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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:In fine, my dear marquis, the job ahead of me is hard and difficult, and nobody can say positively how it will all go. Pray for us; and dont forget a poor devil who kicks about strangely in his harness, who leads the life of one damned.Well, said he, let him quit soldiering then, and give back his regiment to the king. But quiet yourself as to the fears you may have about him if he do; for I know, by certain information, that there will be no blood spilt.
  • 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:

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

THREE:
  • 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:We now enter upon the third Silesian war, usually termed in history The Seven Years War. For four years Frederick had been aware that a coalition was secretly forming against him. Maria Theresa wished, with ardor which had never for one moment abated, to regain Silesia. All the other European powers, without exception, desired to curb Frederick, whose ambition they feared. They were well aware that he was taking advantage of a few years of peace to replenish his treasury, and to enlarge his army for new conquests. As we have before stated, Frederick, by bribery, had fully informed himself of the secret arrangements into which Austria, Russia, Poland, and other powers were entering for the dismemberment of his realms. It is in vain to attempt to unravel the intricacies of the diplomacy which ensued.Frederick wrote to Wilhelmina: Voltaire picks Jews pockets, but he will get out of it by some somersault.

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