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TWO:There, again, they all sit down in the garden. The same little packets of betel, only wrapped in gold leaf, are offered to the company, and bunches of chrysanthemum sprinkled with scent.

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:The old king is at once cured; he embraces his sons again and again. After this emotion the first thing he remarks is the new palace that has sprung from the ground exactly opposite his own.
  • 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:I rode to Tiger Hill. Overhead hung a dense mist, like a roof of shadow, perfectly still, wrapping us in damp and frightfully cold vapour. After two hours' ride in the darkness we reached our [Pg 151]destination. Suddenly the cloud fell like a curtain pulled down, the sky appeared, and then the earth at our feet became visible in the starlight. Some vestiges of a temple could be discerned among the grassthe foundations of enormous halls, and still standing in solitude, the brick chimneys in which the devout were wont to burn their prayers, written on rice-paper. Far away, in the transparent air, above a wall of grey cloudthe dull, dingy grey of dirty cotton-woola speck showed as a beacon of lilac light, of the hue and form of a cyclamen flower; this turned to rose, to brick-red, to warm gold colour, fading into silver; and then, against the blue sky, showed immaculately white. This was GaurisankarMount Everestthe top of the world, appallingly high, inconceivably vast, though lost in the distance, and seen from a hillock three thousand metres above the sea.

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

THREE:
  • 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:Coolies in white turbans were busy round the machines. They are very skilful, but work with determined slowness as a mute rebellion against the humiliating coercion of obeying a thing of wood and iron, and above all of obeying it without stopping, for the ideal of every Hindoo is to do nothing. And this rose to positive martyrdom when, in the absence of our own servants, who were nowhere to be found, one of these craftsmen, a Brahmin, strictly forbidden by his religion ever to touch the food of the disbelievers, or even the[Pg 294] vessels they use, was obliged to make tea for us. Looking utterly miserable, the poor fellow weighed out the leaves, put them into little antique earthenware pots, and poured on the boiling water. A sand-glass marked how long the infusion was to stand. He even brought us some pretty little crackle basins that looked as if they had come out of some old-world convent pharmacy; but the poor man could not bring himself to pour the tea outhe fled.

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