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TWO:An old man who sold us some shells, had, in the days of prosperity, made a little fortune by charming the sharks with spells and signs that kept them away from the boats, and from the naked and defenceless pearl-fishers as they plunged into the deep to seek the precious shells.

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:After passing the temples and tombs that surround the Khoutab, the town of ruins lies scattered over the plain of pale sand and withered herbage.

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

THREE:All along the narrow streets, paved with broad flagstones up and down in low irregular steps, stand the five hundred temples of Benares, and between them houses with carved stone porticoes. The ochre-coloured stone, of which they all are built, is toned in places by a coating of reddish purple, faded by the rain and sun to pale flesh-colour, with an undertone of the yellow wall; and this takes on a glow as of ruby and sunset fires in the watery ripple reflected from the rivera mingling of every hue of intense sunshine, filtering through the awnings spread over the balconiesa glory of repose, tender and clear, which seems to emanate from the objects themselves, and to envelop them in a fine powder of light.
  • 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:In the evening, as I again went past the Towers of Silence, the palm trees were once more crowded with sleeping birds gorged with all the food sent them by the plague. On the other side of Back Bay, above the Field of Burning, a thick column of smoke rose up, red in the last beams of the crimson sun.

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