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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:"Then they all have 'medicine' on," Cairness continued, "redbird and woodpecker feathers, in buckskin bags, or quail heads, or prairie-dog claws. One fellow was making an ornament out of an adobe dollar. Every buck and boy in the band has a couple of cartridge belts and any quantity of ammunition, likewise new shirts and zarapes. They have fitted themselves out one way or another since Crawford got at them in January. I don't think there are any of them particularly anxious to come in."
  • 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.
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The aromatic polyimide membrane is highly permeable to water vapor but less permeable to vapors of organic compounds such as alcohol etc.

THREE:She sat considering deeply. She was rocking the baby, with its little fair head lying in the hollow of her shoulder, and Landor found himself wondering whether Felipa could ever develop motherliness. "It is quite intangible," Mrs. Campbell half crooned, for the baby's lids were drooping heavily. "I can't find that she lacks a good characteristic. I study her all the time. Perhaps the fault is in ourselves, as much as anything, because we insist upon studying her as a problem, instead of simply a very young girl. She is absolutely truthful,unless she happens to have a grudge against some one, and then she lies without any scruple at all,and she is generous and unselfish, and very amiable with the children, too."
  • 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.
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Acetone, ethanol, methyl ethyl ketone, butanol, isopropyl alcohol, ethyl acetate, methyl isobutyl ketone, others (including hexane and toluene).