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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:Sobs were still thick in Rose's throat, when they came to Handshut's cottage, a little tumble-down place, shaped like a rabbit's head. She stopped."You mustn't fret, Reuben."
  • 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:Calverley then retired, and those whom the matter concerned, withdrew to an apartment, and gave their opinions according to the view in which the thing appeared to them.

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

THREE:He fairly beat down on Realf, who was lithe enough generally to avoid him, but not experienced enough to do so as often as he might. Every time Reuben struck him, the floor seemed to rush up to his eyes, and the walls to sag, and the house to fill with smoke. Pete danced round them silently, for while his sympathies were with his father his sporting instincts bade him keep outwardly impartial. He was disgusted with their footwork, indeed their whole style outraged his bruising[Pg 206] ideals; but it pleased him to see how much Reuben was the better man.Then when he was about a hundred feet from the house the door opened stealthily and a man slunk out. The gleam of a street lamp passed over his face, and Dansay rushed at him with his fists up.
  • 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:"What is it?" mumbled Albert, himself again for a moment.

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