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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:What is the matter? she exclaimed.It was, of course, obvious that this was done in order that the carriage and servants of Mme. Le Brun being seen at night at the h?tel des Finances, the scandal might be diverted from Mme. S to the innocent owner of the carriage.
  • 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:He was extremely kind to Mme. Le Brun, whom he always called ma bonne amie; she was often at his house, though she did not care for the great dinners of never less than thirty people, which were always at seven oclockin those days considered a late hour.

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

THREE:The Princess had therefore, as soon as she could get away from Austria, joined her uncles and aunts and married the Duc dAngoulme, concentrating all her affection upon those remaining members of her family, who received her with the deepest joy and tenderness.PREFACE
  • 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:Monsieur le Comte, your husband, will lose his head on the scaffold; you will leave France to live without resources in a foreign land; you will work for your living, but after long years of exile you will return to France. You will marry an ambassador, but you will have other vicissitudes.

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