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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:98 Pretty soon the king came back, and we, his children, ran to pay our respects to him, by kissing his hands. But he no sooner noticed me than rage and fury took possession of him. He became black in the face, his eyes sparkling fire, his mouth foaming. Infamous wretch! said he, dare you show yourself before me? Go and keep your scoundrel brother company.
  • 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:Have I need of peace? Let those who need it give me what I want, or let them fight me again and be beaten again. Have they not given whole kingdoms to Spain? And to me they can not spare a few trifling principalities. If the queen do not now grant me all I require, I shall, in four weeks, demand four principalities more. I now demand the whole of Lower Silesia, Breslau included. With that answer you can return to Vienna.370 And now the Prussians from the centre press the foe with new vigor. Leopold, at the head of his victorious division, charged the allied troops in flank, pouring in upon them his resistless horsemen. Whole regiments were made prisoners. Ere nightfall of the short December day, the whole allied army, broken and disordered, was on the retreat back to Dresden. The night alone protected them from utter ruin. They had lost six thousand prisoners, and three thousand in killed and wounded.92

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

THREE:On Sunday, April 5, 1778, Frederick reviewed these troops, and addressed his officers in a speech, which was published in the newspapers to inform Austria what she had to expect. Eager as Frederick was to enlarge his own dominions, he was by no means disposed to grant the same privilege to other and rival nations. The address of Frederick to his officers was in reality a declaration to the Austrian court.
  • 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).