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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 queen was radiantly beautiful in form and features. Her eyes were filled with tears. The scene and the words roused the zeal of these wild Magyar warriors to the highest pitch. They drew their sabres, flourished them over their heads, and with united voice shouted Moriamur pro nostro rege, Maria TheresaLet us die for our king, Maria Theresa. They always, writes Voltaire, give the title of king to their queen. In fact, no princess ever better deserved that title.Both father and son had become by this time fully satisfied that their tastes and characters were so different that it was not best for them to live near each other. The prince spent much of his time with his flute. He also engaged in quite a wide range of reading to occupy the listless hours. Works of the most elevated and instructive character especially interested him, such as history, biography, moral and intellectual philosophy, and polite literature in its higher branches of poetry and the drama. What mankind have done and been in this world, writes Carlyle, and what the wisest men, poetical or other, have thought about mankind and their world, this is what he evidently146 had the appetite forappetite insatiable, which lasted him to the very end of his days.
  • 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:Frederick found himself plunged into the midst of difficulties and perils which exacted to the utmost his energies both of body and of mind. Every moment was occupied in strengthening his posts, collecting magazines, recruiting his forces, and planning to circumvent the foe. From the calm of Reinsberg he found himself suddenly tossed by the surges of one of the most terrible tempests of conflict which a mortal ever encountered. Through night and storm, almost without sleep and without food, drenched and chilled, he was galloping over the hills and through the valleys,244 climbing the steeples, fording the streams, wading the morasses, involved in a struggle which now threatened even the crown which he had so recently placed upon his brow. Had Frederick alone suffered, but few tears of sympathy would have been shed in his behalf; but his ambition had stirred up a conflict which was soon to fill all Europe with the groans of the dying, the tears of the widow, the wailings of the orphan.But Frederick did not seem to think himself at all bound by his treaty obligations with France to refrain from entering into secret arrangements with the foe which would promote his interests, however antagonistic those arrangements might be to his assumed obligations. He was the ally of France in the attempt to wrest territory from the young Queen of Austria, and to weaken her power. His armies and those of France were acting in co-operation. Frederick now proposed to the common enemy that, if Silesia were surrendered to him, he would no longer act in co-operation with his ally; but, that France might not discover his perfidy, he would still pretend to make war. The Austrians were to amuse themselves in defending Neisse from a sham siege until the pleasant weeks of autumn were gone, and then they were to march, with all their guns and ammunition, south to Vienna, there to fight the French. Frederick, still assuming that he was the ally of France, was to avail himself of the excuse that the season of ice and snow was at hand, and withdraw into winter quarters. Such, in general, were the terms which Frederick authorized his minister, Goltz, to propose to Lord Hyndford, as the agent of England and Austria.
  • 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).