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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 stranger's eyes that now gazed upon her, beheld her as a lovely, interesting creature; but Calverley, who had not seen her since the day that Edith was arrested, saw that the rich glow which used to mantle on her cheek, had given place to a sickly paleness. It is true, that as she entered the court, there was a faint tinge upon that cheek, but it fled with the momentary embarrassment which had caused it. That full dimpled cheek itself was now sunken, the lips were colourless, and the eyes dim.
  • 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:"Taste it"

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

THREE:"Go with him! Who is he? His purpose cannot be an honest one, or he would not conceal himself. Who is he, Stephen?" she repeated in a loud voice, and clinging more closely to the hand he was striving to disengage.
  • 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:It never occurred to her to throw these young people together, and give the girl a chance of fighting her father and satisfying the vague longings for adventure and romance which had begun to put torment into her late twenties. She often told her it was a scandal that she had never been allowed to know men, but her own were too few and useful to be sacrificed to the forlorn. Besides, Caro had an odd shy way with men which sometimes made them laugh at her. She had little charm, and though not bad-looking in a heavy black-browed style, she had no feminine arts, and always appeared to the very worst advantage.

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