ketone, others (including hexane and toluene).