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TWO:After the delay, which in India is a matter of course, the caravan set outthe last to go; for during the past three months no European had[Pg 247] crossed the pass, and in consequence of misunderstandings with some of the rebel tribes to the north, even the natives were prohibited henceforth from going to Cabul.

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:[Pg 232]
  • 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:This morning, at Peshawur, down come the police on my houseboatthree of themand their leader explains matters. Abibulla interprets.The song of birds in the mitigated atmosphere of the dying day came in from outside, for a moment almost drowning the pleader's weariful tones as he poured forth his statement, emphasized by sweeping gestures.

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

THREE:Outside the night is moonless, deep blue. Venus seems quite close to us, shining with intense brightness, and the jasmines scent the air, softly lighted by the lanterns which burn out one by one.A muffled sound of instruments, mingling in confusion in the myriad echoes, came dying on my ear, hardly audible. A gleam of light flashed in the corridor and then went out. Then some lights seemed to be coming towards me, and again all was gloom. An orchestra of bagpipes, of kemanches and darboukhas sounded close by me, and then was lost in the distance, and the phantasmagoria of lights still went on. At last, at the further end of the arcade where I was standing, two men raised green-flamed torches at the end of long poles, followed by two drummers and musicians playing on bagpipes and viols. Children squatting on the ground lighted coloured fire that[Pg 118] made a bright blaze, and died out in stifling smoke, shrouding the priestsa cloud hardly tinted by the torches.
  • 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 spacious harbour, where a whole fleet of steamships lies at anchor, a swarm of decked boats are moving about, sober in colour, with the bows raised very high in a long peak, and immense narrow sails crossed like a pair of scissors, and resembling a seagull's wings.

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