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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:In the end stall the bronco was still squealing and whimpering in an almost human key. He struck it on the flank with his open palm and spoke, "Get over[Pg 210] there." It had been made so much of a pet, and had been so constantly with him, that it was more intelligent than the average of its kind. It got over and stood quiet and still, trembling. He cut the halter close to the knot, turned it out of the stall, and flinging himself across its back dug his heels into its belly.
  • 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:The horse came down to a walk. She had lost all control of the reins now, and clung to the pommel with both hands, swaying from side to side. She could hear galloping hoofs, behind and in front—or was it only the blood, the icy cold blood, pounding in her ears?Because of which Landor, as soon as he was up, went in search of the commanding officer, and found him in the adjutant's office, and the adjutant with him. He demanded an explanation. "If any one has been [Pg 144]saying anything about me, I want to know it. I want to face him. It can't be that newspaper rot. We are all too used to it."

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

THREE:So at five o'clock Cairness, coming again into that part of the cabin which his hostess persistently named the drawing-room, found the three Englishmen taking their tea, and a little man in clerical garb observing the rite with considerable uncertainty. He would have no tea himself, and his tone expressed a deep distrust[Pg 37] of the beverage. By the side of his chair stood a tall silk hat. It was in all probability the only one in the territories, or west of the Missouri, for that matter, and it caught Cairness's eye at once, the more especially as it was pierced by two round holes. As he stirred his tea and ate the thin slices of buttered bread, his glance wandered frequently to the hat.Cairness had groped his way back. He stood watching them. And he, too, was ready to kill. If Landor had raised his hand against her, he would have shot him down.
  • 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:"I am going back to my ranch on the reservation," he said measuredly."She also said that it would kill her."

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