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TWO:His own was instantly as cold. "I supposed you had quite forgotten all that," he said.

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:
  • 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:His contentment was not to last for long, however. The quartermaster broke in upon it rudely as he sat on the porch one morning after guard-mounting, "Have you seen the man who came up with the scouts from Grant?""Geronimo does not want that any more. He has[Pg 271] tried to do right. He is not thinking bad. Such stories ought not to be put in the newspapers."

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

THREE:It went well enough for a time, and the hills seemed coming a little nearer, to be rougher on the surface. Then the double-loaded horse fagged. Cabot felt that it did, and grasped hard on the burning cantle as he made his resolve. When Landor used his spurs for the first time, he loosed his hold and dropped to the ground.
  • 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:Felipa's revolver was in her hand, and cocked and pointed straight between two eyes that shone out of the blackness. And so, for an appreciable time, she stood. Then a long arm came feeling out; but because she was looking along the sight into the face at the very end of the muzzle, she failed to see it. When it closed fast about her waist, she gave a quick gasp and fired. But the bullet, instead of going straight through the forehead beneath the head[Pg 79] band, as she had meant it to do, ploughed down. The grasp on the body relaxed for an instant; the next it had tightened, and a branch had struck the pistol from her hand.The captain knitted his thick brows and interposed quickly, talking against time. "If the Tucson ring and the Indian Bureau had one head, I should like the detail of cutting it off." His annoyance seemed to be of an impersonal sort, and the commandant began to feel that he must have handled the thing rather well, after all. He gained in self-esteem and equanimity.

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