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TWO:He turned and went back to the cabin, where his wife stood at the door, with the children clinging to her. From down the north road there came a blood-freezing yell, and a shot, reverberating, rattling from hill to hill, muffling into silence among the crowding pines.A half dozen cow-boys came riding over from the camp of the outfit to relieve those on duty. Cairness was worn out with close on eighteen hours in the saddle, tearing and darting over the hills and ravines, quick as the shadow from some buzzard high in the sky, scrambling over rocks, cutting, wheeling, chasing after fleet-footed, scrawny cattle. He went back to camp, and without so much as washing the caked dust and sweat from his face, rolled himself in a blanket and slept.

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 he began to come to himself and to listen to all that Felipa had to tell him of the many things she had not put in her short and labored letters. He saw[Pg 140] that she looked more beautiful and less well than when he had left her. There was a shadow of weariness on her face that gave it a soft wistfulness which was altogether becoming. He supposed it was because she had nursed him untiringly, as she had; but it did not occur to him to thank her, because she had done only what was a wife's duty, only what he would have done for her if the case had been reversed. Toward the end of the day he began to wonder that no one had been to see him, and he spoke of it.Cairness tied his cow-pony to a post in front of a low calcimined adobe, and going across the patch of trodden earth knocked at the door. The little parson's own high voice called to him, and he went 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.
THREE:"Do you object to taking her into your house for a short time?""I have thought it over," said Cairness; "good night."

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

THREE:The bids, duly sealed, were given into the keeping of the commissary officer to be put in his safe, and kept until the day of judgment, when all being opened in public and in the presence of the aspirants, the lowest would[Pg 188] get the contract. It was a simple plan, and gave no more opportunity for underhand work than could be avoided. But there were opportunities for all that. It was barely possible—the thing had been done—for a commissary clerk or sergeant, desirous of adding to his pittance of pay, or of favoring a friend among the bidders, to tamper with the bids. By the same token there was no real reason why the commissary officer could not do it himself. Landor had never heard, or known, of such a case, but undoubtedly the way was there. It was a question of having the will and the possession of the safe keys.
  • 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:

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