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TWO:But the enchantment of this rose-tinted land, vibrating in the sunshine, is evanescent. The city[Pg 3] comes into view in huge white massesdocks, and factories with tall chimneys; and coco-palms, in long lines of monotonous growth, overshadow square houses devoid of style.

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:More and yet more palaces; remains of marble porticoes and columns, walls covered with tiles glittering in the blazing sunshine like topaz and emerald; and over all the peace of dust and death, the only moving thing those vultures, in shades of dull grey almost indistinguishable from the colour of the stones.

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

THREE:By the roadside came two figures tottering along, and then, turning to look at me, showed me the horror of their shrivelled bodies, their dimmed eyesall that seemed alive in those drawn faces of skin and bonethe jaw stiffened in a skull-like grimace; victims of the famine, who had come from the Central Provinces where there had been no rain for two years, and where everything was dying. This couple were making their way to a poorhouse hard by. They had come from a village in Bundelkund, whence all the inhabitants had fledthemselves the sole survivors of a family of eighteen souls. First the children died, then the very old folks. These two had kept themselves alive on what had been given them on the way, but immigrants soon were too many in the districts unvisited by famine, and ere long they could get nothing; then they fed on roots, on what they[Pg 191] could steal from fields or garden-plots, or found left to rot, scorned even by the beasts.
  • 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:[Pg 292]The fort of Allahabad, the fort of the mutiny of 1857, is a complete citadel where, in the thickness of the walls, behind screens of acacia trees, lurk doors into palaces. Among the gardens there are clearings full of guns and ambulance waggons, and enormous barracks and huts for native soldiers. Then on the ponderous stonework of the ramparts rise little kiosks in the light Hindoo-Mussulman style, elaborate and slender, built by Akbar the [Pg 183]conqueror, who took Prayag and razed it, to build on the site a city dedicated to Allah. And now modern architecture is slowly invading it, adding to the flat walls which hide under their monotony the gems of stonework with their elegant decoration.

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