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TWO:"Dog! traitor! cruel wretch! eater of meat!"AGRA

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 a quiet, darkened corner a girl was lying on a bier, a girl of the Brahmin caste, all in white, veiled by a transparent saree. By her side an old man, a bearded patriarch, seemed to wait for someone. Then another Brahmin came out from a little house, carrying the fire wherewith to light the funeral pile in a little pot hanging from his girdle. The two old men took up their burthenso light that even to them, tottering already towards their end, it seemed to be no weight. They made their way cautiously, so as not to tread on the [Pg 305]sleeping figures strewn about the street, going very slowly in devious zigzags. A dog woke and howled at them; and then, as silence fell, I could hear again the dying sounds of harmoniums and tom-toms, and the clatter of the games.
  • 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:The doors were shut; all was silencethe stillness of the star-lit night.Mystery broods over this ruined past; grandeur seemed to rise up in the sunset glow. We went[Pg 101] down the hill, while behind us a saffron haze veiled the Royal Hill, effaced every detail of architecture, and shed over all an amethystine halo.

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

THREE:The Maharajah of Benares sent his carriage this morning to take me to him. We went to the Ganges, where a palankin was in waiting to carry me across the narrow strip of sand between the road and the boat, escorted by a worthy who held a tall red umbrella, fringed with gold, over my head.
  • 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).