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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:Kirby was without fear, but he was also without redress. He turned from them, his face contracted with the pain of his impotence, and walked back to the house. "I could order them off the ranch to-night," he told his wife, as he dropped on a chair, and taking up the hearth brush made a feint of sweeping two or three cinders from the floor; "but it's ten to one they wouldn't go and it would weaken my authority—not that I have any, to be sure—and besides," he flung down the brush desperately and turned to her, "I didn't want to tell you before, but there is a pretty straight rumor that Victorio's band, or a part of it, is in these hills. We may need the men at any time." Neither spoke of the two who should have been back hours ago. The night closed slowly down.
  • 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:Landor had agreed to trust her to Cairness and an escort of three soldiers. He could ill spare time from the telegraph line, under the circumstances; it might be too imperatively needed at any moment. He mounted his wife quickly. "You are not afraid?" he asked. But he knew so well that she was not, that he did not wait for her answer.Any other fire—excepting always in an ammunition magazine—is easier to handle than one in a stable. It takes time to blind plunging horses and lead them out singly. And there is no time to take. Hay and straw[Pg 208] and gunny-sacks and the dry wood of the stable go up like tinder. It has burned itself out before you can begin to extinguish it.

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

THREE:In the weeks that followed, Landor spent days and some nights—those when he sat up to visit the guard, as a rule—attempting to decide why his ward repelled him. She seemed to be quite like any other contented and natural young girl. She danced, and courted admiration, within the bounds of propriety; she was fond of dress, and rather above the average in intelligence. Usually she was excellent company, whimsical and sweet-humored. She rode well enough, and learned—to his intense annoyance—to shoot with a bow and arrow quite remarkably, so much so that they nicknamed her Diana. He had remonstrated at first, but there was no reason to urge, after all. Archery was quite a feminine sport.
  • 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:Presently the nurse came, a big, fat Mexican woman, with all her people's love of children showing on her moon face as she put out her arms. She had been with the Taylors since before the baby's birth, and she had more of its affection than the mother.

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