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TWO:On the landing-stage we read in large letters: "Beware of sunstroke," and lower down, "Avoid it by buying the best umbrellas and the best pith helmets of John Dash." The streets are the commonplace highways of a commercial town; the houses tall, with shops below. Dust and light alike were blinding; jinrickshaws were passing to and fro, drawn by almost naked coolies running as fast as horses.

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 courtyard a tall and gaudy cock was keeping the crows in order, driving them relentlessly away from the kitchen precincts. On the roof of the servants' quarters, always in the same spot, perched a kite, ready to pounce as soon as anything was thrown out. The doves, the house-pigeons, the fowls fled at once and squatted in corners; but the cock stood his ground, his feathers all on end, his crest erect, chuckling with rage and stalking round the yard within ten paces of the bird of prey.
  • 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:We met a strange caravan; a small party of men surrounding more than a hundred women wrapped in dark robes, and bearing on their veiled heads heavy bales sewn up in matting, and large copper pots. A little blind boy led the way, singing a monotonous chant of three high notes. He came up to my tonga, and to thank me for the small coin I gave him he said, "Salaam, Sahib," and then repeated the same words again and again to his[Pg 37] tune, dancing a little step of his own invention till the whole caravan was hidden from me in a cloud of dust.

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

THREE:As we stood up there the caravan for Cabul came in sight on the road below, and slowly disappeared wrapped in dust, with mechanical steadiness and[Pg 250] without a sound. After that came the other train of travellers from Peshawur, singing to the accompaniment of mule-bells, every sound swelled by the echo. Children's laughter came up to our ears, the scream of an elephant angry at being stoppedeven at a distance we could still hear them a littleand then silence fell again under the flight of the eagles soaring in circles further and further away as they followed the caravan.
  • 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:The ground here and there is stained with large pink patches of a disinfectant, smelling of chlorine,[Pg 9] strewn in front of the house where anyone lies dead. And this of itself is enough to recall to mind the spectre of the plague that is decimating Bombay; in this excitement, this turmoil of colour and noise, we had forgotten it.On the great banyan trees in the garden, and on every palm, torpid vultures sit in the sun, awaiting the meal that will come with the next funeral procession.

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