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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:Maitrank, in his shirtsleeves, was smoking one of his black cigars. He made no apology for his attire nor for the rank tobacco between his yellow teeth. How different the last time when they had met in the millionaire's office.The man got more and more excited, but then he was more than "half-seas over." The smoke made him cough and he stuck in the middle of his "swine." He made me shudder, and I hastened to pull out a packet of cigarettes, some of which I gave to him and his mates. In consequence the two others became more communicative, and in touching harmony assured me that:
  • 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:"And meanwhile the policeman on the beat has been at least twice past the spot where the body ought to be," Balmayne sneered. "People in fits don't get out of the way and then come back again."

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

THREE:The car flashed round the corner of Lytton Avenue on two wheels. There was a jolt and a crash as the flying machine went over a balk of wood laid across the road, and the next instant the occupants were rolling across the path. Just for the moment there was nobody in sight.I went to various other places, but there I could not even get a bit of bacon. So I made up my mind to starve for the present, and to make inquiries here and there about families whose acquaintances or friends had asked me to do so through the editor of De Tijd.
  • 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:Charlton rummaged on a table with his head down. Like a cat Leona sprang forward. Something bright glittered in the air. The man turned just in time to save the steel crashing between his ribs, it glanced off between his shoulders, there was a sharp spasm of pain as he fell. Just for an instant he was unconscious. Then, as suddenly as it had gone, reason came back to him. He heard the trip of feet down the stairs, he heard the rattle and banging of a door. He was bleeding freely, but he managed to drag himself to the window.

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